Monthly Weather Review Western Australia December 2008 Monthly Weather Review Western Australia December 2008

The Monthly Weather Review - Western Australia is produced twelve times each year by the Australian Bureau of Meteorology's Western Australia Climate Services Centre. It is intended to provide a concise but informative overview of the temperatures, rainfall and significant weather events in Western Australia for the month. To keep the Monthly Weather Review as timely as possible, much of the information is based on electronic reports. Although every effort is made to ensure the accuracy of these reports, the results can be considered only preliminary until complete quality control procedures have been carried out. Major discrepancies will be noted in later issues. We are keen to ensure that the Monthly Weather Review is appropriate to the needs of its readers. If you have any comments or suggestions, please do not hesitate to contact us: By mail Western Australia Climate Services Centre Bureau of Meteorology PO Box 1370 WEST PERTH WA 6872 AUSTRALIA By telephone (08) 9263 2222 By email [email protected] You may also wish to visit the Bureau's home page, http://www.bom.gov.au. Units of measurement Except where noted, temperature is given in degrees Celsius (°C), rainfall in millimetres (mm), and wind speed in kilometres per hour (km/h). Observation times and periods Each station in Western Australia makes its main observation for the day at 9 am local time. At this time, the precipitation over the past 24 hours is determined, and maximum and minimum thermometers are also read and reset. In this publication, the following conventions are used for assigning dates to the observations made: Maximum temperatures are for the 24 hours from 9 am on the date mentioned. They normally occur in the afternoon of that day. Minimum temperatures are for the 24 hours to 9 am on the date mentioned. They normally occur in the early morning of that day. Daily rainfall is for the 24 hours to 9 am on the date mentioned. This means a significant fraction of the rain may have occurred on the previous calendar day. Monthly rainfall is for the period from 9 am on the last day of the previous month to 9 am on the last day of this month. Maximum daily wind gusts are in the 24 hours from midnight to midnight. Climatological values The climatological averages shown in the text and tables are generally long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 30 years of record, as they cannot then be calculated reliably. Climatological extremes are generally taken from available observations from all available years of record. The number of years can vary substantially from site to site. Copyright © Commonwealth of Australia 2009 This work is copyright. You may download, display, print and reproduce this material in unaltered form only (retaining this notice) for your personal, non-commercial use or use within your organisation. Apart from any use as permitted under the Copyright Act 1968, all other rights are reserved. Requests and inquiries concerning reproduction and rights should be addressed to Commonwealth Copyright Administration, Attorney General’s Department, Robert Garran Offices, National Circuit, Barton ACT 2600 or posted at http://www.ag.gov.au/cca.

Product code IDCKGC21R1. This version prepared on 12 March 2009, revising an issue prepared on 22 January 2009. ISSN 1836-3032 Cover photograph Cumulus clouds over Mitchell Plateau near Port Warrander, Admiralty Gulf, North Kimberley, WA. Photograph by Kerrie Goodchild, 28 January 2003. Copyright © 2008 Kerrie Goodchild. Used with permission. If you have a photo you think would make a good cover for the Monthly Weather Review, please contact us at the address above. Monthly Weather Review Western Australia December 2008

Overview A Cool and Wet Month for WA Extremes in December 2008 • Above average rainfall for WA. • Below average mean maximum temperature for Hottest day WA (Highest daily maximum temperature) • Near average mean minimum temperature for 45.7 °C at Marble Bar on the 19th WA. Warmest days on average The month of December in 2008 was generally cool (Highest mean daily maximum temperature) and wet in WA. The first cyclone to cross the WA 40.9 °C at Marble Bar coast for the 2008/2009 season occurred as Tropical Coolest days on average Cyclone Billy formed in the Joseph Bonaparte Gulf (Lowest mean daily maximum temperature) before making landfall near Wyndham as a category 20.7 °C at Albany two system. Rainfall was mostly above average for Coldest day the month, particularly in the northern Kimberley (Lowest daily maximum temperature) where several daily and monthly December records 16.2 °C at Jacup on the 10th were broken, mostly due to the passage of TC Billy. Coldest night Persistent thunderstorms kept daily maximum (Lowest daily minimum temperature) temperatures below normal through the Interior and 3.9 °C at Eyre on the 7th Kimberley, whilst parts of the south and west coasts Coolest nights on average also saw below average mean maxima, leading to a (Lowest mean daily minimum temperature) below average month across the state as a whole. 9.2 °C at Jarrahwood Overnight minima were below normal near the west Warmest nights on average coast and in the east and central Kimberley, but (Highest mean daily minimum temperature) above average in the far southeast, resulting in a 27.0 °C at Troughton Island near normal WA state mean minimum. (On the WA mainland) 26.4 °C at Bidyadanga 26.4 °C at Broome Airport Warmest night (Highest daily minimum temperature) 32.0 °C at Wittenoom on the 19th Wettest overall (Highest total rainfall) 697.8 mm at Oombulgurri Wettest day (Highest daily rainfall) 280.0 mm at Laurel Downs on the 26th Highest wind gust 94 km/h at Giles Meteorological Office on the 11th

page 1 Monthly Weather Review Western Australia December 2008

Significant weather 23rd: Afternoon thunderstorms caused strong winds uprooting trees and downing power lines in Tropical Cyclones Kalgoorlie. Two trees fell on cars. 15th - 28th, Tropical Cyclone Billy: A tropical low formed in the Timor Sea, northwest of Darwin on the 26th: Strong winds during an afternoon 15th, initially moving to the southwest before thunderstorm caused some damage to a mine near tracking to the southeast on the 17th. The low Leinster in the northern Goldfields at 1445 WDT. moved into the Joseph Bonaparte Gulf on the 18th 30th: A severe thunderstorm in the Central West and intensified to a tropical cyclone north of district caused some damage with three houses roofs Wyndham. The slow moving system reached torn off and some broken tree branches and fences. category two intensity before moving to the west-southwest, crossing the coast near Wyndham Heavy Rainfall early on the 20th. TC Billy passed over Oombulgurri 10th/11th: The passage of a middle level trough and community at category 2 strength, causing tree moist low level southeasterly winds resulted in heavy damage and power outages before weakening to a rainfall over southern parts of the Southwest Land tropical low. Heavy rainfall caused flooding and road Division (SWLD) and southern Goldfields. A closures in the northeast Kimberley. The heaviest stormspotter reported that a thunderstorm rainfall was recorded at Wyndham, with 384.0 mm in (approximately 1230 WDT on the 10th) to the east of the 48 hours to 9am on the 21st. The low tracked Hyden produced 50 mm of rainfall in 30 minutes and west-southwest across the Kimberley, redeveloping hail up to 1.5cm in diameter. Crops were flattened to cyclone strength after moving off the northwest and paddocks were under water. In the 24hrs to 9am Kimberley coast near Kuri Bay on the 22nd. TC Billy on the 11th, Fitzgerald (Southeast Coastal) recorded then moved southwest along the coast, passing over 95.4 mm, Desert Fringe (Great Southern) 70 mm and the northern part of the Dampier Peninsula to the Bremer Bay (Southeast Coastal) 59 mm. Flooding and north of Broome overnight on the 22nd and in the road closures were reported near Tambellup. In morning of the 23rd. Broome Airport recorded a addition, a stormspotter at Kambalda reported wind gust of 91 km/h at 0922 WDT on the 23rd as TC 40 mm of rainfall in 20 minutes between Billy passed to the northwest of the town. TC Billy approximately 1030 WDT and 1100 WDT on the 11th rapidly intensified late on the 23rd and during the with the 24hr to 9am rainfall on the 12th recorded at 24th after moving westwards into open waters and Kambalda West of 42.4 mm. reached category four intensity late on the 24th, about 280 km north of Port Hedland. TC Billy then 21st: Heavy rainfall associated with an upper trough moved to the west-northwest away from the Pilbara caused damage to fruit and vegetable crops around coast, weakening from late on the 25th due to Pemberton and Northcliffe estimated in the millions increasing vertical wind shear. TC Billy eventually of dollars. The heaviest daily rainfall was 70 mm at weakened below TC intensity late on the 28th, about Karri Valley Resort. There were reports of severe 750 km north of Exmouth. winds that brought trees down and disrupted power supplies. Hail also contributed to the damage. Thunderstorms 3rd: Severe damage occurred at Laverton in the Goldfields at approximately 1530 WDT. Power poles were torn down and trees were ripped out by the roots. At the sports club, the caretaker's roof was torn off and dumped 150m away. Most of the damage occurred near Weld Drive on the northern edge of town. Reports from the town labelled the event as a tornado but the description of the damage trail was more consistent with a downburst. A "big dust storm" was reported to accompany the wind. In addition, severe thunderstorms were identified on radar near a surface trough in the Southeast Coastal district, extending from Hopetoun to Salmon Gums, although no damage was reported from these locations. 8th: A thunderstorm produced a wind gust of 93 km/h at 1950 WDT at Eucla. 11th: Giles recorded a wind gust of 94 km/h at 1942 WDT during a thunderstorm. 20th: Munglinup West recorded a wind gust of 91 km/h at 1743 WDT during a thunderstorm.

page 2 Monthly Weather Review Western Australia December 2008

Synoptic summary southern Goldfields and Eucla, with reports of severe thunderstorms and heavy rain. Particularly heavy December began with a weak ridge of high pressure falls were reported in the western Southeast Coastal situated along the south coast while a broad area of and neighbouring parts of adjacent districts. Showers low pressure dominated northern parts. Scattered and storms also occurred through the Interior, far showers and thunderstorms were observed through northeast Pilbara and Kimberley. the Kimberley, tending to isolated in the inland Pilbara and northern Gascoyne on the 1st. On the The mid-level low and associated weather tracked 2nd, a trough over central and northern WA eastwards on the 11th and weakened, before deepened and extended to southwestern parts moving out of the state in the early morning on the ahead of a cold front approaching from the west. 12th. Scattered showers and thunderstorms From the 2nd to the 4th, the trough moved occurred through the Kimberley and Interior on the eastwards across southern parts of WA, as the cold 10th and 11th before contracting to the Kimberley front slipped to the southeast, while the northern on the 12th. On the 13th, a weak ridge was situated portion of the trough remained near stationary. along the south coast while a weak trough extended Isolated showers and thunderstorms developed, from the Kimberley down the west coast. Generally mainly in northern parts of the South West Land fine conditions were observed over the state apart Division (SWLD), the inland Gascoyne and Pilbara, from isolated afternoon thunderstorm activity in the Goldfields and Interior on the 2nd, contracting to far northern Kimberley. The West Coast Trough eastern and southern parts of the state on the 3rd deepened on the 14th and moved inland ahead of a and to the Interior, northeast Gascoyne and weak cold front to the south of the continent, to neighbouring parts on the 4th. Severe thunderstorms produce isolated showers and thunderstorms in the were reported in the Goldfields and Southeast South Coastal and neighbouring parts of adjacent Coastal districts on the 3rd. Afternoon showers and districts while afternoon and evening thunderstorms thunderstorms continued in the Kimberley over this continued in the north Kimberley. On the 15th, the period. Showers were also reported on the western trough continued to propagate eastwards, with some south coast on the 4th as a weak cold front brushed showers near the SWLD south coast, and isolated the coast. On the 5th, the heat trough remained over showers and thunderstorms observed in southeast the Kimberley and Pilbara, connecting to another parts of the SWLD, southern Goldfields and western trough through the southeast of the state, while a Eucla. Isolated showers and storms were observed in ridge developed along the south coast during the the north and west Kimberley. day. The southern half was fine apart from some The trough continued eastwards on the 16th and morning drizzle along the SWLD south coast, while moved out of southern parts of the state as a ridge showers and thunderstorms persisted over the of high pressure strengthened along the south coast Interior, northern Goldfields, eastern Gascoyne and on the 17th. Isolated showers continued along the Kimberley. western south coast, whilst showers and A high moved into the Bight on the 6th as a trough thunderstorms were observed in the Southeast extended from the Kimberley through inland Pilbara Coastal, southern Goldfields, Eucla and southern and deepened along the west coast. Showers and Interior on the 16th, contracting to the Eucla and thunderstorms were observed in the Interior and southern Interior on the 17th. Showers and storms Kimberley, and drizzle was reported near the south persisted in the Kimberley. On the 18th, a high coast, but otherwise the state was fine and mostly pressure system moved into the Bight as a trough sunny. On the 7th, a cold front to the southwest formed along the west coast. In the north of the mobilised the West Coast Trough and it propagated state a low, first identified over the Timor Sea on the across southern WA on the 7th and 8th, before 15th, developed into Tropical Cyclone Billy in the moving into South Australia on the 9th. For southern Joseph Bonaparte Gulf during the afternoon of the parts, showers were isolated and confined to near 18th. Isolated showers and storms were observed in the trough in the SWLD and Goldfields on the 7th, the Kimberley and Interior. The West Coast Trough while on the 8th the southeast was the focus of the deepened and moved slowly eastwards on the 19th, stormy weather in the south. Afternoon showers and causing late afternoon showers and thunderstorms thunderstorms continued through the Interior and through central parts of the SWLD and Gascoyne. Kimberley on the 7th and 8th. Showers and storms Showers and thunderstorms persisted in the and were confined to mainly the northern Interior Kimberley and northern Interior as TC Billy hovered and Kimberley on the 9th, however isolated showers near the northeast Kimberley coast. TC Billy made developed in mainly southern SWLD districts as a landfall as a category 2 system near Wyndham early middle level low approached the west coast. On the on the 20th and weakened to a tropical depression 10th, a deep surface low lay over the Interior as a over land as it headed west-southwest. Showers and ridge sat south of the continent. These features storms continued in the Kimberley with very heavy combined with a mid-level low that moved over the falls and flooding in the northeast Kimberley. The southwest corner of WA to cause scattered showers surface trough in the south continued its eastward and thunderstorms over southern parts of the SWLD, movement, and a mid-level disturbance moved over

page 3 Monthly Weather Review Western Australia December 2008

the southwest corner of WA. Showers and storms western Goldfields, as well as the Gascoyne, Pilbara were reported in most districts in the southern half and Kimberley. of WA, with some heavy rain and crop damage in the southeast of the Southwest district. The 21st saw showers and thunderstorms contract to the Interior as the middle level trough weakened and the surface trough moved east out of WA. In the north, ex-TC Billy continued to move west-southwest with further heavy rainfall and isolated thunderstorms across mainly the northern Kimberley. The tropical low moved off the west Kimberley coast near Kuri Bay on the 22nd intensifying over the ocean. Widespread rainfall continued in the Kimberley, with the highest falls recorded near the northwest Kimberley coast. During it's time over the Kimberley, the tropical low broke highest December daily rainfall records at Wyndham, Derby Aero and Oombulgurri. In the south, a high developed in the Bight with a trough near the west coast. Showers and thunderstorms developed in the east Pilbara, Interior, northern parts of the Goldfields and Eucla districts on the 22nd. Newly renamed TC Billy moved southwest on the 23rd along the Kimberley coast, before heading westward away from the continent, with showers and thunderstorms easing as the cyclone moved offshore. The heaviest falls occurred along the west Kimberley coast. The West Coast Trough moved eastwards ahead of a cold front, with showers and thunderstorms continuing for most of eastern WA with reports of severe thunderstorms in the Goldfields. A weak ridge was near the WA south coast on the 24th and maintained this position for several days, although a weak front brushed the SWLD south coast on the 25th bringing a few showers to the area. Showers and thunderstorms were reported in all districts outside the SWLD from the 24th to the 26th, with some particularly heavy falls in the Kimberley as another tropical low moved westward across the region. TC Billy continued to move away from the WA coast and intensify, peaking as a category 4 system on the 24th and 25th but weakened thereafter, decaying to a tropical low on the 28th, well off the WA coast. A ridge of high pressure persisted near the south coast on the 27th and 28th, with some light showers reported near the south coast, while a trough remained over the north of the state. Afternoon showers and thunderstorms were observed through the northern Goldfields, inland Gascoyne and Pilbara, Interior and Kimberley. Cooler air extended into the Interior on the 29th, with thunderstorms contracting to the northern Interior, Kimberley and Pilbara, while a trough developed along the west coast causing isolated thunderstorms in the Gascoyne and northern SWLD. This regime continued into the 30th, with similar weather conditions across the state, while on the 31st the trough along the west coast began to move inland and thunderstorms developed through eastern parts of the SWLD and

page 4 Monthly Weather Review Western Australia December 2008

Daily mean sea level pressure analyses 1 December 2008 2 December 2008 3 December 2008

4 December 2008 5 December 2008 6 December 2008

7 December 2008 8 December 2008 9 December 2008

10 December 2008 11 December 2008 12 December 2008

13 December 2008 14 December 2008 15 December 2008

16 December 2008 17 December 2008 18 December 2008

page 5 Monthly Weather Review Western Australia December 2008

19 December 2008 20 December 2008 21 December 2008

22 December 2008 23 December 2008 24 December 2008

25 December 2008 26 December 2008 27 December 2008

28 December 2008 29 December 2008 30 December 2008

31 December 2008

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Temperatures The mean temperature for Western Australia in December 2008 was 27.4 °C, which is 0.5 °C below the long-term average, and in the below average range. Most parts of the state were below normal, particularly the northeast border region and the southern coast which were up to 2 °C below average.

New temperature records

Record lowest December daily maximum temperature Years New record Old record of record on the 4th in Wyndham 26.0 on the 19th 26.5 41 2000

Record lowest December daily minimum temperature Years New record Old record of record on the 5th in Mandora 14.5 on the 13th 16.4 44 1978 on the 1st in Learmonth Airport 14.2 on the 11th 14.4 34 1981

page 7 Monthly Weather Review Western Australia December 2008

Maximum temperatures Anomalies of mean daily maximum temperature in December 2008 Mean maximum temperatures were very much below average in central eastern WA and below average in south coastal parts of the SWLD, with these areas up to 3 °C cooler than normal. The remainder of eastern and southern areas, as well as parts of the west coast of WA, were below the average mean maxima, while the rest of the state was near average. Averaged across the state as a whole, the mean maximum temperature was 0.9 °C below average, which falls in the below average category. The hottest day was 45.7 °C at Marble Bar on the 19th. The warmest days on average were 40.9 °C at Marble Bar, followed by 40.3 °C at Telfer Aero. The coolest day was 16.2 °C at Jacup on the 10th. The coolest days on average were 20.7 °C at Albany, followed by 21.1 °C at North Walpole. Decile rank of mean daily maximum temperature in December 2008

There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated.

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Minimum temperatures Anomalies of mean daily minimum temperature in December 2008 Mean minimum temperatures were below average in the eastern Kimberley, up to 2 °C cooler than normal, and below average in western parts of the Gascoyne and Central West districts. In contrast, the far southeast was up to 2 °C warmer than normal in terms of overnight temperatures which is above average. Averaged across the state as a whole, the WA mean minimum temperature was near average. The coldest night was 3.9 °C at Eyre on the 7th. The coolest nights on average were 9.2 °C at Jarrahwood, followed by 10.1 °C at Bridgetown. The warmest nights on average were 27.0 °C at Troughton Island with Bidyadanga and Broome Airport on the mainland recording 26.4 °C. The warmest night was 32.0 °C at Wittenoom on the 19th, followed by 31.2 °C at Telfer Aero on both the 2nd and 19th. Decile rank of mean daily minimum temperature in December 2008

There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated.

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Rainfall

December rainfall in WA was above to very much Record highest December daily rainfall above average in most of the Kimberley, Pilbara, Years New record Old record of Interior, Eucla and southern parts of the SWLD and record neighbouring southern Goldfields, with record high on the 13th Peppermint Grove 61.0 on the 11th 41.1 100 monthly totals reported in the northeast Kimberley. in 1914 This contrasts with below to very much below on the 31st Gnowangerup 48.0 on the 10th 46.7 95 average rainfall in small parts of the Gascoyne. in 1959 Averaged across WA as a whole, rainfall in December on the 10th Fossil Downs 160.0 on the 26th 114.3 93 2008 was above average. in 1916 on the 1st in Bendering 39.0 on the 11th 34.8 80 Tropical Cyclone Billy produced heavy rainfall and 1951 some flooding through the north Kimberley as it on the 20th Bremer Bay 59.0 on the 11th 47.8 77 crossed the Kimberley coast near Wyndham early on in 1913 the 20th. TC Billy weakened to a tropical low as it on the 12th Pemberton 56.9 on the 21st 46.7 68 tracked across the north Kimberley, then crossed the in 1996 coast near Kuri Bay on the 22nd, reforming into a on the 4th in Oombulgurri 223.0 on the 20th 147.3 49 tropical cyclone again as it moved west into the 1948 Indian Ocean, before eventually dissipating over the on the 15th Derby Aero 126.8 on the 23rd 102.0 48 ocean. Wyndham received 254.0 mm in the 24 hrs to in 1996 9am on the 21st, its highest daily rainfall on record on the 12th Wyndham 254.0 on the 21st 154.8 41 for December. TC Billy also broke highest December in 1998 daily rainfall records at Derby Aero and Oombulgurri, on the 19th Yalleen 61.4 on the 30th 51.8 41 and contributed significantly to highest monthly in 1994 rainfall records being broken for several sites in the on the 12th North Stirlings 35.0 on the 11th 29.2 40 Kimberley. in 1999 on the 1st in A second tropical low moved across the Kimberley Esperance Aero 29.0 on the 11th 25.6 39 on the 25th and 26th bringing further significant 1999 rainfall, especially to central parts. Laurel Downs, near Fitzroy Crossing, recorded 478.0 mm of rainfall Record highest December total rainfall Years in the 48 hours to 9am on the 27th. New Old record of record record Highest daily rainfall records were also broken in the Peppermint Grove 119.0 110.3 in 1983 101 Southeast Coastal district on the 10th and 11th due Fossil Downs 284.3 253.6 in 1917 99 to the combination of moist southerly winds and a Bremer Bay 112.8 105.4 in 1983 98 mid-level disturbance. Northcliffe 105.2 90.7 in 1944 83 Kimberley Res.Station 480.3 322.8 in 1987 64 The wettest overall was 697.8 mm at Oombulgurri, Oombulgurri 697.8 359.3 in 1933 56 followed by 676.6 mm at Wyndham and 607.5 mm at Chesalon 80.0 72.0 in 1987 43 Diggers Rest, all in the Kimberley. Wyndham 676.6 311.5 in 1996 41 The wettest single day was 280.0 mm at Laurel Cherrabun 208.0 129.6 in 1971 37 Downs on the 26th, followed by 254.0 mm at Kununurra Aero 382.0 333.2 in 1996 34 Wyndham on the 21st. Mount Elizabeth 503.1 354.1 in 1998 34 Brooking Springs 299.4 278.0 in 1996 32

page 10 Monthly Weather Review Western Australia December 2008

Total rainfall in December 2008

Decile rank of total rainfall in December 2008

There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated.

page 11 Monthly Weather Review Western Australia December 2008

Daily maximum temperature for December 2008

1 December 2008 2 December 2008 3 December 2008 4 December 2008 5 December 2008

6 December 2008 7 December 2008 8 December 2008 9 December 2008 10 December 2008

11 December 2008 12 December 2008 13 December 2008 14 December 2008 15 December 2008

16 December 2008 17 December 2008 18 December 2008 19 December 2008 20 December 2008

21 December 2008 22 December 2008 23 December 2008 24 December 2008 25 December 2008

26 December 2008 27 December 2008 28 December 2008 29 December 2008 30 December 2008

31 December 2008

These maps are presented to give a statewide overview of conditions on each day through the month. There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated.

page 12 Monthly Weather Review Western Australia December 2008

Daily minimum temperature for December 2008

1 December 2008 2 December 2008 3 December 2008 4 December 2008 5 December 2008

6 December 2008 7 December 2008 8 December 2008 9 December 2008 10 December 2008

11 December 2008 12 December 2008 13 December 2008 14 December 2008 15 December 2008

16 December 2008 17 December 2008 18 December 2008 19 December 2008 20 December 2008

21 December 2008 22 December 2008 23 December 2008 24 December 2008 25 December 2008

26 December 2008 27 December 2008 28 December 2008 29 December 2008 30 December 2008

31 December 2008

These maps are presented to give a statewide overview of conditions on each day through the month. There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated.

page 13 Monthly Weather Review Western Australia December 2008

Daily rainfall for December 2008

1 December 2008 2 December 2008 3 December 2008 4 December 2008 5 December 2008

6 December 2008 7 December 2008 8 December 2008 9 December 2008 10 December 2008

11 December 2008 12 December 2008 13 December 2008 14 December 2008 15 December 2008

16 December 2008 17 December 2008 18 December 2008 19 December 2008 20 December 2008

21 December 2008 22 December 2008 23 December 2008 24 December 2008 25 December 2008

26 December 2008 27 December 2008 28 December 2008 29 December 2008 30 December 2008

31 December 2008

These maps are presented to give a statewide overview of conditions on each day through the month. There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated.

page 14 Monthly Weather Review Western Australia December 2008

Summary of observations for Perth in December 2008 Observations and most climatological values are from the "Perth Metro" site at Mount Lawley, except for sunshine, evaporation and phenomena which are taken from Perth Airport. Extremes are captured from a composite of sites including Mount Lawley, former Regional Office sites near the city centre, and Perth Airport Observed this month Climatological value Temperature Mean daily maximum temperature 27.8 °C 28.7 °C Mean daily minimum temperature 15.6 °C 16.2 °C Mean temperature 21.7 °C 22.4 °C Mean temperature at 9 am 20.3 °C 22.7 °C Mean temperature at 3 pm 26.4 °C 26.7 °C Highest temperature 39.0 °C on the 30th 44.2 °C on the 26th in 2007 Lowest temperature 12.2 °C on the 2nd 7.9 °C on the 7th in 2007 Days 30 °C or warmer 8 11.1 Days 32 °C or warmer 5 7.6 Days 35 °C or warmer 3 4.2 Days 40 °C or warmer 0 0.7 Nights 5 °C or cooler 0 0.0 Nights 2 °C or cooler 0 0.0 Humidity Mean relative humidity at 9 am 59 % 49 % Mean relative humidity at 3 pm 43 % 41 % Pressure Mean MSL pressure at 9 am 1012.7 hPa 1014.5 hPa Mean MSL pressure at 3 pm 1010.8 hPa 1012.6 hPa Wind Strongest wind gust SW 50 km/h on the 23rd NW 102 km/h on the 6th in 1944 Mean wind speed at 9 am 11.7 km/h 14.4 km/h Mean wind speed at 3 pm 19.0 km/h 19.6 km/h Days with gale-force gusts 0 0.2 Rainfall Total precipitation 11.6 mm 13.0 mm Number of rain days 7 3.9 Wettest day 4.2 mm on the 11th 46.7 mm on the 3rd in 1951 Sunshine Mean daily sunshine 11.7 hours 11.6 hours Evaporation Mean daily evaporation 8.3 mm 9.0 mm Phenomenammmm Days of thunder 3 0.9 Days of hail 0 0.0 Days of frost 0 0.0 Days of fog 0 0.4 Days with mist or haze 19 17.0

page 15 Monthly Weather Review Western Australia December 2008

Daily and mean maximum temperatures for December 2008 Mean is the average of the daily maximum temperature for December 2008; it is only shown if there are sufficient days available. Anom is the difference between the mean daily maximum temperature for December 2008 and the long-term average maximum temperature for December. Decile is the decile rank of mean daily maximum temperature for December 2008 in the climate record of other December mean daily maximum temperatures; “L” indicates this is the lowest on record, and “H” it is the highest on record. Anomalies and deciles are only shown if there are sufficient years of climate record available. The lowest and highest maximum temperatures for each site for December 2008 are highlighted.

North Kimberley (01) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Kalumburu 35.7 40.0 38.0 37.5 39.4 38.9 38.4 38.3 37.0 33.3 37.1 37.2 37.4 34.1 Kuri Bay 33.4 -0.6 3 35.5 35.7 35.0 35.1 35.1 33.1 31.1 33.1 34.5 38.2 35.0 33.5 33.1 32.9 33.1 34.1 34.1 28.5 31.1 32.4 31.5 31.9 31.8 32.5 33.6 33.0 32.0 Mount Elizabeth 32.7 34.3 35.9 35.2 34.4 34.6 35.4 34.7 33.7 33.7 32.1 27.4 33.0 34.5 35.6 33.7 34.0 34.4 35.3 32.9 29.9 25.9 25.5 31.1 32.7 30.6 30.5 35.6 32.9 33.2 29.2 32.2 Wyndham 35.6 -2.7 1 39.0 39.0 39.5 39.8 39.0 41.0 41.0 40.0 40.0 35.1 36.8 36.7 38.1 39.1 35.0 35.2 34.0 28.0 26.0 27.2 27.0 33.0 36.0 36.6 30.1 34.5 36.8 38.0 37.6 31.5 32.6 East Kimberley (02) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Argyle Aerodrome 35.5 39.3 39.7 39.3 40.0 38.8 37.6 35.9 35.1 38.2 37.5 36.0 36.3 35.7 33.5 28.0 29.3 29.0 33.5 36.1 37.5 27.5 35.6 37.1 38.0 36.7 33.3 33.9 Halls Creek Airport 36.5 -1.3 3 38.7 38.6 39.9 40.0 37.1 38.9 35.4 38.1 35.2 35.4 33.7 35.5 37.1 37.8 37.3 38.3 39.9 37.6 35.9 34.7 32.8 36.4 38.7 37.4 33.1 33.7 34.5 35.4 37.2 33.6 35.0 Kununurra Aero 35.2 38.6 37.1 38.6 39.1 39.1 39.9 39.6 39.8 37.8 34.9 37.5 36.3 38.8 38.6 34.3 36.1 35.2 27.7 26.6 28.1 28.3 32.8 34.9 35.3 27.9 34.2 36.2 36.6 36.4 30.7 34.4 Warmun 36.9 -1.6 2 39.2 39.6 38.6 40.4 40.1 40.5 41.0 41.0 38.0 40.0 36.5 35.5 38.5 39.0 36.0 37.0 36.6 34.0 31.5 31.5 29.4 33.0 37.5 39.2 32.5 34.5 37.0 37.5 37.7 34.7 35.5 West Kimberley (03) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bidyadanga 34.5 -0.4 4 35.0 34.0 34.5 34.5 33.5 33.5 33.0 33.5 33.0 30.0 32.5 38.5 41.0 40.5 42.0 35.0 34.5 34.5 34.5 34.5 36.5 34.0 31.0 33.5 33.0 33.0 33.0 33.0 32.0 Broome Airport 33.8 0.0 6 31.6 33.3 33.8 35.0 33.7 33.7 33.5 33.1 33.1 30.1 32.6 34.3 39.7 39.2 41.7 35.6 34.7 34.0 33.8 34.0 34.1 34.0 26.6 34.8 32.9 32.3 32.8 32.8 32.6 33.3 31.7 Curtin Aero 37.4 39.3 39.4 40.5 39.1 40.1 39.8 39.2 39.6 36.3 30.6 36.4 38.6 39.3 40.6 40.1 39.8 39.1 42.1 39.4 38.8 32.1 28.4 35.3 35.2 32.0 35.3 36.3 36.8 37.0 34.4 Cygnet Bay 36.5 36.5 35.5 36.0 36.9 36.0 36.5 36.0 36.0 34.0 30.5 34.5 36.5 35.5 35.5 36.5 34.5 35.0 35.5 37.5 Derby Aero 36.4 38.5 37.9 38.0 37.6 38.0 38.9 38.6 39.3 38.6 34.8 30.0 35.4 39.2 39.7 38.1 37.7 37.2 37.0 39.6 40.1 38.7 32.5 29.4 32.4 33.7 32.3 34.1 35.4 35.8 35.3 33.1 Fitzroy Crossing Aero 37.8 39.5 41.3 38.3 39.2 39.5 40.9 39.8 40.8 38.8 37.7 29.2 35.8 38.1 39.3 40.0 40.6 41.2 40.2 40.8 39.6 37.8 33.2 38.2 40.7 39.0 27.1 34.9 35.3 36.9 35.2 34.4 De Grey (04) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Karratha Aero 34.7 33.7 31.3 32.1 35.2 32.6 31.2 30.6 30.6 32.5 35.5 34.8 36.2 35.9 36.8 38.9 40.4 36.2 34.2 33.3 35.4 34.3 36.0 37.7 34.1 34.6 33.9 34.1 35.5 36.3 35.8 Mandora 35.5 -1.3 2 33.7 34.0 34.3 33.8 34.0 33.2 33.0 32.0 32.0 32.9 42.7 40.7 41.0 42.5 36.0 34.8 35.4 35.0 35.2 35.7 37.4 38.0 31.6 33.5 34.6 34.8 35.0 36.0 37.0 Marble Bar 40.9 43.1 42.5 40.0 40.9 40.9 41.0 40.9 40.2 39.8 38.4 39.4 39.3 39.2 38.9 41.2 43.9 45.2 44.8 45.7 45.1 44.9 43.9 41.7 40.2 40.1 41.9 36.2 39.5 37.9 37.2 35.2 Pardoo Station 36.8 36.8 36.9 33.0 33.0 33.9 32.5 32.4 33.5 33.2 33.0 35.3 40.0 39.6 40.0 38.0 37.8 39.0 40.3 40.5 41.2 42.5 42.0 41.5 35.4 38.4 34.5 33.2 35.4 37.2 34.4 35.3 Port Hedland Airport 36.4 -0.3 5 35.0 33.7 32.1 32.7 33.1 32.7 32.1 31.8 31.1 32.4 39.9 38.9 39.5 39.8 38.2 38.7 42.5 41.4 38.8 38.0 36.8 35.7 41.0 39.7 36.0 35.2 35.8 36.1 37.4 36.9 34.0 Roebourne 38.4 -0.6 4 37.8 34.9 36.4 38.3 37.1 36.2 35.0 34.1 36.2 38.5 37.5 39.0 37.9 38.0 39.9 43.8 42.7 43.1 40.0 41.4 38.4 42.8 41.9 37.7 36.9 35.4 35.6 39.1 38.6 38.6 Fortescue (05) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Learmonth Airport 35.6 -1.2 3 33.9 30.4 30.3 33.2 32.2 32.4 32.6 31.3 32.7 31.4 33.4 36.8 36.6 36.7 38.5 37.5 35.9 37.5 37.0 35.3 38.7 38.0 39.1 39.3 41.2 40.0 34.9 35.8 36.1 37.0 38.2 Mardie 35.7 -2.0 1 32.9 31.0 31.8 34.8 33.1 31.9 31.2 31.2 33.2 36.5 38.3 38.2 39.4 39.9 38.3 42.5 38.8 33.2 33.6 36.4 34.2 33.1 37.4 37.9 38.9 34.0 36.1 37.2 36.5 37.1 38.0 Onslow Airport 35.0 -0.9 3 30.4 29.7 30.8 32.7 32.5 31.5 30.7 33.2 35.3 34.2 35.7 37.1 36.8 36.6 34.5 41.7 38.3 31.5 32.1 38.7 36.5 34.2 38.0 38.1 42.0 36.5 34.0 35.6 35.0 35.8 36.2 Onslow 34.1 -1.1 3 30.0 30.0 30.2 32.8 31.6 30.6 30.7 32.0 34.9 35.5 37.7 36.5 32.2 33.2 32.0 41.5 38.5 30.8 30.8 39.0 36.2 32.0 38.5 35.5 42.0 35.5 32.0 35.0 33.2 33.0 33.0 West Gascoyne (06) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Carnarvon Airport 29.5 +0.3 7 32.7 27.7 25.8 26.3 26.6 26.9 26.4 25.6 25.5 25.1 26.9 30.7 37.5 39.6 27.9 26.5 28.7 37.5 27.7 27.6 27.5 28.5 27.6 28.1 28.1 30.2 30.8 32.4 37.3 33.2 31.9 Denham 28.6 28.6 29.0 26.4 28.6 28.2 27.5 26.0 25.0 25.5 24.6 25.9 30.0 36.1 40.4 28.6 26.1 27.4 34.2 27.0 26.0 27.0 27.6 25.2 27.5 25.5 26.5 29.0 32.0 32.0 31.1 33.0 Emu Creek Station 39.0 35.5 32.5 36.0 36.5 37.5 36.6 33.5 33.1 37.3 40.2 41.0 41.5 38.0 38.9 42.0 41.0 40.5 41.6 42.2 43.5 40.7 41.0 39.6 41.8 Gascoyne Junction 38.3 -0.4 4 41.4 38.6 32.0 34.2 35.5 38.2 36.2 32.0 31.7 29.7 31.6 35.1 39.4 40.6 41.7 36.2 39.2 40.8 40.8 33.8 37.0 41.5 41.1 42.4 41.0 41.8 42.8 42.0 43.0 41.5 43.8 Murchison 41.5 42.5 37.0 38.5 East Gascoyne (07) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Newman Aero 39.1 40.4 41.1 40.0 39.3 39.8 41.1 40.6 41.1 40.8 38.4 32.9 33.2 34.2 36.2 38.1 41.5 41.6 40.4 42.4 42.1 42.0 43.6 41.3 39.4 40.2 39.2 37.5 35.7 37.2 35.8 35.5 Paraburdoo Aero 39.8 42.8 40.0 37.8 39.2 40.7 41.5 41.6 39.0 38.6 34.1 31.9 36.0 38.5 39.1 39.7 41.5 41.4 42.7 43.5 40.3 42.7 43.8 43.9 41.5 41.1 40.9 40.1 36.4 38.3 36.4 39.6 Murchison (07A) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Meekatharra Airport 36.7 +0.3 7 39.8 40.0 33.1 32.8 35.5 36.8 39.3 33.4 32.3 28.0 27.3 30.7 33.9 36.2 38.4 39.0 36.3 36.1 40.1 35.0 34.8 40.9 41.6 42.6 41.6 41.2 39.3 35.4 38.4 38.3 39.8 Mount Magnet Aero 35.2 35.9 37.5 31.0 31.1 31.9 33.7 38.3 29.7 28.7 25.7 26.7 30.3 33.8 36.7 39.8 36.5 34.0 34.9 40.6 30.2 32.0 37.6 40.2 40.0 40.0 37.9 37.3 38.7 39.3 40.0 41.2 Paynes Find 35.9 36.8 30.2 30.8 30.7 38.1 30.3 27.4 25.5 26.3 39.4 32.7 40.8 41.0 41.5 41.7 North Coast (08) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Carnamah 33.4 0.0 6 35.3 37.0 25.8 28.0 27.8 32.5 34.5 26.0 25.2 24.4 27.0 31.6 35.8 39.5 34.5 32.8 32.0 36.0 39.0 26.6 28.7 34.5 34.1 36.2 34.8 34.2 37.1 38.8 42.0 43.5 40.5 Dalwallinu Comparison 32.5 -0.4 4 32.4 34.9 25.7 30.1 28.6 30.9 35.7 26.1 24.9 22.9 25.6 30.8 34.1 38.2 34.6 31.1 30.2 33.4 39.4 26.3 26.9 33.1 34.6 34.8 33.9 32.8 35.5 36.3 40.4 41.5 40.4 Eneabba 36.0 25.7 27.5 28.5 33.5 26.8 25.6 23.5 28.0 30.2 40.4 32.2 33.5 35.0 37.0 35.0 35.0 36.0 33.0 36.4 41.4 43.8 45.0 Geraldton Airport 28.2 -1.3 3 28.7 29.0 23.2 25.3 25.1 26.7 25.0 24.7 24.0 23.4 24.8 26.6 34.8 38.3 26.3 27.1 28.2 33.4 26.0 25.0 26.0 28.4 26.2 28.2 25.4 27.4 28.8 30.2 37.8 38.7 31.0 Kalbarri 30.2 -0.8 3 34.6 29.9 25.4 26.1 27.5 28.1 25.9 26.0 25.0 24.5 27.0 30.9 33.9 33.9 28.3 27.1 31.7 34.3 30.1 26.0 30.0 32.4 28.6 30.7 28.5 32.7 35.1 36.0 40.4 34.5 30.7 Morawa Airport 34.8 36.8 40.0 26.8 29.2 29.4 33.5 35.4 28.0 26.6 24.3 27.5 31.3 36.4 40.1 37.2 34.3 34.2 37.0 40.6 27.4 30.6 36.0 37.2 37.5 36.4 36.5 39.4 40.9 43.3 42.3 41.5 Mullewa 33.5 -0.8 4 37.6 38.9 26.5 29.1 29.5 34.0 32.0 27.0 25.5 23.6 27.8 31.8 36.0 39.0 35.5 33.6 34.2 36.5 36.2 26.7 30.6 36.0 34.8 37.0 34.5 36.2 39.0 40.6 42.0 Wongan Hills 32.4 +0.1 6 32.4 35.7 24.9 27.0 27.5 30.5 36.4 26.0 25.0 23.0 26.1 30.5 34.4 39.4 33.9 31.3 30.5 33.6 38.9 26.1 27.1 33.4 35.0 34.5 35.4 33.0 35.9 36.4 39.5 41.7 40.0 Central Coast (09) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Badgingarra Research Stn 30.9 -1.1 4 32.6 32.7 23.2 24.8 25.7 30.6 29.9 25.6 22.7 22.3 25.6 28.4 34.4 38.1 29.6 30.5 31.3 34.2 33.0 25.0 26.9 32.5 29.8 33.5 29.4 32.4 34.8 37.4 39.8 41.3 38.4 Bickley 26.8 26.2 30.4 20.2 20.6 20.9 26.0 26.7 20.4 20.2 18.7 24.0 24.5 30.2 35.2 26.9 26.2 25.9 29.1 30.3 19.3 21.4 27.2 26.0 28.4 28.5 28.1 30.1 32.4 35.1 37.0 35.0 Gingin Aero 29.3 29.4 34.5 23.3 24.6 24.5 29.0 29.3 23.4 23.8 21.3 25.0 26.7 33.2 39.0 26.3 28.1 27.6 33.3 30.1 24.4 25.2 30.3 26.8 29.0 27.6 28.8 31.0 34.4 38.0 41.4 37.5 Gosnells City 28.9 28.0 34.0 22.8 24.0 23.5 28.0 28.5 23.5 23.0 21.5 25.5 26.5 32.2 38.0 29.0 28.0 27.0 31.5 31.0 23.5 24.5 29.0 27.5 29.0 28.8 31.0 34.0 37.5 39.5 38.0 Jandakot Aero 27.9 26.5 32.4 23.3 24.0 23.2 27.2 27.2 23.3 23.1 21.2 24.4 24.9 30.5 38.3 27.2 27.4 25.6 30.6 28.6 22.5 24.6 27.7 26.9 27.3 27.7 26.6 29.5 30.9 36.7 39.1 36.1 Jurien Bay 27.2 -0.8 3 29.3 24.2 24.8 24.0 27.8 24.7 23.0 23.0 22.0 23.6 24.4 31.5 36.0 26.7 26.7 31.8 25.0 25.0 27.2 24.6 29.4 24.6 25.5 26.0 29.5 37.6 35.8 28.0 Karnet 26.7 -1.4 3 26.1 30.6 20.2 21.2 21.4 25.4 26.6 20.6 20.5 19.6 23.9 24.0 29.6 34.1 27.9 26.7 25.8 28.7 29.9 22.2 26.5 25.6 32.6 35.1 36.7 33.9 Lancelin 26.0 -1.2 3 26.0 22.5 23.5 23.0 28.0 23.0 23.0 23.0 21.0 22.5 23.0 29.0 37.5 25.0 25.0 24.0 31.5 24.5 23.0 24.0 25.5 25.0 26.0 25.3 24.0 25.0 27.0 33.5 36.5 29.5 Medina Research Centre 26.9 25.9 31.3 23.5 24.5 23.5 25.5 26.2 22.0 21.6 21.1 24.4 25.1 30.0 38.1 26.4 24.6 29.4 27.5 23.2 22.6 25.6 24.5 25.2 25.2 24.5 26.6 30.3 35.0 38.1 37.0 Pearce RAAF 29.9 -0.3 5 29.5 34.5 23.3 25.8 24.7 29.2 29.6 24.1 24.2 21.4 25.8 27.6 33.2 39.0 27.7 28.4 27.9 32.9 32.3 24.5 25.0 30.5 28.7 30.0 30.8 30.0 31.8 35.7 38.5 40.8 38.1 Perth Airport 28.6 -0.2 6 27.7 33.3 22.8 23.9 23.5 28.3 27.8 23.0 22.8 21.8 26.0 26.0 32.1 38.1 27.8 27.8 27.0 31.8 30.0 23.8 24.6 28.7 27.5 28.0 28.8 28.2 30.3 32.8 37.5 40.0 36.3 Perth Metro 27.8 27.2 32.7 23.1 24.2 23.4 27.6 27.6 22.7 22.5 21.9 24.2 25.8 31.5 38.4 26.7 26.2 25.4 31.6 29.1 23.1 23.6 28.0 25.2 27.1 26.6 26.4 28.8 30.8 36.3 39.0 34.6 Rottnest Island 23.3 21.0 23.8 21.7 23.2 20.9 22.4 22.4 21.7 20.8 20.8 22.1 21.4 25.0 36.0 23.2 22.6 21.2 25.4 23.0 22.9 21.5 22.6 22.2 22.5 21.9 21.8 23.0 23.9 25.5 27.9 27.1 Swanbourne 26.2 24.0 29.9 23.0 23.5 22.5 27.0 25.2 22.0 21.9 21.9 23.1 23.7 27.4 37.0 24.5 25.7 24.0 29.7 24.9 23.1 24.0 26.5 24.2 24.7 24.0 23.6 25.1 29.6 34.7 38.8 32.0 South Coast (09A) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Albany Airport 21.9 -1.3 2 19.0 21.7 26.2 20.8 18.5 19.2 23.1 19.8 19.1 18.9 20.3 21.7 23.8 26.6 21.2 19.1 19.3 22.3 23.6 27.7 18.7 21.8 22.9 20.8 22.4 22.8 25.8 21.5 23.4 24.0 21.5 Albany 20.7 -1.2 2 18.5 21.0 24.0 20.6 17.8 18.5 20.0 19.6 19.4 19.2 19.7 21.0 21.3 22.5 20.6 18.8 19.0 21.0 22.0 27.7 18.5 20.8 21.2 19.6 21.1 21.0 24.6 20.0 21.5 21.0 20.5 Bridgetown Comparison 26.5 -1.0 3 25.5 30.5 25.0 23.5 22.7 26.5 29.0 22.7 20.0 22.5 24.0 25.8 29.5 33.5 22.0 24.5 23.5 29.8 30.9 19.2 20.0 26.5 25.5 28.0 26.2 27.2 29.2 30.7 31.5 34.5 30.2 Bunbury 25.8 22.8 26.9 21.7 22.7 22.1 22.7 24.9 22.6 21.2 23.7 25.3 22.3 25.9 33.0 26.4 25.7 24.9 25.9 29.8 20.6 22.5 24.0 24.6 24.9 25.9 23.1 24.8 31.3 34.8 37.7 35.5 Cape Leeuwin 21.5 -0.3 4 20.6 21.1 20.1 20.6 20.8 20.7 21.6 20.6 20.5 20.8 21.5 21.4 21.9 23.8 20.2 21.6 21.3 23.0 22.6 17.7 21.1 21.8 21.9 22.1 22.6 21.2 22.6 22.1 22.8 23.0 21.9 Cape Naturaliste 23.8 +0.3 6 22.2 24.9 22.6 23.4 21.3 22.9 21.8 22.8 21.9 21.2 22.0 22.7 24.1 28.9 22.4 22.6 21.6 24.3 23.3 19.8 21.9 23.2 23.3 22.3 23.4 22.3 23.7 25.4 29.3 31.7 33.2 Donnybrook 27.8 -0.4 4 26.6 31.3 23.5 23.4 23.1 26.1 30.1 24.0 22.4 23.2 25.9 26.1 31.2 35.9 24.5 26.2 25.3 29.7 32.1 20.1 23.2 27.8 27.9 28.0 27.6 28.4 30.5 32.5 33.5 36.6 33.6 Dwellingup 26.7 -0.4 5 26.1 30.1 20.6 21.4 21.5 25.4 27.1 19.9 19.6 20.5 24.1 24.5 29.7 35.4 28.1 26.5 25.6 28.9 31.5 19.0 20.8 26.8 24.6 28.6 27.7 27.8 29.2 31.6 34.3 36.6 34.4 Esperance 23.3 -1.2 3 20.2 20.9 23.0 24.3 20.2 20.2 25.4 21.7 21.5 17.8 19.2 20.4 24.9 22.4 35.1 21.2 21.0 22.1 30.5 34.7 21.3 21.9 30.3 21.5 23.2 21.5 25.7 21.9 22.5 22.3 22.7 Harvey 27.1 25.0 30.5 22.0 23.0 22.8 25.5 26.8 23.0 22.0 23.0 25.5 24.5 29.2 36.0 28.8 26.2 25.2 28.5 31.0 21.0 22.5 26.0 26.0 26.0 27.0 26.2 27.5 32.2 34.5 37.0 34.8 Hopetoun North 23.4 22.1 21.5 22.6 27.0 20.7 20.7 25.6 22.7 22.2 17.7 21.6 24.3 25.2 23.6 24.2 22.5 22.4 23.8 31.7 34.5 20.4 23.0 24.8 22.3 22.6 21.7 24.9 22.2 22.2 23.1 21.9 Jarrahwood 26.5 24.6 29.5 23.5 22.5 22.5 25.5 27.5 23.5 21.0 22.5 24.5 25.0 29.8 34.7 22.6 25.0 23.7 28.5 29.2 19.0 22.2 27.0 26.5 27.5 26.5 28.0 30.0 31.5 32.2 35.1 31.4 Mandurah 25.7 24.1 28.5 22.0 23.1 22.3 23.7 23.8 22.0 20.9 20.7 23.3 23.1 28.4 34.3 26.1 25.5 23.5 26.7 26.7 22.3 23.0 25.1 24.2 24.2 24.7 23.3 25.4 29.0 33.5 37.1 36.1 Manjimup 23.8 -1.0 3 22.1 25.3 23.9 21.9 19.6 23.3 26.1 20.9 19.5 19.6 21.6 21.4 27.6 32.0 19.0 21.4 20.0 27.4 27.0 19.1 17.6 23.6 23.1 25.2 24.1 24.8 26.9 27.2 28.6 30.5 27.1 North Walpole 21.1 19.3 21.0 22.8 20.2 17.5 19.5 21.9 19.6 18.8 19.1 20.7 21.5 23.0 24.4 17.5 19.2 20.0 21.9 22.2 23.0 18.9 21.3 21.8 20.0 22.7 21.7 23.9 20.9 21.9 25.3 21.7 Pemberton 23.0 -0.8 4 22.0 25.2 21.6 20.4 18.9 22.6 23.6 20.5 19.7 20.0 20.5 22.0 26.0 31.2 18.3 21.5 21.5 25.6 25.3 21.1 18.5 22.8 22.3 23.1 22.9 23.0 25.5 26.2 26.5 29.6 26.0 Rocky Gully 23.9 22.1 24.4 25.4 21.3 18.2 22.8 27.6 21.2 20.9 18.0 22.1 21.1 26.9 31.4 20.8 18.5 21.4 26.8 27.0 25.2 18.1 23.8 25.2 24.5 24.8 26.4 27.8 26.5 26.6 29.8 25.1 Shannon 21.8 20.2 24.7 21.8 18.9 17.2 21.1 23.4 19.0 17.5 18.2 19.8 19.8 24.8 29.4 18.0 19.4 18.2 25.0 24.7 22.1 17.4 21.6 21.3 22.9 22.1 21.9 24.3 25.0 25.1 28.2 23.8 Windy Harbour 22.2 20.4 19.8 19.7 20.4 21.6 23.0 21.8 22.9 21.7 23.6 20.7 21.3 Witchcliffe 23.1 21.9 24.0 20.5 21.8 19.7 22.5 22.5 21.0 20.8 21.0 22.4 22.2 25.6 30.3 22.4 22.4 21.7 25.2 23.7 21.3 23.0 22.6 22.8 23.1 22.1 24.5 25.0 25.5 28.2 24.2 North Central (10) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bencubbin 32.0 34.7 27.9 27.4 27.2 29.7 36.1 24.7 22.9 25.0 38.5 27.8 27.2 35.0 35.8 38.7 41.0 39.9 Cunderdin Airfield 32.7 30.5 36.0 27.5 27.8 28.5 29.6 38.5 27.8 26.3 23.7 28.5 30.2 34.5 38.8 36.4 30.9 30.4 32.7 39.8 27.9 26.2 32.4 36.0 34.3 35.8 32.8 35.8 35.3 38.4 42.3 38.6 Merredin 32.5 +0.7 7 31.4 35.5 29.8 28.0 27.8 29.5 36.2 27.9 26.0 24.0 25.8 28.6 34.0 36.5 38.7 30.5 30.5 31.9 38.0 28.0 27.3 32.0 35.9 34.5 36.0 33.0 35.5 35.5 39.0 41.0 39.5 Northam 31.9 -0.2 5 30.3 35.0 25.0 26.0 26.4 30.0 35.7 25.1 24.9 23.0 27.5 30.1 34.4 39.0 33.5 30.3 30.5 33.0 37.8 25.7 26.0 32.5 33.7 34.6 34.8 33.1 35.8 35.5 38.2 42.8 38.6 York 31.7 30.2 35.0 26.0 26.4 27.0 29.0 35.4 25.7 25.0 22.4 27.6 30.0 34.0 38.4 34.4 30.0 30.2 33.4 37.7 25.1 26.3 32.0 34.0 34.1 34.5 32.6 36.0 34.5 37.4 40.2 37.3

page 16 Monthly Weather Review Western Australia December 2008

Daily and mean maximum temperatures for December 2008 Mean is the average of the daily maximum temperature for December 2008; it is only shown if there are sufficient days available. Anom is the difference between the mean daily maximum temperature for December 2008 and the long-term average maximum temperature for December. Decile is the decile rank of mean daily maximum temperature for December 2008 in the climate record of other December mean daily maximum temperatures; “L” indicates this is the lowest on record, and “H” it is the highest on record. Anomalies and deciles are only shown if there are sufficient years of climate record available. The lowest and highest maximum temperatures for each site for December 2008 are highlighted.

South Central (10A) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Beverley 31.6 -0.4 5 30.0 34.4 25.4 25.8 26.2 29.2 35.6 25.4 25.4 22.6 28.2 28.8 34.2 37.8 34.4 30.8 30.2 32.6 38.6 25.2 25.8 32.0 33.2 33.8 34.6 33.2 36.0 34.8 38.0 40.4 37.4 Brookton 30.3 -0.6 4 28.8 33.2 25.2 24.2 25.3 27.4 34.0 24.9 24.1 21.4 26.3 28.9 33.1 37.3 31.6 28.1 28.8 30.9 37.0 25.0 24.9 30.7 32.4 32.8 33.2 31.6 34.3 33.4 36.7 38.8 35.4 Corrigin 30.6 +0.2 6 29.2 33.4 27.6 26.2 26.8 26.8 36.3 26.5 25.0 20.2 24.7 28.4 32.4 35.8 33.1 27.8 29.2 30.5 38.2 26.2 25.5 30.5 33.8 32.8 34.2 31.7 34.8 31.5 35.8 39.1 34.0 Hyden 30.5 -1.3 4 28.5 33.0 31.0 28.0 26.5 27.0 35.5 27.0 26.5 22.0 22.5 26.0 31.0 34.5 35.5 26.5 28.0 30.0 37.0 29.0 25.0 30.0 35.0 33.0 30.9 34.0 31.0 35.5 39.5 35.5 Jacup 25.1 23.5 23.6 24.2 24.9 21.2 21.2 31.4 22.2 23.5 16.2 19.5 22.7 28.0 30.9 24.6 22.4 23.0 24.4 34.3 29.9 21.3 26.1 29.0 24.3 25.5 26.8 31.8 23.6 27.7 26.4 22.7 Katanning Comparison 27.6 -0.8 4 26.4 30.2 28.2 24.2 23.0 25.8 32.4 23.8 23.2 18.0 23.8 25.4 30.6 34.2 24.6 24.8 25.5 28.4 35.4 25.5 22.2 27.8 29.0 29.0 29.5 31.6 29.8 32.0 34.4 29.0 Lake Grace Comparison 28.3 -1.4 3 26.0 31.0 27.8 25.5 24.5 25.5 33.7 25.4 23.5 17.0 21.7 24.8 30.5 33.5 29.5 24.8 26.0 28.7 35.7 27.4 23.0 28.5 31.9 30.4 31.4 32.7 29.8 33.0 35.8 28.7 Narembeen 31.8 0.0 6 30.0 34.0 29.2 27.3 28.0 28.5 35.1 27.8 26.6 22.0 23.9 28.5 33.0 37.0 36.3 28.4 29.6 31.5 38.1 27.6 31.5 35.2 34.0 34.8 31.6 35.1 32.9 37.6 41.0 38.0 Narrogin 28.5 -0.4 4 27.1 31.6 26.2 23.5 24.0 26.1 32.2 23.7 22.0 19.5 25.0 26.5 31.6 35.0 27.8 26.0 27.4 30.0 35.8 23.3 22.7 28.5 30.4 30.5 30.9 29.2 32.8 31.1 33.7 36.8 31.3 Ongerup 25.8 -1.4 2 24.2 26.0 27.6 24.4 21.4 23.2 31.1 22.7 22.6 17.0 20.6 23.6 28.1 32.6 22.1 21.8 24.1 27.0 35.0 27.5 21.0 26.0 29.2 25.9 28.4 31.4 25.8 29.0 30.0 25.2 Pingelly 29.9 0.0 5 28.4 32.8 25.4 24.8 25.9 27.4 34.8 24.6 23.0 20.4 26.2 27.5 32.8 36.1 30.8 28.2 29.0 30.0 36.8 24.2 24.2 30.4 31.9 32.2 32.8 30.5 34.0 33.0 36.4 38.6 34.0 Ravensthorpe 25.0 -2.3 2 23.5 25.3 24.5 25.6 20.4 21.8 30.2 21.9 21.5 18.6 19.0 23.3 27.5 30.2 27.5 18.8 22.0 25.5 34.0 31.2 20.2 24.8 31.5 25.0 21.9 25.0 31.3 23.6 27.5 29.0 24.3 Wagin 28.7 -0.5 5 26.2 31.4 28.6 24.6 24.7 26.6 33.4 25.0 23.6 18.6 25.0 26.6 31.6 35.5 26.5 25.5 27.1 30.4 37.0 25.7 23.2 28.2 30.5 30.2 30.3 29.4 32.8 30.8 33.2 35.6 31.2 Wandering 29.6 28.7 33.1 24.6 24.4 24.6 27.1 33.0 23.6 22.0 22.1 26.5 28.6 33.3 37.4 30.2 27.6 28.5 30.9 35.8 23.4 23.6 30.0 31.0 32.2 31.9 30.4 33.5 33.0 35.7 37.8 34.1 Eucla (11) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Balladonia 29.1 -1.1 3 25.2 28.8 36.9 30.7 28.9 24.8 30.5 36.0 27.1 22.3 17.0 20.9 27.8 30.3 35.6 25.1 24.5 25.1 31.4 36.4 27.2 29.1 32.5 26.4 32.5 30.5 34.0 27.7 31.6 32.2 33.1 Eucla 25.1 +0.4 7 21.8 25.3 33.4 26.0 25.5 21.8 27.0 30.7 23.7 21.2 18.8 19.7 20.7 24.4 24.8 27.5 23.0 22.4 27.9 36.0 29.7 23.5 26.1 29.3 28.1 21.8 23.3 24.9 22.9 23.5 24.4 Eyre 25.1 -0.1 6 23.4 23.9 37.0 24.8 25.5 22.0 25.2 33.2 23.3 21.0 18.8 21.0 23.3 24.5 30.0 26.0 23.8 22.7 26.5 30.4 26.4 23.8 29.7 23.2 24.0 24.5 25.0 24.8 23.5 24.0 24.2 Forrest 30.3 28.0 31.5 34.6 32.5 35.0 26.0 28.7 26.6 28.7 27.9 23.1 22.1 24.8 28.4 33.2 34.7 29.0 26.3 31.1 39.8 35.1 28.8 27.5 35.6 33.6 27.0 31.6 30.1 30.4 32.6 33.6 South East (12) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bulga Downs 35.0 38.0 35.5 33.5 31.3 34.2 32.2 37.1 30.9 30.8 27.7 25.6 28.4 32.4 35.2 38.7 37.0 32.5 32.8 37.6 34.6 32.1 33.5 40.6 39.9 40.9 37.0 37.7 39.0 38.5 38.9 40.8 Kalgoorlie-Boulder Airport 31.8 -0.1 5 30.3 32.6 36.8 30.4 32.0 28.3 33.5 32.0 30.6 28.0 18.5 23.5 29.9 32.3 38.3 26.6 27.4 28.6 34.2 39.0 29.2 31.0 35.1 32.4 35.1 31.4 34.3 33.2 35.1 36.0 40.5 Laverton Aero 34.1 34.0 36.4 36.2 32.1 35.2 29.8 34.0 36.5 33.3 33.5 25.6 26.1 30.4 33.4 36.5 40.2 31.7 30.6 35.7 40.0 32.6 29.1 39.1 36.8 36.5 31.1 34.2 35.5 35.7 36.6 37.9 Leinster Aero 35.5 37.6 38.5 35.1 32.1 34.8 32.5 37.0 35.2 32.4 30.0 26.4 28.1 31.8 34.7 37.2 39.6 33.8 32.0 38.5 39.5 33.0 36.9 39.4 41.3 37.4 36.0 37.8 38.2 38.8 40.0 Leonora 35.4 +0.1 5 35.6 35.6 36.6 32.0 35.1 31.2 36.7 34.6 33.4 31.4 25.8 28.0 32.4 35.2 38.7 38.8 33.2 31.4 38.2 40.5 34.2 32.0 41.2 40.1 40.5 33.6 36.6 37.1 37.6 38.1 40.5 Norseman 29.7 28.1 27.0 32.0 27.7 26.7 22.0 18.1 27.0 36.0 29.0 33.5 34.1 34.0 34.5 Salmon Gums Res.Stn. 27.8 -1.1 3 25.3 28.7 34.5 27.5 24.5 23.1 31.9 23.3 23.7 19.2 19.3 22.9 27.3 30.2 37.9 22.7 24.0 26.0 32.8 36.1 21.7 26.2 34.4 27.6 30.0 27.8 32.0 26.2 30.8 32.6 31.8 Southern Cross Airfield 32.6 31.7 35.1 32.4 28.3 28.9 29.2 35.8 27.8 27.3 26.5 23.2 27.7 32.7 36.2 39.2 30.6 29.5 31.2 37.1 29.3 27.6 32.1 38.0 34.0 37.0 33.6 35.5 34.9 37.6 39.1 41.5 Yeelirrie 36.3 +0.1 6 39.3 38.0 34.4 33.4 35.9 34.5 37.3 35.7 34.0 30.6 27.5 29.0 32.2 35.0 37.3 40.5 35.0 41.0 41.5 42.0 39.6 37.6 36.2 37.9 38.0 39.2 North East (13) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Balgo Hills 37.7 40.5 41.0 40.3 41.9 39.2 38.4 32.2 39.1 37.1 37.5 31.4 35.9 35.3 36.6 37.0 40.2 40.0 39.5 36.6 39.3 40.7 38.3 37.2 37.2 35.7 35.4 35.7 Carnegie 40.2 42.0 39.9 35.4 40.4 38.2 30.4 27.9 30.3 33.4 38.0 39.2 Giles Meteorological Office 34.0 -1.8 1 39.2 40.7 39.7 31.7 31.9 26.3 30.5 32.9 38.6 37.6 30.5 26.6 26.6 29.2 30.8 35.0 38.8 32.4 37.0 39.3 37.2 38.4 36.7 35.0 37.1 29.0 29.2 31.1 33.8 34.6 35.9 Telfer Aero 40.3 +0.2 5 43.6 43.4 40.8 41.4 41.4 41.7 41.7 41.3 42.1 39.8 38.6 36.2 35.5 36.8 39.8 42.5 43.4 43.3 42.4 43.0 43.3 42.7 40.6 40.6 41.7 42.5 32.5 37.7 37.6 35.1 36.9 Warburton Airfield 35.4 -1.2 2 39.3 41.7 35.9 34.6 35.6 32.7 32.4 37.5 38.9 39.7 35.0 28.4 31.6 31.0 33.7 37.7 40.8 32.4 38.5 41.6 37.3 34.8 32.1 34.5 39.5 26.4 33.5 34.6 33.9 35.0 36.1 Wiluna 37.0 +0.1 6 40.5 40.2 37.0 35.0 36.0 36.5 38.6 36.5 35.7 31.1 28.0 29.0 31.1 34.4 38.0 39.9 35.5 34.2 40.0 40.1 36.7 41.8 42.0 41.5 40.5 40.0 35.9 36.6 37.8 38.5

page 17 Monthly Weather Review Western Australia December 2008

Daily and mean minimum temperatures for December 2008 Mean is the average of the daily minimum temperature for December 2008; it is only shown if there are sufficient days available. Anom is the difference between the mean daily minimum temperature for December 2008 and the long-term average minimum temperature for December. Decile is the decile rank of mean daily minimum temperature for December 2008 in the climate record of other December mean daily minimum temperatures; “L” indicates this is the lowest on record, and “H” it is the highest on record. Anomalies and deciles are only shown if there are sufficient years of climate record available. The lowest and highest minimum temperatures for each site for December 2008 are highlighted.

North Kimberley (01) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Kalumburu 24.3 25.2 26.0 25.3 24.0 25.2 26.4 26.0 25.0 27.0 24.6 25.4 25.3 23.6 23.9 Kuri Bay 25.8 26.9 24.0 24.0 27.5 25.9 27.5 25.5 26.0 26.2 27.0 24.6 Mount Elizabeth 22.1 23.0 22.6 20.8 21.8 24.1 21.4 23.5 22.8 23.9 21.9 22.1 21.3 20.2 18.9 23.1 21.8 23.9 22.0 22.5 23.4 21.9 20.2 21.0 21.4 22.5 21.9 22.8 21.9 22.7 24.0 20.5 Wyndham 26.3 -0.7 3 27.3 27.2 25.6 30.0 30.0 29.4 30.5 30.0 28.5 25.0 27.0 24.0 28.5 27.6 25.9 25.4 25.2 24.0 24.0 22.5 24.0 24.0 23.8 25.3 25.9 26.5 25.5 27.0 28.3 23.6 24.2 East Kimberley (02) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Argyle Aerodrome 25.3 27.7 27.9 23.8 29.3 24.4 24.0 27.7 26.0 25.2 25.1 26.0 24.8 24.8 23.7 23.9 24.4 24.5 25.3 24.1 23.0 25.4 27.2 27.3 23.8 24.2 Halls Creek Airport 24.6 -0.1 6 26.9 25.1 24.1 26.9 27.9 25.0 23.9 25.3 26.7 22.9 22.3 22.5 24.1 24.4 24.6 22.8 24.5 25.6 25.7 25.9 22.6 24.7 23.7 25.4 26.6 20.9 24.7 24.7 25.4 22.8 24.4 Kununurra Aero 25.1 26.7 24.0 24.0 27.0 27.1 26.4 27.5 27.5 26.2 24.6 25.6 24.7 26.5 25.9 22.6 24.8 26.5 24.0 23.2 23.5 24.9 23.6 23.8 24.2 24.1 23.4 25.1 25.8 26.9 23.4 24.1 Warmun 25.7 +0.5 7 27.9 27.9 24.6 27.5 27.9 27.9 30.5 28.0 29.0 24.0 25.0 25.0 26.0 24.0 25.5 24.0 25.0 23.0 25.5 24.5 24.0 24.0 23.5 26.0 25.0 23.5 25.0 27.0 27.3 24.0 24.0 West Kimberley (03) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bidyadanga 26.4 +0.7 9 27.5 28.0 26.5 27.5 27.5 27.5 29.5 29.0 27.0 27.0 28.0 25.0 22.5 26.0 21.0 24.0 27.0 26.0 26.0 28.0 25.0 28.0 24.0 23.5 25.0 27.0 27.5 28.0 28.0 24.0 Broome Airport 26.4 0.0 5 26.8 27.8 25.8 27.4 27.9 28.0 28.1 28.0 28.1 28.2 27.1 26.9 25.1 21.4 21.1 24.4 26.2 28.3 27.9 27.4 28.9 28.8 23.7 23.7 24.2 27.3 26.5 28.1 28.1 24.4 24.0 Curtin Aero 25.2 26.3 26.0 24.5 25.4 26.4 25.1 26.6 27.1 26.3 23.0 23.2 24.9 25.9 26.9 26.9 25.2 23.7 24.9 25.4 26.6 26.6 23.2 23.1 24.7 26.3 24.9 25.0 24.8 23.9 23.1 Cygnet Bay 25.0 26.7 25.0 24.0 25.0 26.0 25.7 26.5 26.0 25.2 24.8 24.2 25.8 22.9 22.2 25.5 26.2 26.6 27.5 26.5 28.0 Derby Aero 26.0 27.2 23.2 25.8 26.5 27.6 27.6 27.6 27.9 27.5 25.7 23.6 23.6 25.5 27.3 24.7 28.1 28.1 25.5 26.4 24.7 27.5 27.2 23.7 23.8 25.8 26.8 26.5 26.8 26.4 24.4 24.5 Fitzroy Crossing Aero 26.1 26.2 28.2 22.0 27.2 28.4 27.4 27.8 28.1 28.7 27.7 24.9 24.4 23.8 22.5 25.1 26.1 26.2 27.8 26.7 28.6 29.7 27.7 26.6 27.0 26.5 21.9 21.7 25.4 25.7 24.2 25.2 De Grey (04) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Karratha Aero 24.4 26.0 25.6 23.5 24.1 24.5 24.3 23.9 23.7 22.8 22.4 21.0 18.7 19.2 20.7 20.9 25.7 25.2 23.9 24.3 24.9 24.5 24.7 27.6 29.0 27.6 26.4 27.1 27.8 24.6 27.5 Mandora 22.5 -1.8 1 23.1 22.8 22.1 20.8 23.5 23.0 24.0 24.5 24.5 23.2 17.5 14.5 22.0 17.0 18.6 23.8 26.8 22.5 22.2 25.0 24.2 23.2 23.0 22.6 25.1 23.1 24.0 23.4 Marble Bar 25.7 26.8 26.8 25.8 25.5 25.5 26.1 23.7 24.0 23.1 23.1 22.0 20.3 23.9 25.6 26.3 24.3 23.8 27.3 30.9 30.3 29.2 26.6 29.7 29.3 27.8 28.6 24.8 25.0 23.5 25.9 22.3 Pardoo Station 24.2 25.9 25.4 24.2 23.8 24.3 24.6 25.0 25.4 24.6 23.8 22.1 18.0 19.2 19.4 20.0 21.1 23.2 22.8 27.2 25.4 25.4 25.6 26.6 28.0 25.8 25.9 25.6 26.9 25.8 23.6 25.6 Port Hedland Airport 24.1 +0.2 6 25.1 25.6 24.1 24.6 24.9 23.4 23.5 25.0 23.3 24.1 20.5 19.3 21.1 21.5 20.1 21.5 24.5 24.2 25.7 25.1 23.9 23.5 26.8 26.8 27.6 25.9 26.2 27.0 25.8 24.9 23.1 Roebourne 23.8 -1.1 2 24.9 24.6 23.6 23.5 23.5 23.5 22.0 23.5 22.1 22.0 22.5 19.0 18.8 22.1 21.4 22.1 25.9 22.1 23.0 23.6 23.5 24.5 28.5 29.3 27.3 23.5 27.5 27.5 24.8 23.0 Fortescue (05) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Learmonth Airport 19.7 -1.0 3 22.2 22.8 19.9 18.0 19.2 18.4 18.7 16.3 17.7 17.1 14.2 16.5 18.3 17.7 17.1 18.9 18.3 19.6 21.3 18.7 18.1 20.7 21.1 20.6 21.3 20.0 21.7 24.1 22.8 24.0 24.8 Mardie 22.8 0.0 6 24.4 24.8 21.8 21.5 22.4 20.9 21.1 20.8 19.6 20.2 20.6 17.7 18.8 21.3 20.2 22.2 22.1 21.4 21.4 22.8 22.3 22.6 24.6 26.2 28.5 26.5 26.0 24.8 25.8 25.5 28.0 Onslow Airport 21.8 -0.3 5 23.1 24.3 21.8 20.7 21.0 19.7 19.8 18.8 19.4 19.2 18.4 19.4 19.6 20.2 20.2 23.2 20.1 20.7 21.0 19.1 20.9 20.8 23.7 24.3 27.0 25.8 24.5 24.7 25.7 23.8 26.3 Onslow 20.8 -0.8 3 22.4 23.5 20.3 19.4 19.5 18.5 18.9 17.5 18.0 18.0 17.0 18.2 18.3 18.6 19.0 22.0 19.0 19.5 20.3 19.0 18.3 20.5 22.5 23.0 26.0 24.8 24.0 24.0 25.0 23.0 25.5 West Gascoyne (06) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Carnarvon Airport 20.1 -0.5 4 20.8 21.8 20.7 17.0 19.5 18.8 20.0 20.0 18.0 18.3 15.9 18.2 18.9 18.7 22.2 20.8 19.9 20.9 21.3 20.1 18.7 19.5 20.3 19.8 20.2 19.0 20.8 22.7 22.1 24.3 24.1 Denham 20.6 20.4 21.5 21.0 19.5 20.5 19.8 20.3 19.0 19.9 18.8 17.1 18.8 19.5 22.1 22.0 21.5 20.5 20.0 21.2 18.5 18.8 20.5 20.3 21.9 20.0 20.0 21.2 22.7 23.4 24.0 24.0 Emu Creek Station 18.0 18.0 20.6 20.4 21.0 21.9 19.1 20.4 19.5 20.0 21.9 24.2 23.5 25.5 25.8 23.2 25.0 Gascoyne Junction 21.2 0.0 5 25.3 20.5 17.5 18.9 18.5 18.8 16.8 17.2 16.4 15.2 18.5 22.6 21.2 22.7 19.5 19.2 22.5 22.2 18.7 19.7 20.5 22.5 22.5 22.0 22.2 25.6 28.0 28.0 26.2 27.6 Murchison 21.5 15.5 20.5 16.5 East Gascoyne (07) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Newman Aero 24.6 29.7 26.2 23.0 22.6 26.2 26.1 25.2 25.6 21.8 22.0 19.5 19.4 20.8 19.1 23.5 20.2 24.7 27.0 26.1 30.8 24.6 27.9 30.2 26.5 29.0 24.7 24.1 23.0 23.4 24.4 24.2 Paraburdoo Aero 23.7 27.1 25.4 23.4 22.7 24.9 23.4 24.0 23.3 18.8 20.2 19.8 22.0 24.1 20.8 22.2 21.3 21.3 23.1 24.1 25.9 22.5 25.2 25.4 28.3 26.2 27.8 24.1 22.5 25.4 24.9 24.3 Murchison (07A) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Meekatharra Airport 22.1 0.0 5 24.5 25.8 21.5 17.9 21.4 20.4 23.9 19.8 18.1 16.5 14.5 16.8 18.5 19.7 23.6 23.5 23.0 22.7 22.2 22.7 18.7 21.0 25.2 26.2 26.2 26.1 24.8 21.1 24.2 26.7 26.6 Mount Magnet Aero 20.3 21.3 21.3 20.3 14.9 16.7 16.8 21.3 15.2 15.9 14.8 13.3 16.2 15.9 21.2 24.1 20.9 22.5 19.8 23.1 16.5 15.4 18.5 23.3 21.6 24.0 22.0 25.2 25.0 26.6 30.0 25.6 Paynes Find 19.2 23.3 18.5 13.6 14.5 14.5 14.2 12.7 13.2 11.7 13.8 19.1 18.0 16.1 North Coast (08) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Carnamah 15.3 -0.6 4 11.6 15.4 16.8 14.2 11.5 12.2 13.1 15.2 10.0 10.8 13.2 13.8 20.0 17.0 15.8 15.0 13.7 16.0 14.9 13.5 13.7 14.8 14.4 14.6 15.0 14.6 18.1 22.0 26.7 21.5 Dalwallinu Comparison 15.3 -0.7 3 13.4 17.4 17.0 13.5 12.1 12.4 17.1 12.9 10.6 10.1 11.1 9.9 14.6 19.9 17.8 15.9 14.9 14.4 17.9 13.5 11.4 13.4 12.9 15.8 15.1 16.0 20.0 22.0 23.3 22.6 Eneabba 11.8 15.3 14.9 12.0 12.5 12.7 13.6 10.3 11.1 14.3 15.3 16.4 17.0 14.0 11.5 14.5 14.0 14.3 18.7 25.2 20.0 Geraldton Airport 15.6 -0.7 3 14.5 15.6 18.7 15.2 13.8 12.0 15.8 18.2 15.2 16.0 13.6 13.7 12.8 15.7 16.8 19.2 16.0 12.0 14.3 18.1 13.0 13.9 16.6 13.4 17.0 15.3 14.2 16.1 16.6 19.2 19.9 Kalbarri 16.9 -0.3 4 17.5 18.0 19.0 12.5 13.4 16.3 16.5 18.5 14.1 11.8 11.7 17.1 16.0 17.5 19.4 18.5 19.0 15.2 14.5 16.5 13.2 17.4 17.7 16.9 17.7 18.1 18.2 18.9 21.5 21.2 21.2 Morawa Airport 15.8 14.5 19.6 17.5 13.2 12.1 12.4 14.9 15.4 11.4 9.7 11.6 14.4 16.7 17.9 16.6 15.3 13.7 14.7 14.6 12.7 14.7 15.0 14.2 14.9 15.7 16.5 19.9 24.3 27.7 20.9 Mullewa 15.7 -1.2 2 15.7 20.6 17.0 12.9 13.4 13.6 13.8 15.1 11.9 10.1 10.8 13.9 16.2 19.2 18.0 17.2 14.8 15.4 15.8 13.3 12.5 15.3 14.2 13.5 13.9 14.2 17.7 21.2 25.6 23.0 Wongan Hills 15.1 -0.6 3 12.9 15.1 17.4 14.0 11.7 12.8 17.3 14.5 10.5 10.0 10.9 12.0 14.7 19.0 18.1 16.0 14.4 14.4 15.5 15.0 12.1 12.9 14.0 15.4 15.7 15.4 14.6 19.6 20.2 21.6 20.5 Central Coast (09) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Badgingarra Research Stn 13.8 -1.0 2 11.5 13.9 14.9 13.4 9.6 11.9 12.6 14.2 9.1 7.3 9.9 12.1 13.9 18.9 16.9 15.2 14.4 13.4 14.6 13.3 10.1 12.9 14.2 13.3 13.9 13.8 13.4 16.9 18.4 21.6 18.5 Bickley 13.2 10.5 12.2 15.2 13.8 11.4 10.6 12.0 10.8 10.4 10.4 9.9 12.1 14.2 17.6 16.4 14.3 11.2 12.0 14.1 15.7 12.1 11.6 12.9 12.5 12.8 12.3 14.1 15.6 15.9 16.4 17.6 Gingin Aero 13.0 10.2 9.8 16.3 13.9 13.3 8.8 7.8 14.3 12.2 8.3 10.2 10.2 12.2 17.0 16.5 14.9 13.5 11.5 14.8 15.4 10.7 8.7 11.6 11.6 15.3 14.6 21.4 18.5 Gosnells City 15.3 13.0 15.0 17.2 15.8 14.5 13.0 14.5 14.0 12.0 12.0 11.0 13.0 15.1 20.4 19.5 17.0 15.0 16.2 14.5 17.2 15.5 13.0 12.8 14.0 12.5 13.5 16.5 20.2 21.0 21.5 Jandakot Aero 14.1 10.9 16.9 17.0 11.5 11.0 11.8 8.9 10.4 10.8 12.6 13.1 18.3 16.5 15.3 13.2 14.8 13.1 18.5 15.6 10.8 12.6 12.9 11.9 13.3 12.9 15.3 16.7 20.5 21.3 Jurien Bay 13.9 -1.6 1 12.2 10.4 11.6 15.4 12.3 14.4 18.2 15.0 14.0 11.4 13.2 14.0 16.0 17.0 15.0 14.2 14.0 14.4 12.0 12.6 8.6 14.0 15.0 12.5 15.0 16.0 16.0 16.0 Karnet 10.0 12.3 14.2 13.6 9.6 10.6 12.8 10.2 9.1 6.9 10.4 11.1 13.6 13.7 15.4 11.9 13.0 13.2 13.1 10.9 12.8 13.1 17.5 17.2 Lancelin 15.8 -0.4 4 12.5 19.0 17.0 14.0 13.0 17.0 17.0 15.0 12.5 13.0 16.0 14.5 16.0 19.5 16.5 13.4 12.0 15.3 19.0 17.5 13.5 18.3 14.0 17.5 15.5 15.0 18.0 15.0 18.0 19.0 Medina Research Centre 14.7 11.7 11.4 17.6 17.6 13.3 13.0 11.4 13.3 10.6 11.5 10.9 13.6 15.0 17.0 19.4 13.0 15.0 14.0 18.8 15.5 12.5 14.0 13.9 14.2 13.9 13.4 15.9 18.0 19.9 21.1 Pearce RAAF 13.6 -0.8 4 10.3 9.9 16.8 13.8 13.9 10.1 8.8 14.0 12.8 10.5 8.5 11.8 12.9 17.4 16.8 15.8 14.8 12.4 15.7 15.0 10.8 11.3 13.3 9.7 12.0 11.8 15.6 18.7 20.9 21.7 Perth Airport 14.6 -0.2 5 12.9 11.3 16.1 14.1 14.6 11.5 11.8 14.2 11.5 11.2 11.3 13.4 13.6 18.1 18.4 17.6 14.6 15.6 13.4 18.9 15.9 10.9 13.0 14.1 13.4 13.3 12.5 15.6 17.9 20.4 21.4 Perth Metro 15.6 12.8 12.2 18.3 17.0 15.0 14.1 12.6 14.7 12.6 12.7 12.9 14.0 15.6 18.8 19.8 17.6 14.5 15.6 14.2 18.3 16.0 13.6 14.5 15.1 14.3 14.7 14.9 17.0 17.8 20.7 21.6 Rottnest Island 17.2 14.8 16.2 18.1 17.9 15.6 15.0 17.6 16.6 14.5 12.1 14.0 16.6 17.9 19.6 18.8 18.3 16.1 16.5 18.1 18.0 17.3 16.2 17.5 16.6 16.9 16.7 17.4 18.6 19.8 21.3 21.4 Swanbourne 15.4 12.3 12.9 18.4 16.8 15.5 13.4 13.5 14.3 13.1 11.7 12.4 14.0 15.1 19.5 19.1 16.3 14.5 14.4 16.3 17.9 15.9 13.5 14.7 13.9 14.7 14.1 14.1 16.0 16.9 21.1 21.4 South Coast (09A) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Albany Airport 12.2 -0.2 5 10.2 13.9 14.6 11.8 11.8 12.3 9.6 12.6 8.2 12.2 12.5 14.2 14.7 11.4 15.9 14.3 13.7 9.3 13.6 16.8 13.9 8.4 9.0 8.4 9.1 8.5 16.6 14.2 8.0 13.2 16.0 Albany 14.5 +0.6 7 13.3 14.7 16.5 14.1 13.0 14.8 14.0 16.3 10.8 13.6 14.6 14.6 16.5 14.6 17.5 14.0 14.5 12.0 15.8 18.9 15.5 10.5 12.0 14.0 12.2 13.4 17.5 12.0 16.5 16.9 Bridgetown Comparison 11.1 +0.6 7 5.1 10.9 15.7 14.6 11.5 6.4 9.5 9.9 6.8 9.0 9.4 10.5 11.0 13.5 16.6 11.5 7.5 7.0 13.4 17.0 13.0 7.7 8.9 9.0 8.9 8.8 15.4 15.9 12.0 13.5 15.0 Bunbury 12.5 7.0 12.7 14.3 17.3 9.5 10.1 10.1 9.7 10.5 10.0 11.4 10.9 10.6 16.2 16.4 13.0 11.2 9.6 13.2 17.0 14.9 9.3 12.8 10.9 11.5 10.3 12.4 15.8 14.8 16.4 16.7 Cape Leeuwin 15.8 +0.1 6 15.4 15.2 16.2 16.3 14.1 13.9 14.3 15.5 15.2 13.5 16.1 15.6 18.1 17.0 17.8 16.6 15.7 14.3 17.2 16.9 15.0 14.2 14.5 15.5 15.7 14.9 17.8 16.8 16.8 16.7 17.6 Cape Naturaliste 13.3 -0.6 4 11.5 12.4 16.2 15.3 14.2 10.4 11.6 13.4 10.1 11.0 12.9 12.5 14.7 15.3 16.8 12.5 11.3 10.6 14.0 15.7 13.9 11.2 13.5 11.4 12.5 11.7 16.8 15.6 13.9 14.4 15.4 Donnybrook 12.3 0.0 5 9.0 12.9 16.2 14.9 9.8 11.1 11.1 10.1 8.9 9.6 9.4 9.8 12.6 16.3 16.7 13.1 9.5 10.1 11.6 17.2 14.2 7.5 11.6 9.7 10.5 10.1 14.1 17.1 14.4 15.0 16.2 Dwellingup 12.2 -0.3 5 9.6 11.8 13.8 14.5 11.1 9.6 10.3 10.4 9.4 7.8 9.4 10.9 12.2 17.1 13.5 14.3 10.7 10.9 13.0 15.4 13.1 9.1 11.8 12.3 11.7 11.7 10.9 14.3 14.5 15.8 16.4 Esperance 14.2 -0.1 5 11.8 11.9 15.1 15.1 15.4 13.9 10.1 17.7 13.0 14.3 13.8 11.3 12.9 16.5 14.9 16.4 15.5 13.7 14.1 18.6 17.6 13.3 13.4 16.1 13.3 13.1 11.5 16.1 11.2 13.1 15.9 Harvey 12.1 6.8 12.8 13.8 14.8 10.0 11.4 12.5 8.8 9.2 9.2 7.8 9.0 12.0 18.8 14.5 15.0 10.0 13.4 11.0 12.0 15.8 10.8 12.5 10.0 8.8 10.0 11.4 13.4 15.8 17.0 17.8 Hopetoun North 13.8 14.0 11.4 14.9 13.6 14.2 14.5 9.3 16.5 12.5 13.9 14.0 10.8 12.5 16.3 14.5 15.4 15.3 10.2 11.4 20.8 15.8 14.4 10.6 15.2 10.8 14.9 12.3 16.5 10.3 13.1 17.8 Jarrahwood 9.2 4.4 10.0 15.5 13.0 7.2 5.0 6.7 7.0 6.5 6.5 8.2 7.0 10.0 11.7 10.5 9.4 5.5 5.5 10.5 15.9 13.0 4.5 7.5 6.0 6.5 7.2 15.5 15.5 10.5 10.7 10.9 Mandurah 16.7 13.7 15.4 17.8 18.0 15.7 14.3 16.3 15.5 14.4 14.4 14.7 15.4 16.8 21.8 18.7 18.0 15.7 15.4 17.5 18.5 16.5 14.8 16.3 15.6 15.5 15.4 16.3 17.8 19.3 20.4 20.3 Manjimup 11.1 -0.5 4 9.2 10.2 13.6 12.9 10.8 8.4 8.8 11.3 8.0 9.2 11.4 10.4 12.8 12.3 15.4 11.3 8.8 8.7 12.4 15.2 11.7 7.6 11.2 9.1 10.2 9.4 15.2 12.6 10.3 12.7 14.1 North Walpole 12.5 12.3 11.0 13.9 13.4 11.6 11.6 9.6 12.0 10.5 10.4 12.8 13.2 14.8 11.6 16.3 14.2 13.1 11.2 12.2 17.0 13.2 9.1 10.5 10.4 11.3 9.8 16.4 14.5 10.1 14.6 15.5 Pemberton 11.7 -0.2 4 11.0 9.6 14.6 13.2 11.4 8.5 8.7 10.7 9.5 8.9 12.2 11.0 13.0 13.5 15.8 12.9 10.4 11.3 12.9 16.0 12.6 7.7 10.8 9.2 9.2 9.5 16.0 14.5 10.9 12.6 13.8 Rocky Gully 10.5 7.1 9.8 13.6 12.1 10.1 7.1 8.2 10.8 8.2 8.9 10.8 12.6 12.8 12.1 14.6 12.3 8.0 7.6 10.7 13.4 11.7 7.0 9.4 8.1 8.6 8.1 14.7 12.8 7.8 12.0 14.5 Shannon 10.8 9.6 8.0 14.2 12.0 11.1 7.5 9.1 9.6 9.6 8.5 10.3 11.5 12.3 12.7 15.5 11.3 10.6 7.6 11.1 15.7 11.9 6.9 9.2 7.7 8.6 8.3 15.3 12.4 8.9 12.6 14.1 Windy Harbour 12.2 12.6 12.6 13.7 10.5 12.9 17.0 14.4 8.4 16.5 15.1 9.3 15.3 Witchcliffe 11.1 9.1 10.4 14.5 15.1 9.7 6.9 10.0 13.0 8.4 9.2 10.8 8.9 12.5 13.4 16.3 13.4 8.9 6.2 12.8 15.8 7.3 7.8 9.3 7.1 7.2 17.0 13.9 11.7 13.2 14.4 North Central (10) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bencubbin 12.0 16.7 21.2 13.4 11.8 12.9 15.0 10.0 11.7 11.9 11.0 15.5 13.4 15.3 20.5 20.4 21.0 22.1 Cunderdin Airfield 14.3 12.2 12.2 16.7 13.0 9.9 12.6 14.4 14.4 8.6 9.1 11.7 10.5 15.2 17.4 17.7 16.7 12.9 13.6 12.9 15.4 14.0 14.2 12.5 15.0 16.4 14.7 16.4 19.7 16.5 19.1 18.7 Merredin 16.6 +0.9 8 11.8 16.0 20.0 13.3 11.9 11.8 14.8 14.3 10.8 11.8 12.2 11.0 15.3 24.0 18.5 16.4 13.0 13.4 18.5 15.8 15.7 14.4 18.0 15.5 18.0 20.5 21.0 23.5 24.0 25.0 25.5 Northam 14.8 -0.5 4 12.5 14.3 18.0 13.5 13.0 12.0 13.6 14.5 10.0 8.7 12.0 13.5 14.8 18.8 18.5 17.5 12.7 13.5 15.5 16.7 13.8 14.0 14.5 15.0 15.4 14.6 15.2 19.3 17.5 18.0 19.0 York 13.8 12.2 13.5 17.2 12.5 9.6 11.5 12.6 14.5 10.0 8.1 12.0 10.5 14.7 18.0 16.2 15.6 11.0 12.5 12.5 16.5 14.5 13.1 13.8 15.0 14.7 13.6 13.4 18.2 16.0 16.9 18.5

page 18 Monthly Weather Review Western Australia December 2008

Daily and mean minimum temperatures for December 2008 Mean is the average of the daily minimum temperature for December 2008; it is only shown if there are sufficient days available. Anom is the difference between the mean daily minimum temperature for December 2008 and the long-term average minimum temperature for December. Decile is the decile rank of mean daily minimum temperature for December 2008 in the climate record of other December mean daily minimum temperatures; “L” indicates this is the lowest on record, and “H” it is the highest on record. Anomalies and deciles are only shown if there are sufficient years of climate record available. The lowest and highest minimum temperatures for each site for December 2008 are highlighted.

South Central (10A) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Beverley 14.1 -0.2 5 11.2 12.8 17.4 13.2 11.6 11.8 13.2 14.4 11.6 9.8 12.6 12.2 14.6 18.0 17.2 15.6 11.6 12.6 13.4 16.6 14.8 13.2 13.6 15.6 15.0 13.4 14.6 17.6 15.2 15.6 18.2 Brookton 13.7 +0.3 6 10.2 11.4 15.1 12.6 11.5 10.6 12.5 14.4 12.0 8.6 12.6 11.0 14.0 17.4 16.5 16.0 10.4 12.1 15.9 18.0 14.2 11.9 13.1 14.1 14.1 15.5 14.1 16.1 14.5 16.4 17.2 Corrigin 13.9 0.0 6 10.7 12.8 16.6 12.9 10.5 11.7 11.7 13.9 12.5 12.7 12.6 10.9 14.0 16.5 17.6 15.2 11.2 11.8 14.4 17.6 15.0 13.0 13.9 14.5 14.9 13.8 14.2 17.8 13.3 14.7 17.5 Hyden 13.6 -0.2 5 16.0 13.0 11.0 9.5 12.0 11.5 15.5 14.5 12.5 9.5 8.5 12.5 16.0 21.5 15.0 9.5 11.0 14.5 19.0 15.5 13.0 13.5 15.0 12.5 12.0 16.8 12.0 13.5 17.0 Jacup 11.5 7.0 10.8 14.1 11.1 11.7 11.8 10.0 13.6 8.8 11.7 11.4 9.5 11.0 11.7 15.3 12.8 10.8 7.6 12.5 20.3 13.6 6.7 11.0 11.1 7.9 12.6 10.7 13.6 7.9 12.2 15.3 Katanning Comparison 11.8 -0.4 4 7.0 11.0 14.6 14.0 10.4 10.4 9.4 13.5 11.8 10.6 11.4 11.6 10.6 14.0 15.6 13.4 7.4 8.9 12.2 15.4 12.6 10.6 11.4 11.8 10.9 11.8 12.0 11.0 13.0 15.2 Lake Grace Comparison 13.1 -0.3 4 9.5 12.4 15.7 11.8 13.3 12.6 11.5 14.5 13.0 12.3 12.6 10.5 12.5 15.7 17.2 13.7 10.4 10.7 15.7 15.2 10.6 11.7 14.3 13.3 12.9 16.7 11.7 13.3 15.6 Narembeen 11.1 12.4 11.9 16.0 12.1 11.9 12.5 10.1 13.7 16.5 19.9 15.4 10.9 15.0 17.1 15.1 15.2 15.3 13.0 14.7 18.0 13.6 15.7 17.5 Narrogin 13.0 +0.7 7 11.5 11.3 14.0 13.4 11.4 13.0 11.2 13.7 11.8 11.4 12.0 12.3 13.1 16.1 17.0 13.3 10.1 10.9 13.9 16.5 12.3 10.3 12.2 13.3 12.4 14.0 12.3 15.6 12.6 13.5 15.9 Ongerup 12.1 -0.3 5 8.0 11.2 14.5 12.8 10.9 12.5 10.4 14.0 11.4 12.0 11.6 11.2 12.0 12.9 15.5 14.0 11.0 9.4 12.3 16.7 11.4 9.0 10.6 12.6 9.6 12.6 14.0 10.2 13.7 15.6 Pingelly 13.4 -0.4 4 10.0 11.3 17.2 12.2 11.6 11.1 12.5 14.2 12.4 10.6 10.8 12.1 13.5 16.9 17.4 14.9 10.1 12.2 14.1 18.1 13.8 11.9 12.6 14.2 13.9 15.8 13.5 10.5 13.8 15.6 16.4 Ravensthorpe 12.5 -0.2 5 8.9 9.8 13.6 12.4 13.5 12.2 10.1 15.1 11.0 12.9 12.5 8.9 10.8 15.0 14.5 14.2 13.3 8.5 13.6 21.8 8.3 11.2 12.0 13.3 12.4 13.6 11.2 14.6 9.2 13.6 16.1 Wagin 12.6 -0.3 5 8.0 12.0 13.8 13.9 10.9 13.5 11.4 14.2 11.7 12.6 11.8 10.5 11.0 15.6 16.0 13.2 8.5 9.6 13.8 15.7 13.4 8.9 12.0 12.5 11.9 13.5 12.5 16.5 12.5 13.4 16.0 Wandering 11.5 7.2 10.3 14.6 10.8 10.0 13.5 10.7 13.4 6.6 5.0 11.2 8.7 10.6 17.0 12.7 13.5 7.3 11.0 9.4 17.2 13.4 8.2 10.0 13.9 12.8 12.0 10.2 12.7 11.2 14.1 16.2 Eucla (11) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Balladonia 13.7 +0.5 7 8.0 10.9 15.9 15.4 13.2 12.6 8.9 16.7 11.4 13.0 13.9 9.9 10.8 14.5 15.5 17.9 14.6 10.0 11.5 16.6 15.4 12.8 12.7 17.3 19.6 16.1 12.4 17.0 10.1 16.2 Eucla 15.1 0.0 5 11.3 10.5 15.5 17.8 12.4 16.2 11.2 12.4 16.7 16.7 16.9 13.8 12.6 10.6 16.8 16.7 17.1 16.3 14.3 14.8 19.5 17.6 15.3 17.3 18.8 18.7 16.7 13.8 16.1 9.5 13.2 Eyre 12.9 -1.2 1 9.8 6.4 16.8 20.1 9.5 16.0 3.9 13.8 14.5 16.8 15.0 13.9 8.8 7.5 17.5 18.0 16.9 5.1 14.5 19.2 17.6 8.0 14.0 18.5 18.2 13.0 10.2 8.4 6.0 9.4 Forrest 15.3 12.0 13.1 17.3 18.8 13.6 16.2 11.7 14.1 16.0 15.4 16.0 13.1 9.6 11.8 14.2 17.8 17.6 15.5 10.8 14.9 22.5 17.5 15.5 19.1 19.6 19.2 16.7 16.7 14.0 11.3 13.0 South East (12) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bulga Downs 19.6 20.0 22.5 21.8 15.9 15.9 19.2 21.2 19.2 15.9 15.3 12.9 14.1 14.9 16.5 19.4 22.9 19.6 18.2 18.0 20.0 15.3 18.6 22.5 23.0 23.3 24.6 24.0 22.8 25.0 24.5 21.6 Kalgoorlie-Boulder Airport 17.0 +0.4 7 14.0 16.4 19.0 15.2 16.7 14.2 15.2 20.6 13.2 15.4 13.0 11.4 14.8 18.3 22.6 17.7 14.6 13.7 17.3 22.4 15.8 15.3 19.0 15.7 18.8 18.9 17.9 20.0 18.4 19.3 21.5 Laverton Aero 19.8 19.4 21.7 19.9 19.5 18.6 15.5 17.6 22.1 19.3 21.0 17.4 13.1 15.4 18.8 21.9 25.2 18.0 15.2 17.8 24.5 19.8 19.5 19.6 21.6 21.4 21.0 21.3 23.8 21.2 21.5 21.8 Leinster Aero 21.2 21.7 23.7 21.2 18.4 19.6 19.1 20.8 25.1 18.0 18.5 15.9 14.2 16.1 19.2 22.3 24.2 21.5 19.7 18.7 26.2 18.3 19.9 23.1 23.6 24.8 23.7 25.2 24.6 23.7 23.7 Leonora 20.4 +0.5 7 20.9 24.1 22.9 18.0 19.4 16.8 20.0 24.2 17.7 17.4 15.7 13.5 14.6 18.8 24.2 23.6 19.9 16.8 18.3 23.8 17.8 21.2 21.8 20.9 21.8 22.4 23.1 23.8 23.3 22.6 24.6 Norseman 14.7 13.0 12.0 18.9 10.5 14.5 12.9 7.8 10.5 15.5 19.5 16.5 11.5 8.1 14.1 12.5 14.5 14.5 11.5 13.5 16.5 Salmon Gums Res.Stn. 12.2 0.0 5 6.4 9.9 15.2 13.3 12.9 10.9 11.1 17.6 8.0 14.1 12.9 6.2 11.1 15.9 18.3 15.2 11.5 6.1 12.7 19.5 16.9 8.5 12.9 12.4 13.1 11.9 7.7 15.2 7.7 8.2 13.8 Southern Cross Airfield 15.3 11.9 14.7 20.5 11.5 12.3 12.0 14.5 15.0 15.0 12.3 12.2 6.8 12.1 18.5 19.6 17.3 11.4 12.6 17.2 19.0 15.6 14.3 17.2 15.0 18.1 15.9 15.8 18.1 16.9 17.8 22.7 Yeelirrie 23.4 22.0 17.2 19.3 18.8 19.0 17.0 8.0 14.0 13.0 12.0 13.7 15.6 14.6 22.0 20.5 16.0 15.8 North East (13) Mean Anom Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Balgo Hills 24.6 27.4 26.0 26.4 29.0 25.7 27.0 25.5 23.5 24.3 24.5 20.8 23.3 21.7 22.2 22.3 21.8 23.0 26.2 27.6 25.3 26.6 23.3 23.4 24.0 23.6 24.3 24.4 Carnegie 21.1 23.2 23.7 21.7 20.7 21.3 19.7 15.2 16.0 16.3 17.9 22.6 Giles Meteorological Office 21.9 0.0 5 22.0 25.3 30.1 21.6 20.8 18.5 19.3 21.0 23.3 25.5 20.5 16.1 12.8 14.2 16.1 21.9 22.6 23.1 21.3 26.5 24.1 24.6 23.4 25.6 26.4 24.9 20.5 22.7 20.9 21.7 20.7 Telfer Aero 26.3 +1.0 9 26.6 31.2 24.8 27.2 28.9 27.9 26.4 25.1 25.7 24.6 25.0 22.1 22.5 20.5 21.8 22.5 27.3 26.4 31.2 28.6 29.7 30.8 29.3 28.2 26.6 28.1 25.0 24.6 26.4 25.4 24.3 Warburton Airfield 19.4 -1.8 1 18.4 24.2 23.1 20.3 18.5 18.7 18.1 18.6 20.1 20.6 20.8 15.3 14.3 15.2 17.7 17.5 21.3 20.0 19.4 20.5 19.3 21.6 22.3 20.8 20.1 19.5 17.2 21.8 18.8 19.5 18.1 Wiluna 20.9 -0.1 5 25.5 25.5 23.0 20.0 17.0 15.0 20.0 24.5 16.0 11.4 16.1 16.0 17.0 17.1 21.4 25.5 22.7 21.5 22.0 27.0 21.0 22.6 23.0 22.0 21.5 26.0 12.8 20.2 24.4 25.2 24.5

page 19 Monthly Weather Review Western Australia December 2008

Daily and total rainfall for December 2008 Total is the total precipitation for December 2008; a missing total indicates there is concern about the quality of some of the daily values. Avg is the long-term average total precipitation for December. Decile is the decile rank of total precipitation for December 2008 in the climate record of other December totals; “L” indicates this is the lowest on record, and “H” it is the highest on record. Long-term average and decile rank are only shown if there are sufficient years of climate record available. Reports of zero precipitation are shown as “· ”. When a reading was accumulated over more than one day, “»” is shown on the days that are part of the accumulation.

North Kimberley (01) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Doongan 432.7 0.4 10.9 11.0 · 0.8 1.0 · 23.0 19.2 6.0 7.5 3.8 · · · 0.4 · · · 1.0 88.0 148.2 26.5 · · · · · · 1.0 84.0 Drysdale River Station 393.0 8.2 16.6 8.4 44.0 4.2 5.4 120.4 126.8 20.4 38.6 Kalumburu 243.6 · · · · 0.4 · · · 0.6 0.2 9.0 8.2 6.6 20.0 5.0 7.4 1.0 · 1.2 54.4 73.2 56.2 0.2 · · · · · · · Kuri Bay 389.9 163 9 · · · · · · · · · 5.2 30.5 28.8 · 7.4 · · 68.0 0.8 · 12.0 5.0 64.2 106.8 · · · 9.4 · · 1.4 50.4 Mount Elizabeth 503.1 170 H 0.1 14.0 49.0 · · 32.0 · · 4.5 19.0 10.9 0.6 · · · · · · · 1.4 20.0 130.0 6.2 · · 84.4 · 9.0 · · 122.0 Theda 292.0 182 9 1.0 2.8 0.4 3.0 13.0 3.2 14.5 36.5 4.5 11.0 2.3 2.0 1.0 25.0 138.0 23.8 10.0 Wyndham 676.6 149 H · · 0.6 · · · · · · 8.0 0.6 30.0 · · 1.4 5.0 7.0 51.0 31.6 130.0 254.0 41.0 1.0 · 10.0 2.2 2.2 · · 31.6 69.4 East Kimberley (02) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Argyle Aerodrome · · 15.2 · 6.6 29.8 · · 4.6 · · 0.2 · 11.6 26.0 4.4 0.2 2.6 9.4 41.2 0.2 · · 32.8 2.8 Halls Creek Airport 48.2 82 4 · · · 0.4 · 2.2 1.6 · 1.2 · 6.8 3.2 · · · · · · · 0.2 1.0 · · 0.4 · 18.2 · · · 12.8 0.2 Kimberley Res.Station 480.3 144 H · 20.0 7.0 · · · · · · 28.0 1.0 3.0 · · 41.0 4.0 · 56.0 84.0 » » 141.0 · · » » » » 50.0 45.0 0.3 Kununurra Aero 382.0 134 H · 10.0 4.6 · · · · · · 5.4 0.4 1.2 · · 41.8 0.2 · 44.4 76.2 76.0 16.0 27.2 0.2 · 32.8 6.4 0.4 · · 38.6 0.2 Margaret River 133.8 64 10 · · · 0.4 · · · · 10.4 · 40.0 8.6 · · · · · · · · · · · 1.8 0.8 49.4 · · · 8.0 14.4 Ruby Plains 84.8 71 7 · 4.2 · · · 23.0 · · · · 19.2 · · · · · · · · · · · · · · 6.4 · · · 27.6 4.4 Sturt Creek 38.6 64 4 3.0 2.0 2.6 13.0 8.0 2.0 8.0 Warmun 182.5 114 8 · 0.2 6.0 · · 0.2 · · 1.4 4.0 3.0 9.0 5.0 · 5.0 · · 1.3 1.3 1.5 8.7 3.5 · · 3.0 115.0 1.5 · · 12.9 · West Kimberley (03) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bidyadanga 80.9 54 9 · · · · · · · · · 1.0 0.4 · · · · · · · · · · · 1.6 71.0 1.4 » » » » 5.0 0.5 Broome Airport 157.4 55 10 · · · · · · · · · · · · · · · · · · · · · · 36.2 86.6 0.6 · 2.4 · · 1.4 30.2 Curtin Aero 223.8 · · 9.8 · · 20.2 0.2 · · 53.4 4.0 · · · · 2.4 · · 0.2 · · 92.0 31.0 · · 5.4 · · 0.8 4.4 Cygnet Bay 80 · · · · · · · · · 0.5 49.2 · · · · · · · · 0.2 · · · · · · · · · · · Dampier Downs 76 9 2.6 5.0 46.0 4.6 17.0 2.0 15.9 17.6 11.0 Derby Aero 174.6 68 10 · 3.2 11.8 0.2 0.2 0.2 · · · 1.0 8.6 1.0 · · · · · · · 3.6 · 0.4 126.8 17.6 · · · · · · · Fitzroy Crossing Aero 304.0 · · 16.2 · · · · · · · 3.6 23.2 · · · · · · · · · · · · · 193.4 55.6 3.2 · 8.0 0.8 De Grey (04) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Karratha Aero 0.4 13 5 · · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.4 · Mandora 11.4 32 6 · · · · · · · · · · · · · · · · · · · · · 5.0 · · 1.6 · 4.8 · · Marble Bar 70.2 · · · · · · · · · · · · · · · · · · · · · · 1.2 · · · 8.0 0.2 4.6 0.2 56.0 Pardoo Station 19.2 23 8 · · · · · · · · · · · · · · · · · · · · · · · · · · 6.4 · · 12.4 0.4 Port Hedland Airport 48.6 19 9 · · · · · · · · · · · · · · · · · · · · · · · · · · 1.0 1.0 · 0.4 46.2 Roebourne · 11 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Fortescue (05) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Dampier Salt 0.7 12 5 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.7 · Learmonth Airport 8.4 5.5 9 · · · · · · · · · · · · · · · · · · · · · · · · · · · · » 8.4 · Mardie 2.8 8.3 8 · · · · · · · · · · · · · · · · · · · · · · · · · 2.4 0.2 · 0.2 · · Millstream 29.6 28 7 · · · · · · · · · · · · · · · · · · · · · · · · · 5.6 · · 16.4 1.6 6.0 Onslow 3.1 5.2 9 · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.1 · 2.8 0.2 Pannawonica 69.4 29 9 · · · · · · · · · · · · · · · · · · · · · · · · 1.8 7.4 · · 21.4 20.8 18.0 Tom Price 89.2 41 9 3.6 · · · · · · · · · · · · · · · · · · · · · 2.2 20.0 27.6 34.7 0.8 0.3 · West Gascoyne (06) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Carnarvon Airport 0.4 1.8 7 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.2 0.2 Denham 3.0 1.3 9 3.0 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Emu Creek Station 0.9 13 4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.8 0.1 · Gascoyne Junction 0.2 4.1 6 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.2 · Murchison · · · · · · · · · · · · · · · · East Gascoyne (07) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Mininer 8.6 16 6 · 1.8 · · · · · · · · · · · · · · · · · · · · · · · · · 4.8 · 2.0 · Mount Phillip · 8.9 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Mount Vernon 19.8 15 8 · 8.0 · · · · · · · · · · · · · · · · · · · · · · · 2.0 · 9.8 · · · Newman Aero 41.6 40 7 · 8.0 4.2 · · · · · · · · · · · · · · · · · · · · · 0.8 0.2 5.6 22.0 · 0.8 Paraburdoo Aero 24.2 30 7 · 3.8 3.6 · · · · · · · · · · · · · · · · · · · · · 3.2 · · 11.2 · 0.6 1.8 Murchison (07A) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Boolardy · 8 5 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Cue 2.8 14 4 · 1.2 · · · · · · · · · · · · · · · · · · · · · · · · · · 1.6 · · Meekatharra Airport 14.8 12 7 · · · · · · · · · · · · · · · · · · · · · · · · · · · 14.8 · · · Mount Magnet Aero 3.8 · 0.4 3.2 0.2 · · · · · · · · · · · · · · · · · · · · · · · · · · · Paynes Find 2.8 12 4 · · 2.8 · · · · · · · · · · · · · · · · · · · · · · · · · · · · North Coast (08) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Ajana 1.0 5.0 5 1.0 Barberton 9.2 3.2 6.8 4.0 Canna 4.6 9.8 5 · 0.2 · · · · · · · · · · · · · · · · · · · · · · · · · · · 2.0 2.4 Carnamah 4.8 9.1 6 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4.8 Coorow · 8.7 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Dalwallinu Comparison 1.4 11 4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1.4 Eneabba 3.7 9.6 6 · 0.2 · 0.2 · · · · · 0.3 3.0 · · · · · · · · · · · · · · · · · · · · Geraldton Airport 3.4 5.4 6 · 0.4 2.2 · · · · · · · 0.8 · · · · · · · · · · · · · · · · · · · · Kalbarri 3.4 3.0 8 · 3.4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Kondut 0.2 9.9 2 · · · · · · · · · · 0.2 · · · · · · · · · · · · · · · · · · · · Latham 11.6 8.7 8 · · 0.6 · · · · · · · · · · · · · · · · · · · · · · · · · · · 11.0 Miling · 9.8 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Mingenew 14.8 6.4 9 · 0.6 2.0 · · · · · · · 1.0 · · · · · · · · · · · · · · · · · · · 11.2 Morawa Airport 6.4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6.4 Mullewa 7.0 7.5 7 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 7.0 · Nabawa 2.0 5.8 5 · 1.6 0.4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · Northampton 2.6 5.1 6 · 2.2 · · · · · · · · 0.4 · · · · · · · · · · · · · · · · · · · · Perenjori 0.8 8.2 4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 0.8 Three Springs 3.6 8.1 6 · · · 1.4 · · · · · · · · · · · · · · · · · · · · · · · · · · 2.2 Wongan Hills 9.0 10 7 · 1.6 · · · · · · · · 7.0 · · · · · · · · · · · · · · · · · · · 0.4

page 20 Monthly Weather Review Western Australia December 2008

Daily and total rainfall for December 2008 Total is the total precipitation for December 2008; a missing total indicates there is concern about the quality of some of the daily values. Avg is the long-term average total precipitation for December. Decile is the decile rank of total precipitation for December 2008 in the climate record of other December totals; “L” indicates this is the lowest on record, and “H” it is the highest on record. Long-term average and decile rank are only shown if there are sufficient years of climate record available. Reports of zero precipitation are shown as “· ”. When a reading was accumulated over more than one day, “»” is shown on the days that are part of the accumulation.

Central Coast (09) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Armadale 16.4 11 8 · · · 4.0 0.4 · · · · · 4.2 · · · · · · · · » » 7.8 · · · · · · · · · Badgingarra Research Stn 10.6 9.3 7 · · 0.6 3.2 0.2 · · · · 1.4 0.4 · · · · · · · · · · · · · · · · · · · 4.8 Bickley 10.8 13 6 · · 0.8 5.8 · · · · · · 1.6 · · · · · · · · 1.6 1.0 · · · · · · · · · · Gingin Aero 9.8 · · 0.8 · · · · · · 3.4 5.6 · · · · · · · · · · · · · · · · · · · Gosnells City 14.2 11 8 · · 2.0 3.0 0.2 · · · · 0.4 8.0 · · · · · · · · · 0.6 · · · · · · · · · · Jandakot Aero 11.0 10 7 · · 0.6 0.6 · · · · · 1.6 3.8 · · · · · · · · · 4.4 · · · · · · · · · · Jarrahdale 17.2 19 7 0.2 · 2.6 1.8 0.4 · · · · · 3.6 · · · · 0.2 · · · 0.2 8.0 · · · · · 0.2 · · · · Jurien Bay 9.0 6.6 8 · · · 3.4 1.6 · · · 0.6 0.4 3.0 · · · · · · · · · · · · · · · · · · · · Karnet 17.0 18 6 · · 1.2 2.1 · · · · 0.5 · 9.8 · · · · · · · · · 3.4 · · · · · · · · · · Kwinana BP Refinery 28.2 8.5 10 · · · 0.8 · · · · · 14.0 1.0 · · · · · · · · 0.6 11.8 · · · · · · · · · · Lancelin 6.0 7.4 7 · · · 2.0 1.0 · · · 2.0 1.0 · · · · · · · · · · · · · · · · · · · · · Leeman 20.7 9.9 0.8 0.1 4.4 15.4 Medina Research Centre 20.4 · · 0.2 2.2 · · · · 0.8 3.2 2.2 · · · · · · · · · 11.8 · · · · · · · · · · Mosman Park 17.4 5.8 10 · · 1.2 1.6 0.2 · · · · 12.2 1.4 · · · · · · · 0.8 · · · · · · · · · · · · Mount Helena 3.4 · · 0.6 · · · · · · · 1.6 · · · · · · · · · 1.2 · · · · · · · · · · Mundaring 21.8 17 8 · · 2.2 0.4 0.2 · · · · 4.6 0.6 · · · · · · · · 1.6 12.2 · · · · · · · · · · Murdoch 14.8 » » 3.4 » 11.0 0.4 Pearce RAAF 7.9 8.9 6 · · 0.2 1.2 0.1 · · · · 5.6 · 0.2 · · · · · · · 0.6 · · · · · · · · · · Perth Airport 5.4 11 5 · · 1.0 1.2 · · · · · 1.0 1.2 · · · · · · · · · 1.0 · · · · · · · · · · Perth Metro 11.6 · · 0.4 0.8 0.4 · · · · 3.2 4.2 · · · · · · · · 0.6 2.0 · · · · · · · · · · Roleystone 18.4 15 7 · · 1.6 1.0 0.4 · · · · · 3.0 · · · · · · · · 0.4 12.0 · · · · · · · · · · Rottnest Island 4.8 · · · · 0.4 · · · 1.0 2.6 0.2 · · · · · · · · 0.4 0.2 · · · · · · · · · · Swan View 6.8 9.6 5 · · 0.8 · · · · · · 0.6 2.8 · · · · · · · · 1.4 1.2 · · · · · · · · · · Swanbourne 24.8 · · 0.4 6.8 0.2 · · · · 14.2 1.0 · · · · · · · · 1.0 1.2 · · · · · · · · · · Two Rocks 12.8 · · 1.2 · · · · · 0.6 5.0 6.0 · · · · · · · · · · · · · · · · · · · · Wanneroo 11.7 9.5 7 0.5 9.2 2.0 South Coast (09A) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Albany Airport 33.2 27 8 · · · · 4.2 0.2 · · 0.6 10.0 2.6 0.8 0.2 · · 1.2 · 0.2 · · 10.6 1.4 · · · 0.4 0.2 0.6 · · · Albany 29.2 30 7 · · 0.2 7.8 · · · · · 14.4 0.2 0.2 0.2 · · 0.8 0.2 · · 0.2 0.6 1.2 · · · 0.8 · 2.4 · · · Boyup Brook 15.8 14 7 6.4 1.0 » » 8.4 Bremer Bay 112.8 23 H · · 2.8 31.0 · · · 1.6 · 12.6 59.0 · · · · 2.2 0.8 · · · 0.8 · · · · 2.0 · · · · · Bridgetown Comparison 27.2 19 8 · · · 0.8 1.8 · · · · 9.4 1.6 · · · · · · · · · 12.4 1.2 · · · · · · · · · Brunswick Junction 17.2 15 7 · · · 3.5 1.4 · · · 0.2 0.3 · · · · · · · · · · 11.8 · · · · · · · · · · Bunbury 3.4 · · · · 1.4 · · · · 1.8 · · · · · · · · · · 0.2 · · · · · · · · · · Busselton Shire 1.8 Cape Leeuwin 17.8 21 5 · · · · 0.8 0.6 · 0.6 · 3.4 0.4 0.2 · · · 0.2 · · · 3.6 8.0 · · · · · · · · · · Cape Naturaliste 31.2 13 9 · · 0.2 2.4 · · · 0.4 2.4 2.8 13.8 · · · · · · · · 8.8 0.4 · · · · · · · · · · Collie 23.3 16 8 · · 0.2 3.8 · · · · 0.3 1.8 3.4 · · · · · · · · · 13.8 · · · · · · · · · · Denmark 31.2 35 6 · 0.4 · · 3.4 · · 0.2 2.2 2.6 8.4 1.0 · · · 4.2 · · · » » 6.4 · · Donnybrook 10.3 16 5 · · · 4.6 0.4 · · · 1.2 0.2 0.2 · · · · · · · · · 3.7 · · · · · · · · · · Dwellingup 14.6 20 5 · · · 2.6 0.8 0.2 · · · · 1.2 · · · · · · · · 2.2 7.4 0.2 · · · · · · · · · Esperance Aero 43.6 20 9 · · 1.0 4.8 · · · · · 1.2 29.0 4.4 · · · 1.0 0.8 · · · 0.8 0.2 · · · · · 0.2 0.2 · · Esperance 23.2 18 8 · · 0.4 4.8 · · · · · 0.8 13.0 3.6 0.2 · · 0.2 · · · · · · · · · · · 0.2 · · · Harvey 27.8 · · · 1.4 0.8 · · · · · · · · · · · · · · · 25.6 · · · · · · · · · · Hopetoun 21 » 31.2 Jarrahwood 19.2 17 7 · · 0.6 5.2 0.8 · · · 0.4 6.2 0.2 · · · · · · · · 2.4 3.2 0.2 · · · · · · · · · Kendenup 25.6 22 8 · · · · · · · · 0.8 13.8 2.2 0.6 · · · 0.4 · · · · » 7.8 · · · · · · · · · Mandurah 5.4 · · · 2.0 · · · · 0.4 0.2 2.6 · · · · · · · · 0.2 · · · · · · · · · · · Manjimup 48.2 26 9 · · · · 3.6 0.6 · · · 3.4 0.8 · · · · · · · · 1.2 37.0 0.8 · · · · · 0.8 · · · Margaret River 16.8 19 6 · · · 1.4 0.6 · · · 6.0 0.2 · · · · · · 0.2 · · » » 8.4 · · · · · · · · · Marradong 19.6 12 9 · · 0.8 · · · · · · · 1.8 · · · · · · · · · 17.0 · · · · · · · · · · Mount Barker 32.5 29 7 · · · · · » » 1.0 1.0 10.2 6.2 » » » » 3.8 · · · · » 9.8 · · · » » » » » 0.5 Nannup 21 6.0 2.0 Northcliffe 105.2 35 H · · · 0.4 5.6 · · · 4.6 5.8 4.4 · · · · · · · · 3.0 » 79.0 · · · · 1.4 1.0 · · · Pemberton 74.3 35 10 · · · 0.6 3.6 0.1 · 0.8 1.4 2.4 1.6 · · · 1.2 1.6 · · · 1.1 56.9 1.0 · · · · 0.2 1.8 · · · Pinjarra 19.2 14 8 · · · 1.0 · · · · · · 16.2 · · · · · · · · 1.8 0.2 · · · · · · · · · · Rocky Gully Town 32.8 24 8 · · · · · 2.4 · · · 9.2 15.4 3.4 · · · · · · · 2.4 · · · · · · · · · · · Roelands 16.4 15 7 · · · 3.4 0.4 · · · · 4.8 2.4 · · · · · · · · 0.4 5.0 · · · · · · · · · · Walpole 69.7 40 9 · · 1.0 3.0 11.1 » » 1.4 3.2 5.6 6.1 8.6 » » 0.6 3.0 · 0.1 · » » 25.0 · · » » » » 1.0 · · Warner Glen 35.4 19 9 · · · 1.0 2.0 · · 0.6 2.4 12.8 1.6 · · · 0.2 4.4 · · · 6.2 3.0 · · · · · · 1.2 · · · Wellstead 63.9 24 10 · · 0.6 6.0 0.4 1.0 0.4 · · 20.5 33.0 · · · 0.2 0.8 · · · · 0.4 0.2 0.4 · · · · · · · · Windy Harbour 70.2 · · · 1.4 0.6 » » 1.2 » 10.8 1.4 » 0.4 · · · » 0.2 · 0.4 53.2 · · · · · 0.4 0.2 · · · Witchcliffe · · · 0.6 1.0 · · 1.4 1.6 0.4 1.4 · · · · · 0.2 · · 8.6 · · · · · · 0.2 · · · North Central (10) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bencubbin 2.6 13 4 · · · · · · · · · · 2.6 · · · · · · · · · · · · · · · · · · · · Bolgart 8.6 10 7 2.2 0.4 4.8 1.2 Bruce Rock 7.0 12 6 7.0 Cadoux 13 2.0 Calingiri 8.2 10 7 3.5 0.5 4.2 Cunderdin Airfield 2.4 · · 0.8 · · · · · · · 1.6 · · · · · · · · · · · · · · · · · · · · Doodlakine 1.9 12 3 1.2 0.5 0.2 Dowerin 6.2 12 6 · · 1.6 · · · · · · · 3.4 · · · · · · · · · · · · · · · · · · · 1.2 Goodlands · 12 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Goomalling 3.6 10 6 · · 2.8 · · · · · · · 0.8 · · · · · · · · · · · · · · · · · · · · Hines Hill 1.8 8.0 5 · · · · · · · · · · 1.8 · · · · · · · · · · · · · · · · · · · · Kellerberrin 1.2 13 3 · · 1.2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · Koorda 1.2 10 3 · · · · · · · · · · 1.2 · · · · · · · · · · · · · · · · · · · · Meckering 5.2 8.1 6 · 0.8 · · · · · · · · 4.4 · · · · · · · · · · · · · · · · · · · · Merredin 1.4 14 3 · · · · · · · · · · 1.4 · · · · · · · · · · · · · · · · · · · · Moningarin 0.8 12 2 · · · · · · · · · · 0.8 · · · · · · · · · · · · · · · · · · · · Northam 5.8 9.1 7 · · 0.6 · · · · · · · 5.2 · · · · · · · · · · · · · · · · · · · · Tammin 1.0 11 3 · · 1.0 · · · · · · · · · · · · · · · · · · · · · · · · · · · · Toodyay 3.4 9.0 5 · · 1.2 · · · · · · · 2.2 · · · · · · · · · · · · · · · · · · · · Trayning · 11 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Wialki · 10 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Wyalkatchem 6.8 10 7 0.4 6.4 York 2.9 · · 0.6 · · · · · · · 2.0 · · · · · · · · · 0.3 · · · · · · · · · · Yorkrakine 2.8 10 5 · · 2.8 · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

page 21 Monthly Weather Review Western Australia December 2008

Daily and total rainfall for December 2008 Total is the total precipitation for December 2008; a missing total indicates there is concern about the quality of some of the daily values. Avg is the long-term average total precipitation for December. Decile is the decile rank of total precipitation for December 2008 in the climate record of other December totals; “L” indicates this is the lowest on record, and “H” it is the highest on record. Long-term average and decile rank are only shown if there are sufficient years of climate record available. Reports of zero precipitation are shown as “· ”. When a reading was accumulated over more than one day, “»” is shown on the days that are part of the accumulation.

South Central (10A) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Ardath 2.8 12 4 0.8 2.0 Badgebup 44.4 14 10 2.2 29.0 11.4 0.4 1.4 Beverley 13.4 10 8 · · 1.6 0.4 · · · · · · 11.0 · · · · · · · · · 0.4 · · · · · · · · · · Borden 45.0 17 10 1.0 0.4 5.8 36.0 1.0 0.8 Brookton 4.0 10 5 · · 3.4 · · · · · · · 0.4 · · · · · · · · 0.2 · · · · · · · · · · · Broomehill 36.9 14 9 3.0 · · · · · · · · 19.0 11.0 · · · 0.5 1.4 · · · · 2.0 · · · · · · · · · · Corrigin 18.8 13 8 · · 1.4 · · · · · · 11.0 6.4 · · · · · · · · · · · · · · · · · · · · Cranbrook 34.0 18 9 · · · · · · · · · 17.0 12.0 · · · · · · · · · » 5.0 · · · · · · · · · Darkan 9.4 10 7 · · · · · · · · · · 3.2 · · · · · · · · · 6.2 · · · · · · · · · · Dumbleyung 34.0 14 9 · · 3.2 · · · · · · 21.0 4.6 · · · · 1.0 · · · · 4.2 · · · · · · · · · · Gnowangerup 73.8 16 10 · · · · · · · · · 48.0 24.8 · · · · · · · · » » 1.0 · · · · · · · · · Hyden 38.6 14 10 · · 1.2 · · · · · · 3.4 33.6 0.4 · · · · · · · · · · · · · · · · · · · Jacup 65.0 · · 3.2 10.0 · · · 0.4 0.4 20.4 23.4 3.8 · · · 0.4 0.4 · · · 1.6 · · · · 0.4 · 0.6 · · · Jerramungup 49.4 22 9 · · 13.6 4.0 · · · · · 14.0 13.6 · · · · 1.6 · · · · · · · · · · · 2.6 · · · Karlgarin 51.6 12 10 15.2 36.4 Katanning Comparison 19.2 16 7 · · · · · · · · · 13.6 2.4 · · · · 0.6 · · · · 2.6 · · · · · · · · · · Kojonup 19.6 15 8 · · · · 0.2 · · · · 1.4 1.2 · · · 2.4 1.0 · · · · 13.2 · · · · · · 0.2 · · · Kondinin 22.8 12 9 3.0 1.4 0.4 0.6 17.4 Kukerin 14.8 15 7 · · 1.0 9.0 · · · · · · 4.8 · · · · · · · · · · · · · · · · · · · · Kulin 39.4 13 10 · · 1.1 3.4 · · · · 0.5 10.6 23.6 0.2 · · · · · · · · · · · · · · · · · · · Lake Grace Comparison 33.2 15 9 · · 3.4 5.4 · · · · 1.0 0.6 22.8 · · · · · · · · · · · · · · · · · · · · Mount Walker 2.0 13 4 2.0 Nalyerlup 54.8 · · · 9.2 · · · · · 4.0 32.4 · 0.8 · 1.0 1.0 · · · · 5.4 · · · · · · 1.0 · · · Narembeen 11.5 12 7 · · 2.4 · · · · · · · 9.1 · · · · · · · · · · · · · · · · · · · · Narrogin 8.4 13 6 · · 1.0 · · · · · · · 2.2 · · · · 1.0 · · · · 4.2 · · · · · · · · · · Newdegate Research Station 58.0 14 10 · · 4.4 3.8 0.2 · · · · 5.4 42.4 0.2 · · · 0.2 0.2 · · · 1.2 · · · · · · · · · · Ongerup 31.8 17 9 · · 2.0 1.6 · · · · · 6.8 18.8 0.2 · · 0.2 0.2 · · · · 1.4 0.4 · · · · · 0.2 · · · Pingelly 34.6 12 10 · · 2.4 · · · · · · · 32.2 · · · · · · · · · · · · · · · · · · · · Quairading 3.8 9.7 5 · · 2.0 · · · · · · 0.6 · · · · · 1.2 · · · · · · · · · · · · · · · Ravensthorpe 49.8 23 9 0.1 · 8.0 4.4 0.2 · · 0.7 2.6 · 30.6 2.2 · · · 0.2 · · · · · · · · · · · 0.8 · · · Tambellup 36.6 17 9 · · · · · · · · · 17.8 14.6 · · · · · · · · » » 4.2 · · · · · · · · · Wagin 5.8 12 5 · · 0.2 · · · · · 0.2 1.0 · · · · 0.4 · · · · 4.0 · · · · · · · · · · · Wandering 2.8 · · 1.2 0.4 · · · · · · 0.4 · · · · 0.4 · · · · 0.4 · · · · · · · · · · Wickepin 12.6 11 8 · · 1.4 0.4 0.2 · · · · · 10.4 · · · · · · · · · 0.2 · · · · · · · · · · Williams 13 1.4 » » 24.4 Woodanilling 18.1 15 8 · · · · · · · · · 5.5 9.8 · · · · · · · · · 2.8 · · · · · · · · · · Eucla (11) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Balgair 51.0 · · 0.8 · · · · · 12.4 · · » 11.6 · · · · · · · 1.4 · » 19.0 4.6 1.2 · · · · · Balladonia 28.8 19 8 · · · · · · · · · · 8.4 15.0 0.2 · · 5.2 · · · · · · · · · · · · · · · Eucla 33.0 18 9 · · · 2.4 · · · · » » 6.8 9.2 · · · 0.2 0.2 · · · 1.4 · » » 8.2 4.4 · » » 0.2 · Eyre 35.4 19 9 · · 0.2 14.4 · · · · 0.2 · 5.4 7.6 0.4 · · 2.6 1.4 · · · · · · · 3.2 · · · · · · Forrest 37.2 · · 0.6 8.0 · · · · 10.4 · · 1.0 · · · · · · · · 0.4 · 4.2 1.2 11.4 · · · · · · South East (12) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Bulga Downs 3.4 12 5 · 0.2 2.2 · · · · · · · · · · · · · · · · · · · · · · 1.0 · · · · · Bullfinch · 15 L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Bulong 16 · 1.0 14.2 1.2 13.0 · Coolgardie 19.6 17 7 · · · · · · · · · · · 19.6 · · · · · · · · · · · · · · · · · · · Kalgoorlie-Boulder Airport 28.4 16 9 · · 1.6 · · · · · · · 11.4 12.2 · · · · · · · · · · · 3.2 · · · · · · · Laverton Aero 22.8 · · 1.6 2.2 · · · · · · · 0.6 · · · · · · · · · · · · 14.8 3.6 · · · · · Laverton 33.2 18 9 · · 2.4 7.2 · · · · · · · · · · · · · · · · 2.2 · · · 14.6 6.8 · · · · · Leinster 18.6 · · 4.6 · · · · · · · · · · · · · · · · · · · · 0.5 13.2 0.3 · · · · · Leonora 2.0 17 3 · · 0.4 · · · · · · · · · · · · · · · · · · · · 1.6 · · · · · · · Lort River 40.8 19 9 · · 6.2 6.2 · · · · · 2.2 18.8 6.0 · · · 0.4 · · · · · · · · · · · 1.0 · · · Norseman 59.6 21 10 · · · · · · · · · 5.6 34.4 11.4 · · · 3.4 0.2 · · · · · · 4.6 · · · · · · · Salmon Gums Res.Stn. 51.6 20 10 · · 0.6 9.6 · · · · · 7.0 24.0 9.4 · · · 1.0 · · · · · · · · · · · · · · · Southern Cross Airfield · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Westonia 10.6 13 6 · · · · · · · · · · 10.6 · · · · · · · · · · · · · · · · · · · · Yeelirrie 68.2 20 10 · · 8.0 · 0.4 · · · · · · · · · · · · · · · · · · · · · · 59.8 · · · Yundamindra 19 4.4 8.6 26.0 North East (13) Total Avg Decile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Balgo Hills 45.4 55 6 · · 0.2 · 5.4 0.2 0.8 1.0 1.6 · 29.6 0.2 · · · · · · · · · · 1.0 0.4 · · 0.2 3.4 0.8 0.6 · Carnegie 8.8 24 4 · · · 6.4 2.4 · · · · · · · · · · · · · · · · · · · · · · · · Giles Meteorological Office 84.6 44 9 · · · 1.4 11.0 28.6 4.4 · 0.8 · 16.2 5.6 · · · · · · · · · 0.8 · · · 0.8 15.0 · · · · Telfer Aero 5.6 47 2 · · 0.8 1.4 · · · · · · · · · · · · · · · · · · · · 0.6 0.4 0.4 · · · 2.0 Warburton Airfield 140.4 33 10 · · · 14.8 0.8 52.6 12.0 · · · · · · · · · · 2.0 0.2 · 3.0 · 3.0 1.4 1.8 4.4 39.8 · 4.6 · · Wiluna 79.1 22 10 · · 3.0 · 4.5 · · · · · · · · · · · · · · · · · 1.0 0.6 · · · 70.0 · · ·

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