WWW.CLIMATE.COM APPENDIX TO 2012 OUTLOOK REPORT: THE IMPACT OF EARLY PLANTING ON HEAT RISK FOR CORN POLLINATION (ISSUED 5/23) HISTORICAL FREQUENCY OF HOT WEEK BY WEEK AND BY STATION (1980-2011) State Station June 17-23 June 24-30 July 1-7 July 8-14 July 15-21 IA Albia 3 Nne 3% 6% 16% 19% 13% IA Algona 3 W 0% 9% 6% 13% 3% IA Allison 3% 3% 9% 6% 6% IA Ames Municipal Airport 3% 3% 9% 13% 6% IA Ankeny 6% 3% 6% 22% 22% IA Atlantic 1 Ne 3% 9% 13% 13% 16% IA Audubon 1 Sse 3% 9% 6% 13% 13% IA Beaconsfield 3% 3% 16% 19% 13% IA Bedford 6% 6% 16% 19% 22% IA Belle Plaine 3% 3% 13% 16% 13% IA Bloomfield 1 Wnw 3% 3% 16% 16% 25% IA Boone 3% 6% 6% 19% 13% IA Britt 3% 13% 6% 9% 9% IA Calmar 3% 0% 0% 6% 0% IA Carroll 3% 9% 9% 9% 13% IA Carroll Arthur N Neu Airport 6% 6% 6% 13% 3% IA Cascade 3% 0% 9% 9% 6% IA Castana 3% 6% 3% 13% 9% IA Cedar Rapids 3% 0% 3% 6% 6% IA Cedar Rapids Municipal Airport 6% 0% 6% 9% 13% IA Cedar Rapids No 1 3% 0% 13% 13% 16% IA Chariton 3% 3% 9% 19% 16% IA Chariton 1 E 3% 3% 13% 19% 19% IA Charles City 3% 6% 6% 9% 3% IA Clarinda 3% 6% 13% 25% 16% IA Cresco 1 Ne 3% 0% 3% 3% 3% IA Davenport Municipal Airport 3% 0% 3% 9% 13% IA Decorah 3% 3% 13% 9% 9% IA Denison 3% 3% 9% 6% 9% IA Des Moines International Airport 3% 3% 9% 19% 25% IA Dubuque Regional Airport 3% 0% 0% 3% 3% IA Elkader 5 Ssw 3% 3% 13% 13% 6% IA Emmetsburg 3% 13% 9% 13% 13% IA Estherville 2 N 3% 6% 6% 6% 13% IA Estherville Municipal Airport 3% 9% 9% 9% 3% IA Fairfield 6% 13% 16% 25% 34% IA Fayette 3% 0% 0% 6% 6% IA Forest City 2 Nne 3% 0% 0% 6% 6% IA Fort Dodge 3% 6% 16% 16% 9% IA Fort Dodge Regional Airport 3% 3% 6% 9% 9% IA Gilbert 3% 3% 9% 16% 6% IA Gilmore 3% 3% 0% 6% 6% IA Grinnell 3 Sw 3% 3% 9% 6% 16% IA Grundy Center 3% 6% 3% 6% 9% IA Guthrie Center 3% 6% 9% 19% 16% IA Guttenberg L & D 10 3% 0% 0% 9% 16% IA Hampton 3% 6% 3% 9% 9% IA Harlan 1N 3% 6% 3% 9% 6% IA Harlan Municipal Airport 3% 6% 6% 13% 9% IA Indianola 3% 3% 9% 19% 13% IA Iowa City Municipal Airport 3% 3% 3% 9% 25% IA Iowa Falls 3% 3% 13% 16% 6% IA Jefferson 3% 13% 13% 19% 13% IA Kanawha 3% 0% 0% 6% 3% IA Keosauqua 6% 16% 22% 25% 47% IA Lamoni Municipal Airport 3% 6% 13% 19% 19% IA Le Mars 9% 13% 16% 16% 16% IA Leon 6 Ese 3% 6% 16% 22% 22% IA Lewis 3% 6% 3% 13% 13% IA Logan 13% 13% 13% 19% 19% IA Manchester #2 6% 0% 3% 6% 6% IA Maquoketa 4 W 3% 0% 3% 6% 6% IA Marshalltown Municipal Airport 3% 0% 6% 9% 3% IA Mason City 3% 9% 6% 9% 9% IA Mason City Municipal Airport 3% 13% 3% 9% 6% IA Mount Ayr 3% 6% 9% 19% 16% IA Muscatine 3% 6% 6% 13% 25% IA Nashua 6% 3% 3% 6% 3% Page 1 HISTORICAL FREQUENCY OF HOT WEEK BY WEEK AND BY STATION (1980-2011) State City June 17-23 June 24-30 July 1-7 July 8-14 July 15-21 IA New Hampton 3% 3% 0% 6% 3% IAIANewton Albia 3 Nne 6%3% 9%6% 13%16%16% 19%22% 13% IAIANewton ALGONA Municipal 3 W Airport 3%0% 3%9% 6%6%16% 13%9% 3% IAIAOakland Allison 6%3% 6%3% 3%9%9% 6%13% 6% IAIAOnawa Ames Municipal 3Nw Airport 3%3% 13%3% 22%9%13% 13%22% 6% IAIAOsage ANKENY 3%6% 3%3% 3%6%3% 22%3% 22% IAIAOsceola Atlantic 1 Ne 3%3% 6%9% 16%13%16% 13%28% 16% IAIAOttumwa Audubon Industrial1 Sse Airport 6%3% 6%9% 9%6%19% 13%28% 13% IAIAPella Beaconsfield Municipal Airport 3%3% 3%3% 6%16%16% 19%16% 13% IAIAPerry Bedford 6%6% 6%6% 13%16%16% 19%19% 22% IAIAPocahontas BELLE PLAINE 9%3% 16%3% 13%13%9% 16%9% 13% IAIARed Bloomfield Oak 1 Wnw 3%3% 13%3% 16%16%25% 16%22% 25% IAIARockwell BOONE City 3%3% 9%6% 9%6%9% 19%3% 13% IAIASac BRITT City 3%3% 9%13% 9%6%13% 9%9% 9% IAIASanborn Calmar 3%3% 3%0% 3%0%9% 6%6% 0% IAIASheldon CARROLL 3%3% 6%9% 6%9%13% 9%13% 13% IAIAShenandoah Carroll Arthur N Neu Airport 6%6% 16%6% 38%6%28% 13%38% 3% IAIASibley Cascade 5 Nne 3%3% 9%0% 0%9%6% 9%3% 6% IAIASidney Castana 6%3% 13%6% 16%3%22% 13%22% 9% IAIASioux Cedar City Rapids Sioux Gateway Airport 6%3% 13%0% 16%3%22% 6%22% 6% IAIASioux Cedar Ctr Rapids 2 Se Municipal Airport 9%6% 19%0% 16%6%16% 9%16% 13% IAIASpencer CEDAR RAPIDS1 N NO 1 3%3% 19%0% 6%13%16% 13%16% 16% IAIASpencer Chariton Municipal Airport 6%3% 9%3% 9%9%9% 19%13% 16% IAIASutherland CHARITON 1 E 3%3% 0%3% 0%13%9% 19%6% 19% IAIAToledo CHARLES 3N CITY 3%3% 3%6% 13%6%16% 9%16% 3% IAIATripoli Clarinda 3%3% 3%6% 6%13%13% 25%6% 16% IAIAWashington CRESCO 1 NE 6%3% 9%0% 16%3%22% 3%31% 3% IAIAWaterloo Davenport Municipal Municipal Airport Airport 3%3% 9%0% 6%3%9% 9%9% 13% IAIAWaukon Decorah 3%3% 0%3% 0%13%3% 9%0% 9% IAIAWebster DENISON City 3%3% 6%3% 6%9%19% 6%9% 9% IAIAWebster Des Moines City International Municipal Airport Airport 3%3% 0%3% 6%9%13% 19%9% 25% IAIAWinterset Dubuque Regional2Nnw Airport 3%3% 6%0% 9%0%16% 3%13% 3% ILIAAledo ELKADER 5 SSW 3%3% 3%3% 9%13%13% 13%13% 6% ILIABelleville EMMETSBURG (Siu Agronomy Farm) 3%3% 9%13% 3%9%25% 13%22% 13% ILIABig ESTHERVILLE Bend 2 N 6%3% 0%6% 3%6%9% 6%16% 13% ILIABloomington Estherville Municipal Normal Airport 6%3% 0%9% 6%9%9% 9%13% 3% ILIABondville FAIRFIELD 6%6% 0%13% 3%16%9% 25%13% 34% ILIABrookport Fayette Dam 52 16%3% 9%0% 19%0%31% 6%34% 6% ILIABrownstown FOREST CITY 2 NNE 6%3% 3%0% 3%0%19% 6%9% 6% ILIACahokia/ FORT DODGE St. Louis Downtown Airport 9%3% 16%6% 22%16%38% 16%41% 9% ILIACairo Fort Dodge 3 N Regional Airport 9%3% 13%3% 22%6%34% 9%41% 9% ILIACarbondale GILBERT 3%3% 3%3% 6%9%9% 16%16% 6% ILIACarbondale Gilmore Sewage Plt 13%3% 9%3% 19%0%19% 6%28% 6% ILIACarbondale GRINNELL 3Southern SW Illinois Airport 13%3% 6%3% 13%9%28% 6%28% 16% ILIACarlinville GRUNDY CENTER 3%3% 9%6% 13%3%19% 6%28% 9% ILIAChampaign/ GUTHRIE CENTER Urbana Willard Airport 6%3% 0%6% 6%9%13% 19%16% 16% ILIACharleston GUTTENBERG L & D 10 6%3% 13%0% 9%0%22% 9%25% 16% ILIAChenoa HAMPTON 6%3% 6%6% 9%3%6% 9%16% 9% ILIAChicago Harlan 1n Botanical Garden 3%3% 9%6% 6%3%13% 9%13% 6% ILIAChicago Harlan Municipal Midway AirportAirport 6%3% 6%6% 13%6%16% 13%25% 9% ILIAChicago Indianola O'Hare International Airport 3%3% 6%3% 6%9%16% 19%19% 13% ILIAChicago/ Iowa City AuroraMunicipal Municipal Airport Airport 3%3% 3%3% 3%3%6% 9%13% 25% ILIAChicago/ IOWA FALLS West Chicago Dupage Airport 3%3% 3%3% 3%13%6% 16%13% 6% ILIAChicago/ Jefferson Wheeling Pal-Waukee Airport 3%3% 6%13% 6%13%6% 19%13% 13% ILIAChicago/Waukegan Kanawha Regional Airport 3%3% 0%0% 3%0%6% 6%6% 3% ILIADanville Keosauqua 9%6% 6%16% 9%22%19% 25%16% 47% ILIADe Lamoni Kalb Municipal Airport 9%3% 3%6% 6%13%9% 19%9% 19% ILIADecatur Le Mars Airport 6%9% 3%13% 9%16%13% 16%13% 16% ILIADekalb Leon 6 Ese 3%3% 0%6% 3%16%0% 22%3% 22% ILIADekalb Lewis Taylor Municipal Airport 3%3% 0%6% 3%3%6% 13%9% 13% ILIADixon Logan Springs 3%13%3% 13% 3%13%13% 19%13% 19% ILIADwight MANCHESTER #2 3%6% 9%0% 3%3%9% 6%13% 6% ILIAElgin MAQUOKETA 4 W 6%3% 3%0% 0%3%6% 6%16% 6% ILIAFairfield Marshalltown Municipal Airport 6%3% 6%0% 6%6%19% 9%19% 3% ILIAFreeport Mason City 3%3% 0%9% 0%6%0% 9%6% 9% ILIAFreeport Mason City Waste Municipal Wtp Airport 3%3% 3%13% 3%3%9% 9%6% 6% ILIAGalesburg MOUNT AYR 6%3% 3%6% 9%9%9% 19%22% 16% ILIAHoopeston Muscatine 1 Ne 6%3% 3%6% 6%6%16% 13%19% 25% ILIAIllinois Nashua Valley Regional Airport 3%6% 3%3% 3%3%9% 6%19% 3% IL Jacksonville 2E 6% 6% 9% 13% 25% Page 2 HISTORICAL FREQUENCY OF HOT WEEK BY WEEK AND BY STATION (1980-2011) State City June 17-23 June 24-30 July 1-7 July 8-14 July 15-21 ILIAJerseyville Albia 3 Nne 2 Sw 3%6% 6%3% 16%13% 19%25% 13%28% ILIAJoliet ALGONA Brandon 3 W Rd Dam 0%9% 9%6% 6%3% 13% 3%16% ILIAKankakee Allison Metro Wastwtr 3%9% 3%16% 9% 6%13% 6%25% ILIAKaskaskia Ames Municipal Riv Nav Airport Lock 3%47% 3%47% 9%56% 13%63% 6%72% ILIAKewanee ANKENY 1 E 6%3% 3% 6%3% 22%13% 22%13% ILIAKilbourne Atlantic 1 Ne 3%6% 9%3% 13% 13%16% 16%22% ILIALawrenceville Audubon 1 Sse Vincennes International Airport 3%6% 9%6% 6%16% 13%22% 13%22% ILIALincoln Beaconsfield Logan County Airport 3%6% 3% 16%6% 19%13% 13%16% ILIAMattoon/ Bedford Charleston Coles County Airport 6%3% 6%3% 16%3% 19%13% 22%13% ILIAMinonk BELLE PLAINE 3%9% 3%6% 13% 16%19% 13%34% ILIAMoline Bloomfield Quad 1 WnwCity International Airport 3%13% 3%16% 16%9% 16%19% 25%31% ILIAMonmouth BOONE 3% 6%0% 6%0% 19%3% 13%9% ILIAMorrisonville BRITT 3%6% 13%6% 6%3% 9%19% 9%19% ILIAMt Calmar Carmel 3%22% 0%22% 0%31% 6%34% 0%28% ILIAMt CARROLL Carroll 3%9% 9%3% 9%3% 9% 13% ILIAMt Carroll Vernon Arthur 3 Ne N Neu Airport 6%9% 6% 6% 13%16% 3%16% ILIANashville Cascade 1E 3%6% 0%9% 9%13% 9%31% 6%28% ILIANormal Castana 4Ne 3%9% 6%13% 3%16% 13%19% 9%25% ILIAOlney Cedar Rapids 3%6% 0%3% 3% 6%13% 6%9% ILIAOttawa Cedar Rapids 5Sw Municipal Airport 3%6% 0% 6% 9%13% 13%16% ILIAPalestine CEDAR RAPIDS 2W NO 1 19%3% 0%22% 13%19% 13%34% 16%34% ILIAParis Chariton Wtr Wks 3% 3%6% 9% 19%22% 16% ILIAPark CHARITON Forest 1 E 3% 3% 13%6% 19%13% 19%13% ILIAPaw CHARLES Paw 2 CITY Nw 6%3% 6%0% 6%3% 9%3% 3% ILIAPaxton Clarinda 2 Wsw 6%3% 6%0% 13%6% 25%9% 16%16% ILIAPeoria CRESCO 1 NE 3% 0% 3%6% 3% 3%13% ILIAPeoria Davenport Greater Municipal Peoria Airport Airport 6%3% 0%3% 3% 9%13% 13%28% ILIAPerry Decorah 3% 3% 13%0% 9%6% 9%16% ILIAPontiac DENISON 3% 3% 9%16% 6%13% 9%16% ILIAPrinceville Des Moines 2W International Airport 6%3% 3% 9% 19%13% 25% ILIAQuincy Dubuque Municipal Regional Airport Airport 3% 0%3% 0%13% 3%25% 3%19% ILIARamsey ELKADER 5 SSW 3% 3%9% 13%6% 13%19% 6%19% ILIARantoul EMMETSBURG 6%3% 13%3% 9%3% 13% 13%16% ILIARend ESTHERVILLE Lake 2 N 9%3% 6% 6% 6%22% 13%22% ILIARochelle Estherville Municipal Municipal Airport Airport 3% 9%0% 9%3% 9%6% 3%9% ILIARockford FAIRFIELD Greater Rockford Airport 9%6% 13%3% 16%3% 25%9% 34%9% ILIASalem Fayette 13%3% 0%19% 0%22% 6%34% 6%25% ILIASpringfield FOREST CITY 2 NNE 6%3% 0%3% 0%3% 6%9% 6%16% ILIASpringfield FORT DODGE Capital Airport 6%3% 6%9% 16%9% 16%19% 9%16% ILIASt.