Appendix to 2012 Outlook Report: the Impact of Early Planting on Heat Risk for Corn Pollination (Issued 5/23)

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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 6%3% 0% 6% 9%13% 13%16% ILIAPalestine CEDAR RAPIDS 2W NO 1 3%19% 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 3%6% 6%0% 6%3% 9%3% 3% ILIAPaxton Clarinda 2 Wsw 3%6% 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 3%6% 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. Fort Charles Dodge Regional Airport 3% 3%0% 6%0% 9% 9%3% ILIAStelle GILBERT 9%3% 3% 9% 16%6% 6%13% ILIASterling Gilmore Rock Falls Airport 3% 3%0% 0%3% 6%9% 6%16% ILIAStockton GRINNELL 3 3Nne SW 3% 3%0% 9%3% 6%3% 16%3% ILIAStreamwood GRUNDY CENTER 13%3% 6%19% 3%16% 6%16% 9%34% ILIATuscola GUTHRIE CENTER 6%3% 6%16% 9%22% 19%25% 16%28% ILIAUrbana GUTTENBERG L & D 10 6%3% 0%6% 0%9% 9%13% 16% ILIAVandalia HAMPTON 6%3% 6%9% 3%9% 9%25% 9%22% ILIAWatseka Harlan 1n 2 Nw 9%3% 6% 3%6% 9% 6%16% ILIAWhite Harlan Hall Municipal 1 E Airport 9%3% 6%9% 6%9% 13%25% 9%13% INIAAngola Indianola 3% 3%0% 9%3% 19%3% 13%6% INIABloomington Iowa City Municipal Monroe Airport County Airport 3% 3% 3% 9% 25%13% INIABluffton IOWA FALLS 1 N 0%3% 3% 13%3% 16%6% 6%9% INIABrookville Jefferson 3% 13%3% 13%9% 19%22% 13%22% INIAColumbus Kanawha 3% 0% 0%3% 6%13% 3%13% INIACrawfordsville Keosauqua 5 S 6% 16%3% 22%3% 25%9% 47%9% INIAElwood Lamoni Municipal Airport 6%3% 6%3% 13%3% 19%16% 19%13% INIAEvansville Le Mars Regional Airport 13%9% 13% 16%25% 16%34% 16%25% INIAFort Leon Wayne 6 Ese International Airport 6%3% 6%3% 16%3% 22%9% 22%13% INIAFrankfort Lewis Disposal Plt 3% 6%0% 3% 13%6% 13% INIAFreelandville Logan 3%13% 13%3% 13%3% 19%13% 19%13% INIAGoshen MANCHESTER Municipal #2 Airport 3%6% 0%3% 3% 6%3% 6% INIAGreencastle MAQUOKETA 5 E4 W 3% 0%6% 3% 6%9% 6%13% INIAGreenfield Marshalltown Municipal Airport 6%3% 0%3% 6%3% 9%13% 3%16% INIAGreensburg Mason City 6%3% 9%0% 6% 9%6% 9%13% INIAHartford Mason City City Municipal 4 Ese Airport 3% 13%0% 3% 9%3% 6%13% INIAHuntington MOUNT AYR 6%3% 6% 9% 19%13% 16%22% INIAIndianapolis Muscatine Eagle Creek Airport 3% 6%3% 6%3% 13%3% 25%13% INIAIndianapolis Nashua International Airport 6% 3% 3%6% 6%9% 3%13% IN Indianapolis Se Side 3% 6% 3% 9% 16% IN Jamestown Utilities 3% 3% 6% 3% 9% Page 3 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

IN Kokomo Municipal Airport 3% 3% 3% 3% 9% IA Albia 3 Nne 3% 6% 16% 19% 13% IN La Porte 3% 0% 3% 3% 13% IA ALGONA 3 W 0% 9% 6% 13% 3% IN Lafayette 8 S 6% 6% 6% 6% 16% IA Allison 3% 3% 9% 6% 6% IN Lafayette Purdue University Airport 9% 13% 9% 13% 19% IA Ames Municipal Airport 3% 3% 9% 13% 6% IN Marion 2 N 6% 3% 3% 9% 13% IA ANKENY 6% 3% 6% 22% 22% IN Martinsville 2 Sw 3% 3% 3% 9% 13% IA Atlantic 1 Ne 3% 9% 13% 13% 16% IN Mount Vernon 9% 13% 13% 28% 22% IA Audubon 1 Sse 3% 9% 6% 13% 13% IN Muncie Delaware County Airport 6% 0% 6% 9% 16% IA Beaconsfield 3% 3% 16% 19% 13% IN New Castle 4 Sse 3% 0% 3% 6% 13% IA Bedford 6% 6% 16% 19% 22% IN Oolitic Purdue Exp Frm 3% 3% 3% 3% 13% IA BELLE PLAINE 3% 3% 13% 16% 13% IN Perrysville 4 Wnw 6% 6% 6% 16% 13% IA Bloomfield 1 Wnw 3% 3% 16% 16% 25% IN Plymouth 3% 3% 3% 6% 9% IA BOONE 3% 6% 6% 19% 13% IN Rensselaer 3% 6% 6% 9% 16% IA BRITT 3% 13% 6% 9% 9% IN Rochester 3% 3% 3% 13% 13% IA Calmar 3% 0% 0% 6% 0% IN Rushville 3% 3% 3% 6% 6% IA CARROLL 3% 9% 9% 9% 13% IN Seymour 2 N 3% 0% 6% 9% 6% IA Carroll Arthur N Neu Airport 6% 6% 6% 13% 3% IN Shelbyville Municipal Airport 3% 3% 6% 3% 9% IA Cascade 3% 0% 9% 9% 6% IN Shoals 8 S 3% 6% 6% 16% 16% IA Castana 3% 6% 3% 13% 9% IN South Bend Michiana Regional Airport 6% 3% 6% 9% 13% IA Cedar Rapids 3% 0% 3% 6% 6% IN Spencer 3% 0% 3% 9% 13% IA Cedar Rapids Municipal Airport 6% 0% 6% 9% 13% IN Terre Haute Hulman Regional Airport 6% 3% 6% 9% 16% IA CEDAR RAPIDS NO 1 3% 0% 13% 13% 16% IN Tipton 5 Sw 3% 0% 3% 6% 13% IA Chariton 3% 3% 9% 19% 16% IN Valparaiso Porter County Municipal Airport 3% 0% 3% 6% 9% IA CHARITON 1 E 3% 3% 13% 19% 19% IN Wanatah 2 Wnw 6% 9% 9% 9% 9% IA CHARLES CITY 3% 6% 6% 9% 3% IN West Lafayette 6 Nw 3% 3% 3% 9% 9% IA Clarinda 3% 6% 13% 25% 16% INIAWinchester CRESCO 1 NE Ap 3E 3%3% 0%0% 3%3%3% 3%9% 3% INIAYoung Davenport America Municipal 3 Ese Airport 6%3% 3%0% 3%3%3% 9%9% 13% KSIAAbilene Decorah 44%3% 50%3% 69%13%75% 9%81% 9% KSIAAnthony DENISON 2 W 44%3% 44%3% 72%9%72% 6%72% 9% KSIAAshland Des Moines International Airport 56%3% 63%3% 78%9%81% 19%88% 25% KSIAAtwood Dubuque 2Sw Regional Airport 41%3% 63%0% 81%0%72% 3%75% 3% KSIABeloit ELKADER 5 SSW 53%3% 56%3% 66%13%72% 13%78% 6% KSIAChanute EMMETSBURG Martin Johnson Airport 6%3% 22%13% 31%9%44% 13%53% 13% KSIACimarron ESTHERVILLE 2 N 47%3% 50%6% 69%6%69% 6%78% 13% KSIAClay Estherville Ctr Municipal Airport 31%3% 50%9% 63%9%63% 9%69% 3% KSIACoffeyville FAIRFIELD Municipal Airport 13%6% 28%13% 31%16%47% 25%63% 34% KSIAColby Fayette 28%3% 56%0% 59%0%59% 6%66% 6% KSIAColby FOREST 1Sw CITY 2 NNE 34%3% 59%0% 75%0%66% 6%63% 6% KSIAColumbus FORT DODGE 6%3% 19%6% 22%16%38% 16%53% 9% KSIAConcordia Fort Dodge Blosser Regional Municipal Airport Airport 31%3% 44%3% 47%6%59% 9%78% 9% KSIACouncil GILBERT Grove Lake 6%3% 25%3% 28%9%44% 16%56% 6% KSIADodge Gilmore City Regional Airport 53%3% 53%3% 59%0%72% 6%72% 6% KSIAEl GRINNELL Dorado 3 SW 22%3% 31%3% 38%9%50% 6%59% 16% KSIAElkhart GRUNDY CENTER 72%3% 72%6% 88%3%84% 6%88% 9% KSIAEllsworth GUTHRIE CENTER 47%3% 50%6% 59%9%53% 19%72% 16% KSIAEmporia GUTTENBERG 3 Nw L & D 10 3%3% 19%0% 31%0%44% 9%53% 16% KSIAEmporia HAMPTON Municipal Airport 3%3% 22%6% 25%3%38% 9%56% 9% KSIAGarden Harlan 1nCity 50%3% 50%6% 63%3%66% 9%69% 6% KSIAGarden Harlan MunicipalCity Regional Airport Airport 47%3% 56%6% 66%6%75% 13%75% 9% KSIAGirard Indianola 9%3% 28%3% 28%9%50% 19%53% 13% KSIAGoodland Iowa City RennerMunicipal Field Airport 25%3% 44%3% 63%3%69% 9%63% 25% KSIAGreat IOWA Bend FALLS Municipal Airport 38%3% 50%3% 59%13%63% 16%75% 6% KSIAHays Jefferson 47%3% 53%13% 59%13%69% 19%78% 13% KSIAHays Kanawha 1 S 53%3% 53%0% 69%0%75% 6%81% 3% KSIAHays Keosauqua Municipal Airport 50%6% 50%16% 59%22%69% 25%78% 47% KSIAHays Lamoni South Municipal Airport 25%3% 47%6% 44%13%59% 19%63% 19% KSIAHealy Le Mars 66%9% 59%13% 81%16%69% 16%78% 16% KSIAHerington Leon 6 Ese 22%3% 34%6% 47%16%53% 22%66% 22% KSIAHesston Lewis 28%3% 47%6% 59%3%59% 13%69% 13% KSIAHill Logan City Municipal Airport 44%13%53% 13% 63%13%75% 19%78% 19% KSIAHorton MANCHESTER #2 19%6% 25%0% 34%3%41% 6%63% 6% KSIAHutchinson MAQUOKETA 4 W 31%3% 44%0% 66%3%63% 6%66% 6% KSIAIndependence Marshalltown Municipal Airport 13%3% 19%0% 34%6%44% 9%59% 3% KSIAIola Mason 1 W City 6%3% 19%9% 25%6%34% 9%44% 9% KSIAKingman Mason City Municipal Airport 44%3% 56%13% 66%3%69% 9%69% 6% KSIALawrence MOUNT AYR Municipal Airport 6%3% 28%6% 25%9%47% 19%59% 16% KSIALiberal Muscatine 63%3% 66%6% 84%6%91% 13%88% 25% KSIALincoln Nashua 1 Se 72%6% 72%3% 69%3%78% 6%78% 3% KS Manhattan 16% 25% 34% 38% 69% KS Marion Reservoir 19% 41% 47% 56% 69% Page 4 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

KSIAMarysville Albia 3 Nne 16%3% 34%6% 16%34% 19%47% 13%66% KSIAMc ALGONA Donald 3 W 31%0% 53%9% 6%63% 13%72% 3%72% KSIAMcpherson Allison 44%3% 56%3% 9%59% 6%59% 6%69% KSIAMedicine Ames Municipal Lodge AsosAirport 50%3% 50%3% 9%72% 13%75% 6%75% KSIAMilford ANKENY Lake 25%6% 38%3% 6%41% 22%50% 22%66% KSIAMinneapolis Atlantic 1 Ne 53%3% 56%9% 13%69% 13%78% 16%78% KSIAMound Audubon Valley 1 Sse 3 Wsw 3% 19%9% 6%28% 13%50% 13%56% KSIANess Beaconsfield City 69%3% 69%3% 16%75% 19%81% 13%81% KSIANewton Bedford 41%6% 50%6% 16%63% 19%59% 22%66% KSIAOakley BELLE PLAINE4W 50%3% 53%3% 13%75% 16%63% 13%72% KSIAOberlin Bloomfield 1 Wnw 44%3% 66%3% 16%72% 16%63% 25%78% KSIAOlathe BOONE Johnson County Executive Airport 3% 6% 6%19% 19%34% 13%31% KSIAOlathe BRITT Johnson County Industrial Airport 3% 16%13% 6%25% 9%41% 9%38% KSIAOttawa Calmar 9%3% 13%0% 0%22% 6%41% 0%53% KSIAParsons CARROLL 13%3% 25%9% 9%38% 9%47% 13%66% KSIAParsons Carroll Arthur Tri-City N AirportNeu Airport 9%6% 25%6% 6%28% 13%44% 3%63% KSIAPerry Cascade Lake 3% 13%0% 9%22% 9%38% 6%44% KSIAPlainville Castana 4Wnw 44%3% 47%6% 3%56% 13%72% 9%69% KSIAPomona Cedar Rapids Lake 6%3% 19%0% 3%34% 6%41% 6%47% KSIARichfield Cedar Rapids 1 Ne Municipal Airport 66%6% 69%0% 6%78% 9%84% 13%91% KSIARossville CEDAR RAPIDS NO 1 6%3% 16%0% 13%25% 13%41% 16%44% KSIARussell Chariton Municipal Airport 47%3% 53%3% 9%72% 19%66% 16%78% KSIASalina CHARITON Municipal 1 E Airport 53%3% 56%3% 13%72% 19%81% 19%78% KSIAScandia CHARLES CITY 25%3% 44%6% 6%41% 9%53% 3%69% KSIASharon Clarinda Springs 59%3% 69%6% 13%78% 25%81% 16%81% KSIASilver CRESCO Lake 1 NE 6%3% 16%0% 3%31% 3%44% 3%50% KSIASmith Davenport Ctr Municipal Airport 56%3% 59%0% 3%63% 9%75% 13%81% KSIASt. Decorah John 38%3% 44%3% 13%59% 9%72% 9%75% KSIASterling DENISON 50%3% 56%3% 9%69% 6%66% 9%75% KSIASublette Des Moines 5E International Airport 53%3% 56%3% 9%66% 19%66% 25%81% KSIATopeka Dubuque Forbes Regional Field Airport 6%3% 22%0% 0%28% 3%41% 3%50% KSIATopeka ELKADER Municipal 5 SSW Airport 6%3% 25%3% 13%34% 13%44% 6%53% KSIATribune EMMETSBURG 34%3% 47%13% 9%66% 13%78% 13%75% KSIATribune ESTHERVILLE 1W 2 N 50%3% 53%6% 6%81% 6%81% 13%81% KSIATuttle Estherville Creek Municipal Lake Airport 13%3% 25%9% 9%34% 9%47% 3%53% KSIAUlysses FAIRFIELD 3Ne 66%6% 63%13% 16%84% 25%81% 34%88% KSIAWakeeney Fayette 47%3% 63%0% 0%69% 6%78% 6%81% KSIAWamego FOREST CITY 2 NNE 13%3% 31%0% 0%41% 6%47% 6%50% KSIAWashington FORT DODGE 28%3% 50%6% 16%56% 16%53% 9%66% KSIAWellington Fort Dodge Regional Airport 38%3% 44%3% 6%63% 9%72% 9%69% KSIAWichita GILBERT Jabata Airport 16%3% 38%3% 9%41% 16%59% 6%69% KSIAWichita Gilmore Mid-Continent Airport 41%3% 47%3% 0%59% 6%59% 6%69% KSIAWilson GRINNELL Lake 3 SW 50%3% 59%3% 9%72% 6%75% 16%75% KSIAWinfield GRUNDY Strother CENTER Field Airport 28%3% 41%6% 3%47% 6%56% 9%66% MIIAAdrian GUTHRIE Lenawee CENTER County Airport 6%3% 3%6% 9%3% 19%6% 16%6% MIIAAlma GUTTENBERG L & D 10 13%3% 0% 0%3% 9%13% 16%13% MIIAAlpena HAMPTON County Regional Airport 3% 0%6% 3% 9%6% 9% MIIAAnn Harlan Arbor 1n Municipal Airport 6%3% 0%6% 3%6% 9%6% 6%3% MIIAAsparagus Harlan Municipal Research Airport Farm 0%3% 0%6% 6%0% 13%0% 9%0% MIIAAutumn Indianola Vista Dairy 0%3% 0%3% 9%3% 19%3% 13%0% MIIABad Iowa Axe City Municipal Airport 3% 0%3% 3% 9%6% 25%3% MIIABaker IOWA DairyFALLS Farm 6%3% 0%3% 13%3% 16%3% 6% MIIABattle Jefferson Creek Kellogg Airport 0%3% 0%13% 13%3% 19%9% 13%6% MIIABenton Kanawha Harbor Ross Field 3% 3%0% 0%3% 6% 3%9% MIIABig Keosauqua Rapids Wtr Wks 6% 3%16% 22%3% 25%6% 47%0% MIIABloom Lamoni Dairy Municipal Farm Airport 0%3% 0%6% 13%3% 19%3% 19%0% MIIABob Le Mars Pagel Vineyard 3%9% 0%13% 16%3% 16%6% 16%3% MIIACadillac Leon 6 Ese 0%3% 0%6% 16%3% 22%0% 22%0% MIIACalhoun Lewis Co. Road Commission Garage 3% 0%6% 3% 13%3% 13%3% MIIACalhoun Logan Co. Road Commission Gravel Pit 3%13%0% 13% 13%3% 19%3% 19%0% MIIACaro MANCHESTER Tuscola Area #2 Airport 3%6% 0% 3% 6%3% 6%3% MIIACharlotte MAQUOKETA 4 W 3% 0% 3% 6% 6% MIIACheboygan Marshalltown Municipal Airport 3% 0% 3%6% 9%0% 3%0% MIIACherry Mason CityBay Orchards 0%3% 0%9% 6%0% 9%0% 9%0% MIIACherry Mason CityBlossom Municipal Orchards Airport 0%3% 0%13% 0%3% 9%0% 6%0% MIIACilley MOUNT Farms AYR 6%3% 3%6% 9%3% 19%3% 16%6% MIIACity Muscatine Of Fremont - Waste Water Treatment Facility 0%3% 0%6% 6%3% 13%0% 25%0% MIIACrop Nashua Production Services 6% 0%3% 3% 6%3% 3% MI Degrandchamps Farms 3% 0% 3% 6% 0% MI Detour Village 0% 0% 0% 0% 0% Page 5 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

MIIADetroit Albia 3 CityNne Airport 6%3% 0%6% 9%16%6% 19% 13%6% MIIADetroit ALGONA Metropolitan 3 W Airport 6%0% 0%9% 6% 6% 13% 3% MIIADetroit Allison Willow Run Airport 6%3% 3% 6%9%3% 6% 6% MIIADongvillo Ames Municipal Farms Airport 3% 0%3% 3%9%6% 13% 6%9% MIIADutchman ANKENY Tree Farms 0%6% 0%3% 0%6%0% 22% 22%0% MIIAEast Atlantic Michigan 1 Ne Grain 0%3% 0%9% 3%13%3% 13% 16%0% MIIAEast Audubon Tawas 1 Sse 0%3% 0%9% 3%6%3% 13% 13%6% MIIAEdward Beaconsfield Lowe Foundation 3% 0%3% 3%16%3% 19% 13%0% MIIAFlint Bedford Bishop International Airport 6% 0%6% 6%16%6% 19% 22%3% MIIAFrankfort BELLE PLAINE 2Ne 0%3% 0%3% 0%13%0% 16% 13%0% MIIAGaerthe Bloomfield Orchards 1 Wnw 0%3% 0%3% 0%16%0% 16% 25%0% MIIAGaylord BOONE Otsego County Airport 0%3% 0%6% 0%6%0% 19% 13%0% MIIAGladwin BRITT 6%3% 0%13% 3%6%6% 9% 9%6% MIIAGrand Calmar Rapids Gerald R Ford International 6%3% 0% 3%0%6% 0%6% MIIAGrandview CARROLL Orchards 3% 3%9% 3%9%6% 9% 13%3% MIIAGrosse Carroll PointeArthur FarmsN Neu Airport 3%6% 6% 16%6%13% 3%16% MIIAHancock Cascade Turfgrass Research Center At Msu 0%3% 0% 3%9%3% 9% 6%0% MIIAHarbor Castana Beach 1 Sse 0%3% 0%6% 0%3%0% 13% 9%3% MIIAHart Cedar Rapids 0%3% 0% 0%3%0% 6% 6%0% MIIAHastings Cedar Rapids Municipal Airport 3%6% 0% 6% 6% 9% 13%6% MIIAHelmreich CEDAR RAPIDS Farms NO 1 6%3% 0% 3%13%3% 13% 16%3% MIIAHesperia Chariton 4 Wnw 3% 0%3% 0%9%3% 19% 16%0% MIIAHigh CHARITON Acres Fruit 1 E Farm 0%3% 0%3% 3%13%3% 19% 19%0% MIIAHillsdale CHARLES Municipal CITY Airport 3% 0%6% 3%6%3% 9% 3% MIIAHoughton Clarinda Lake Roscommon Co Airport 6%3% 0%6% 3%13%3% 25% 16%0% MIIAIonia CRESCO 2 Ssw 1 NE 6%3% 0% 3% 6% 3% 3%9% MIIAIron Davenport Mountain Municipal Ford Airport Airport 0%3% 0% 3% 0% 9% 13%9% MIIAJackson Decorah Reynolds Field 3%3% 0%3% 3%13%6% 9% 9%3% MIIAKalamazoo DENISON Battle Creek International Airport 3%3% 3% 3%9%6% 9%0% MIIAKalamazoo Des Moines Nature International Center Airport 3%3% 0%3% 3%9%3% 19% 25%3% MIIAKalkaska Dubuque Regional Airport 0%3% 0% 3%0%0% 3% 3%0% MIIAKraft ELKADER Orchards 5 SSW 0%3% 0%3% 3%13%0% 13% 6%0% MIIAKropf EMMETSBURG Farms 0%3% 0%13% 3%9%3% 13% 13%0% MIIAKroupa ESTHERVILLE Farms 2 N 0%3% 0%6% 0%6%0% 6% 13%3% MIIAKrueger Estherville Farms Municipal Airport 0%3% 0%9% 0%9%0% 9% 3% MIIALake FAIRFIELD City Exp Farm 6% 0%13% 3%16%0% 25% 34%0% MIIALansing Fayette Capital City Airport 6%3% 0% 3%0%6% 6%3% MIIALavern FOREST Eldred CITY Farm2 NNE 3%3% 0% 3%0%3% 6% 6%0% MIIALeipprandt FORT DODGE Farms 0%3% 0%6% 3%16%3% 16% 9%0% MIIALong'S Fort Dodge Orchard Regional & Farm Airport 0%3% 0%3% 3%6%3% 9% 9%0% MIIAMandigo GILBERT Farms 3%3% 0%3% 3%9%3% 16% 6%0% MIIAManistique Gilmore 0%3% 0%3% 0% 0% 6% 6%0% MIIAMaple GRINNELL City 13 E SW 0%3% 3% 3%9%6% 16%3% MIIAMbg GRUNDY Marketing CENTER 3%3% 3%6% 3% 9% 6% 9%6% MIIAMenominee GUTHRIE CENTER County Extension 0%3% 0%6% 3%9%0% 19% 16%6% MIIAMeylan GUTTENBERG Farms L & D 10 6%3% 0% 3%0%3% 9% 16%3% MIIAMichigan HAMPTON Celery Cooperative 0%3% 0%6% 3% 3% 9% 9%0% MIIAMick Harlan Farms 1n 0%3% 0%6% 0%3%0% 9% 6%0% MIIAMidland Harlan Municipal Airport 13%3% 6% 6% 6% 13% 9%6% MIIAMount Indianola Clemens Selfridge Field 3%3% 0%3% 6%9%9% 19% 13%3% MIIAMsu Iowa Clarksville City Municipal Horticulture Airport Experiment Station 0%3% 0%3% 3% 3% 9% 25%0% MIIAMsu IOWA Kellogg FALLS Biological Station 0%3% 0%3% 3%13%3% 16% 6%0% MIIAMsu Jefferson Montcalm Research Farm 0%3% 0%13% 3%13%3% 19% 13%0% MIIAMsu Kanawha Muck Research Farm 0%3% 0% 3%0%3% 6% 3% MIIAMsu Keosauqua Saginaw Valley Beet & Bean Research Farm 6%6% 0%16% 3%22%3% 25% 47%3% MIIAMsu Lamoni Southwest Municipal Mi AirportResearch & Extension Center 3%3% 0%6% 3%13%6% 19% 19%3% MIIAMsu Le Mars Tree Improvement Center 0%9% 0%13% 0%16%0% 16% 16%0% MIIAMsu Leon Trevor 6 Ese Nichols Research Complex 0%3% 0%6% 3%16%0% 22% 22%0% MIIAMuskegon Lewis County Airport 3%3% 0%6% 3% 0% 13% 13%0% MIIANorthland Logan Farms Inc. 0%13%0% 13% 3%13%3% 19% 19%0% MIIANorthwest MANCHESTER Michigan #2 Horticultural Research Station 0%6% 0% 0%3%0% 6% 6%0% MIIAOnaway MAQUOKETA 4N 4 W 0%3% 3%0% 6%3%6% 6%0% MIIAOrchard Marshalltown View Municipal Airport 0%3% 0% 3%6%0% 9% 3%0% MIIAOwosso Mason City Wwtp 3%3% 0%9% 3%6%6% 9% 9%3% MIIAOxley Mason Farms City Municipal Airport 3%3% 0%13% 3% 3% 9% 6%0% MIIAParadis MOUNT Farms AYR 0%3% 0%6% 0%9%0% 19% 16%0% MIIAPellston Muscatine Regional Airport 0%3% 0%6% 3%6%0% 13% 25%0% MIIAPierce Nashua Cedar Creek Institute 0%6% 0%3% 3% 3% 6% 3% MI Pioneer/Dupont - Agriculture & Nutrition Research Station 0% 0% 3% 3% 0% MI Pioneer/Dupont - Constantine Production Plant 3% 0% 3% 6% 9% Page 6 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

IAMI AlbiaPontiac 3 NneOakland County International Airport 0%3% 0%6% 6%16%3% 19%0% 13% IAMI ALGONAPort Hope 3 W 0% 0%9% 0%6%0% 13%0% 3% IAMI AllisonPort Huron 0%3% 0%3% 9% 6% 3% 6% IAMI AmesPrairie Municipal Corners Airport 3% 0%3% 3%9%3% 13%3% 6% IAMI ANKENYSandusky City Airport 0%6% 0%3% 3%6%3% 22%3% 22% IAMI AtlanticSheridan 1 FarmsNe 6%3% 0%9% 3%13%3% 13%3% 16% IAMI AudubonSolstice Farms 1 Sse 0%3% 0%9% 3%6%0% 13%0% 13% IAMI BeaconsfieldStandish 5Sw 0%3% 0%3% 3%16%6% 19%6% 13% IAMI BedfordThree Rivers 6% 9%6% 3%16%9% 19%6% 22% IAMI BELLETraverse PLAINE City Cherry Capital 0%3% 3% 3%13%6% 16%9% 13% IAMI BloomfieldUsda Natural 1 Wnw Resources Conservation Service 0%3% 0%3% 3%16%0% 16%0% 25% IAMI BOONEUsda/Nrcs Office 3% 0%6% 3%6%3% 19%3% 13% IAMI BRITTVannortwick Farms 0%3% 0%13% 0%6%0% 9%0% 9% IAMI CalmarWest Branch 3Se 0%3% 0% 3%0%6% 0% IAMI CARROLLWest View Orchard 0%3% 0%9% 3%9%3% 9%0% 13% IAMI CarrollWindswept Arthur Farms N Neu Airport 0%6% 0%6% 3%6%3% 13%3% IAMI CascadeWinkel Orchards 3% 0% 3%9%6% 9%0% 6% IAMN CastanaAlbert Lea 3 Se 3% 9%6% 6%3%6% 13%6% 9% IAMN CedarAlexandria Rapids Municipal Airport 6%3% 3%0% 6%3%3% 6%0% 6% IAMN CedarArtichoke Rapids Lake Municipal Airport 3%6% 3%0% 6% 3% 9%0% 13% IAMN CEDARAustin 3 RAPIDS S NO 1 3% 6%0% 3%13%0% 13%0% 16% IAMN CharitonAustin Municipal Airport 3% 0%3% 3%9%3% 19%0% 16% IAMN CHARITONBrowns Valley 1 E 6%3% 9%3% 16%13%13% 19%19% 19% IAMN CHARLESBuffalo CITY 3% 0%6% 13%6%6% 9%3% IAMN ClarindaByron 3 N 3% 3%6% 6%13%3% 25%0% 16% IAMN CRESCOCaledonia 1 NE 3% 0% 3% 6% 3%0% 3% IAMN DavenportCollegeville Municipal St John Airport 6%3% 3%0% 3% 3% 9%9% 13% IAMN DecorahFairmont 3% 6%3% 3%13%3% 9%6% 9% IAMN DENISONFaribault Municipal Airport 6%3% 0%3% 9% 6% 6% 9% IAMN DesForest Moines Lake International5Ne Airport 9%3% 6%3% 6%9%13% 19%9% 25% IAMN DubuqueGaylord Regional Airport 6%3% 6%0% 9%0%16% 3%9% 3% IAMN ELKADERGrand Meadow 5 SSW 3% 0%3% 9%13%0% 13%3% 6% IAMN EMMETSBURGHutchinson Municipal Butler Airport 3% 3%13% 9% 6% 13%6% 13% IAMN ESTHERVILLELong Prairie 2 N 3% 3%6% 6% 3% 6%0% 13% IAMN EsthervilleLower St Anthony Municipal Falls Airport 13%3% 13%9% 22%9%34% 9%16% 3% IAMN FAIRFIELDMadison Sewage Plant 9%6% 9%13% 19%16%19% 25%13% 34% IAMN FayetteMankato Municipal Airport 3% 0% 9%0%9% 6%3% 6% IAMN FORESTMelrose CITY 2 NNE 6%3% 0% 9%0%3% 6%3% 6% IAMN FORTMinneapolis DODGE Crystal Airport 3% 3%6% 9%16%6% 16% 9% IAMN FortMinneapolis Dodge RegionalFlying Cloud Airport Airport 3% 3% 9%6%6% 9%9% IAMN GILBERTMinneapolis-St. Paul International Airport 3% 3% 9% 9% 16%6% IAMN GilmoreMontevideo 1 Sw 9%3% 3% 16%0%9% 6%9% 6% IAMN GRINNELLMora 3 SW 3% 0%3% 3%9%3% 6%0% 16% IAMN GRUNDYMorris Wc CENTER Exp Stn 3% 9%6% 3% 3% 6%0% 9% IAMN GUTHRIEOlivia Regional CENTER Airport 6%3% 3%6% 9% 13% 19%9% 16% IAMN GUTTENBERGOwatonna L & D 10 6%3% 9%0% 13%0%9% 6% 16% IAMN Pipestone HAMPTON 3% 6% 9%3%16% 9%13% 9% IAMN Preston Harlan 1n 3% 0%6% 9%3%3% 9%6% IAMN Red Harlan Wing Municipal Regional Airport Airport 3% 0%6% 9%6%6% 13%9% IAMN Redwood Indianola Falls Municipal Airport 9%3% 13%3% 13%9%13% 19%16% 13% IAMN Rochester Iowa City Municipal International Airport Airport 0%3% 3% 3% 0% 9%0% 25% IAMN Saint IOWA Cloud FALLS Regional Airport 3% 0%3% 3%13%9% 16% 6% IAMN St. Jefferson Paul Downtown Airport 3% 3%13% 9%13%6% 19%9% 13% IAMN Vadnais Kanawha Lake 3% 3%0% 13%0%9% 6%9% 3% IAMN Waseca Keosauqua Exp Stn 6% 9%16% 6%22%6% 25%0% 47% IAMN Wheaton Lamoni Municipal Airport 6%3% 9%6% 13%13%13% 19%6% 19% IAMN Wild Le Mars River State Park 6%9% 0%13% 6%16%0% 16%3% 16% IAMN Winnebago Leon 6 Ese 3% 6% 6%16%6% 22%6% 22% IAMN Worthington Lewis 2 Nne 3% 9%6% 3% 16% 13%6% 13% IAMN Zumbrota Logan 3%13%3% 13% 16%13%6% 19%6% 19% IAMO Amity MANCHESTER 4 Ne #2 6% 6%0% 16%3%16% 6%38% 6% IAMO Appleton MAQUOKETA City 4 W 3% 6%0% 22%3%38% 6%34% 6% IAMO Bethany Marshalltown Municipal Airport 3% 6%0% 16%6%22% 9%28% 3% IAMO Brookfield Mason City 3% 6%9% 16%6%22% 9%28% 9% IAMO Brunswick Mason City Municipal Airport 3% 9%13% 9%3%16% 9%28% 6% IAMO Butler MOUNT 4W AYR 6%3% 19%6% 22%9%41% 19%47% 16% IAMO Canton Muscatine L&D 20 9%3% 13%6% 19%6%31% 13%31% 25% IAMO Cape Nashua Girardeau Municipal Airport 25%6% 22%3% 31%3%44% 6%38% 3% MO Carrollton 3% 16% 28% 41% 53% MO Caruthersville 28% 28% 38% 50% 47% Page 7 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 Albia 3 Nne 3% 6% 16% 19% 13% MO Chillicothe 9% 13% 22% 38% 44% IA ALGONA 3 W 0% 9% 6% 13% 3% MO Chillicothe Agri-Science Center 3% 6% 22% 28% 38% IA Allison 3% 3% 9% 6% 6% MO Columbia Regional Airport 3% 6% 13% 16% 34% IA Ames Municipal Airport 3% 3% 9% 13% 6% MO Conception 3% 6% 13% 22% 22% IA ANKENY 6% 3% 6% 22% 22% MO Doniphan 25% 31% 28% 53% 53% IA Atlantic 1 Ne 3% 9% 13% 13% 16% MO Eldon 3% 9% 16% 28% 50% IA Audubon 1 Sse 3% 9% 6% 13% 13% MO Eldorado Springs 6% 19% 31% 41% 50% IA Beaconsfield 3% 3% 16% 19% 13% MO Elm 3% 13% 16% 28% 31% IA Bedford 6% 6% 16% 19% 22% MO Fredericktown 9% 16% 19% 31% 34% IA BELLE PLAINE 3% 3% 13% 16% 13% MO Freedom 3% 13% 16% 31% 34% IA Bloomfield 1 Wnw 3% 3% 16% 16% 25% MO Fulton 3% 6% 9% 16% 41% IA BOONE 3% 6% 6% 19% 13% MO Galena 9% 22% 19% 28% 41% IA BRITT 3% 13% 6% 9% 9% MO Hamilton 2 W 3% 6% 13% 25% 31% IA Calmar 3% 0% 0% 6% 0% MO Hannibal Wtr Wks 3% 6% 9% 25% 22% IA CARROLL 3% 9% 9% 9% 13% MO Higginsville 3% 6% 9% 16% 22% IA Carroll Arthur N Neu Airport 6% 6% 6% 13% 3% MO Independence 3% 9% 16% 25% 34% IA Cascade 3% 0% 9% 9% 6% MO Jackson 38% 38% 53% 59% 66% IA Castana 3% 6% 3% 13% 9% MO Jefferson City Wtp 3% 9% 19% 34% 47% IA Cedar Rapids 3% 0% 3% 6% 6% MO Joplin Municipal Airport 6% 22% 22% 41% 53% IA Cedar Rapids Municipal Airport 6% 0% 6% 9% 13% MO Kansas City Downtown Airport 9% 19% 31% 50% 66% IA CEDAR RAPIDS NO 1 3% 0% 13% 13% 16% MO Kansas City International Airport 3% 13% 25% 31% 44% IA Chariton 3% 3% 9% 19% 16% MO Kirksville 3% 6% 16% 9% 25% IA CHARITON 1 E 3% 3% 13% 19% 19% MO Kirksville Regional Airport 3% 6% 3% 16% 19% IA CHARLES CITY 3% 6% 6% 9% 3% MO Lamar 6% 16% 16% 25% 41% IA Clarinda 3% 6% 13% 25% 16% MO Lees Summit Reed Wr 3% 9% 13% 31% 25% IA CRESCO 1 NE 3% 0% 3% 3% 3% MO Lockwood 3% 13% 16% 31% 53% IA Davenport Municipal Airport 3% 0% 3% 9% 13% MO Long Branch Reservoir 9% 16% 25% 34% 44% IA Decorah 3% 3% 13% 9% 9% MO Mansfield 3% 6% 9% 13% 34% IA DENISON 3% 3% 9% 6% 9% MO Marshall 3% 6% 16% 25% 34% IA Des Moines International Airport 3% 3% 9% 19% 25% MO Marshfield 3% 16% 9% 13% 25% IA Dubuque Regional Airport 3% 0% 0% 3% 3% MO Maryville 2 E 3% 6% 22% 28% 38% IA ELKADER 5 SSW 3% 3% 13% 13% 6% MO Memphis 3% 9% 13% 19% 31% IA EMMETSBURG 3% 13% 9% 13% 13% MO Moberly 3% 9% 13% 19% 38% IA ESTHERVILLE 2 N 3% 6% 6% 6% 13% MO Mt Vernon M U Sw Ctr 6% 22% 16% 25% 41% IA Estherville Municipal Airport 3% 9% 9% 9% 3% MO Neosho 3% 9% 22% 28% 38% IA FAIRFIELD 6% 13% 16% 25% 34% MO Nevada Wtp 13% 25% 25% 41% 50% IA Fayette 3% 0% 0% 6% 6% MO New Franklin 1 W 3% 6% 13% 25% 38% IA FOREST CITY 2 NNE 3% 0% 0% 6% 6% MO Perryville Water Plant 16% 19% 25% 38% 34% IA FORT DODGE 3% 6% 16% 16% 9% MO Poplar Bluff 28% 31% 34% 56% 50% IA Fort Dodge Regional Airport 3% 3% 6% 9% 9% MO Poplar Bluff Municipal Airport 9% 13% 22% 38% 41% IA GILBERT 3% 3% 9% 16% 6% MO Rockport 3% 9% 22% 34% 38% IA Gilmore 3% 3% 0% 6% 6% MO Rolla Uni Of Missouri 6% 13% 16% 31% 44% IA GRINNELL 3 SW 3% 3% 9% 6% 16% MO Salisbury 3% 6% 25% 19% 38% IA GRUNDY CENTER 3% 6% 3% 6% 9% MO Saverton L&D 22 9% 22% 28% 34% 41% IA GUTHRIE CENTER 3% 6% 9% 19% 16% MO Sedalia Memorial Airport 3% 9% 19% 28% 38% IA GUTTENBERG L & D 10 3% 0% 0% 9% 16% MO Spickard 7 W 3% 6% 19% 25% 47% IA HAMPTON 3% 6% 3% 9% 9% MO Springfield Regional Airport 3% 6% 16% 22% 34% IA Harlan 1n 3% 6% 3% 9% 6% MO St Charles 7 Ssw 6% 19% 19% 38% 47% IA Harlan Municipal Airport 3% 6% 6% 13% 9% MO St. Joseph 3% 6% 13% 13% 31% IA Indianola 3% 3% 9% 19% 13% MO St. Louis Lambert International Airport 16% 25% 31% 44% 56% IA Iowa City Municipal Airport 3% 3% 3% 9% 25% MO Vandalia 6% 6% 16% 19% 25% IA IOWA FALLS 3% 3% 13% 16% 6% MO Versailles 2 W 3% 6% 6% 13% 22% IA Jefferson 3% 13% 13% 19% 13% MO Vichy Rolla National Airport 3% 9% 16% 25% 34% IA Kanawha 3% 0% 0% 6% 3% MO Wappapello Dam 28% 31% 38% 66% 63% IA Keosauqua 6% 16% 22% 25% 47% MO Weldon Spring Nws 3% 9% 9% 31% 34% IA Lamoni Municipal Airport 3% 6% 13% 19% 19% MO West Plains 13% 16% 16% 34% 53% IA Le Mars 9% 13% 16% 16% 16% MO West Plains Municipal Airport 6% 13% 9% 19% 41% IA Leon 6 Ese 3% 6% 16% 22% 22% MO Whiteman Afb 3% 9% 22% 19% 38% IA Lewis 3% 6% 3% 13% 13% NE Ainsworth 6% 19% 16% 22% 41% IA Logan 13% 13% 13% 19% 19% NE Alliance Municipal Airport 19% 19% 44% 34% 47% IA MANCHESTER #2 6% 0% 3% 6% 6% NE Alliance North 9% 19% 44% 25% 44% IA MAQUOKETA 4 W 3% 0% 3% 6% 6% NE Alliance West 6% 19% 38% 31% 44% IA Marshalltown Municipal Airport 3% 0% 6% 9% 3% NE Arapahoe Prairie 13% 16% 41% 34% 56% IA Mason City 3% 9% 6% 9% 9% NE Arthur 9% 16% 34% 22% 41% IA Mason City Municipal Airport 3% 13% 3% 9% 6% NE Arthur 13% 19% 44% 25% 59% IA MOUNT AYR 3% 6% 9% 19% 16% NE Auburn 5 Ese 9% 19% 31% 34% 47% IA Muscatine 3% 6% 6% 13% 25% NE Barta 3% 9% 9% 19% 38% IA Nashua 6% 3% 3% 6% 3% NE Bartlett 4 S 13% 22% 31% 31% 47% NE Beatrice 6% 25% 22% 38% 44% NE Beatrice 1 N 16% 31% 31% 41% 59% Page 8 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

NEIABellevue Albia 3 Nne Offutt Afb 6%3% 6%9% 16% 19%16% 13%28% NEIABenkelman ALGONA 3 W 38%0% 9%59% 6%75% 13%75% 3%72% NEIABroken Allison Bow Municipal Airport 6%3% 3%19% 9%13% 6%25% 6%34% NEIABrunswick Ames Municipal Airport 3% 3%16% 9%19% 13%16% 6%22% NEIAButte ANKENY 9%6% 3%19% 6%28% 22%28% 22%47% NEIACanaday Atlantic 1Steam Ne Plt 13%3% 9%19% 13%25% 13%34% 16%34% NEIACentral Audubon City 1 Sse 6%3% 9%13% 6%13% 13%19% 13%22% NEIAChadron Beaconsfield Municipal Airport 9%3% 3%25% 16%50% 19%47% 13%59% NEIAChampion Bedford 19%6% 6%22% 16%53% 19%56% 22%63% NEIAClay BELLE Center PLAINE (Sc) 9%3% 3%19% 13% 16%19% 13%38% NEIAClay Bloomfield Ctr 1 Wnw 16%3% 3%28% 16%22% 16%34% 25%50% NEIAColumbus BOONE 3 Ne 19%3% 6%22% 6%38% 19%28% 13%41% NEIAConcord BRITT (Ne) 3% 13%6% 6%13% 9%16% 9%13% NEIACulbertson Calmar 41%3% 0%47% 0%66% 6%63% 0%72% NEIACurtis CARROLL 16%3% 9%31% 9%31% 9%44% 13%50% NEIADalton Carroll Arthur N Neu Airport 6% 6%13% 6%34% 13%22% 3%31% NEIADavid Cascade City 6%3% 0%16% 9%25% 9%25% 6%34% NEIADickens Castana 13%3% 6%16% 3%28% 13%38% 9%50% NEIAElgin Cedar Rapids 6%3% 0%9% 3%19% 6%19% 6%25% NEIAFairbury Cedar Rapids Municipal Airport 19%6% 0%34% 6%34% 9%53% 13%63% NEIAFairmont CEDAR RAPIDS NO 1 6%3% 0%28% 13%25% 13%28% 16%44% NEIAFalls Chariton City Brenner Airport 19%3% 3%31% 9%41% 19%41% 16%63% NEIAFranklin CHARITON #2 1 E 28%3% 3%41% 13%50% 19%47% 19%59% NEIAFremont CHARLES CITY 6%3% 6%22% 6%28% 9%28% 3%50% NEIAGeneva Clarinda 3% 6%19% 13%16% 25%31% 16%44% NEIAGordon CRESCO 1 NE 3% 0%22% 3%28% 3%28% 3%47% NEIAGothenburg Davenport Municipal Airport 9%3% 0%28% 3%28% 9%28% 13%47% NEIAGrand Decorah Island 6%3% 3%19% 13%16% 9%25% 9%25% NEIAGrand DENISON Island Central Nebraska Regional Airport 16%3% 3%38% 9%28% 6%38% 9%53% NEIAGreeley Des Moines International Airport 9%3% 3%16% 9%22% 19%22% 25%47% NEIAGudmundsens Dubuque Regional Airport 3% 0%13% 0%19% 3%22% 3%31% NEIAHalsey ELKADER 5 SSW 6%3% 3%19% 13%19% 13%25% 6%44% NEIAHarrisburg EMMETSBURG 12Wnw 13%3% 13%16% 9%41% 13%38% 13%44% NEIAHarrison ESTHERVILLE 2 N 3% 6%13% 6%25% 6%22% 13%34% NEIAHastings Estherville 4 NMunicipal Airport 28%3% 9%31% 9%25% 9%31% 3%50% NEIAHastings FAIRFIELD Municipal Airport 16%6% 13%25% 16%19% 25%38% 34%47% NEIAHayes Fayette Ctr 19%3% 0%28% 0%53% 6%50% 6%63% NEIAHebron FOREST CITY 2 NNE 22%3% 0%41% 0%41% 6%50% 6%63% NEIAHemingford FORT DODGE 6%3% 6%19% 16%25% 16%22% 9%50% NEIAHoldrege Fort Dodge Regional Airport 16%3% 3%31% 6%22% 9%31% 9%50% NEIAHoldrege GILBERT 16%3% 3%31% 9%22% 16%31% 6%53% NEIAHoldrege Gilmore 4N 9%3% 3%19% 0%16% 6%22% 6%31% NEIAImperial GRINNELL Municipal 3 SW Airport 19%3% 3%41% 9%56% 6%56% 16%59% NEIAIndian GRUNDY Cave CENTER St. Park 3% 6%16% 3%31% 6%31% 9%41% NEIAKearney GUTHRIE CENTER 9%3% 6%19% 9%16% 19% 16%31% NEIAKimball GUTTENBERG 2 N L & D 10 13%3% 0%19% 0%41% 9%38% 16%47% NEIAKingsley HAMPTON Dam 25%3% 6%31% 3%53% 9%47% 9%59% NEIALexington Harlan 1n 16%3% 6%22% 3%19% 9%31% 6%38% NEIALincoln Harlan Municipal Airport 13%3% 6%31% 6%22% 13%31% 9%53% NEIALincoln Indianola 82E 20S 9%3% 3%25% 9%19% 19%25% 13%41% NEIALoup Iowa City Municipal Airport 13%3% 19%3% 3%19% 9%28% 25%38% NEIAMc IOWA Cook FALLS 22%3% 41%3% 13%59% 16%63% 6%66% NEIAMead Jefferson Agro Farm 13%3% 25%13% 13%25% 19%19% 13%44% NEIAMead Kanawha Turf Farm 6%3% 19%0% 0%9% 6%19% 3%31% NEIAMedicine Keosauqua Creek Dam 25%6% 34%16% 22%31% 25%47% 47%59% NEIAMinden Lamoni Municipal Airport 9%3% 22%6% 13%16% 19%28% 19%34% NEIAMinden Le Mars 22%9% 34%13% 16%34% 16%38% 16%53% NEIAMitchell Leon 6 EseFarms 16%3% 19%6% 16%44% 22%28% 22%44% NEIAMonroe Lewis 6%3% 13%6% 3%22% 13%19% 13%31% NEIANebraska Logan City 3%13%22% 13% 13%22% 19%25% 19%38% NEIANebraska MANCHESTER City 2N #2 3%6% 16%0% 3%22% 6%28% 6%41% NEIANorfolk MAQUOKETA Karl Stefan 4 W Mem Airport 6%3% 19%0% 3%19% 6%19% 6%34% NEIANorth Marshalltown Platte Municipal Airport 13%3% 25%0% 6%38% 9%38% 3%47% NEIANorth Mason Platte City Regional Airport 13%3% 22%9% 6%34% 9%47% 9%53% NEIAOakdale Mason City Municipal Airport 6%3% 22%13% 3%13% 9%16% 6%22% IA MOUNT AYR 3% 6% 9% 19% 16% NE Omaha Eppley Airfield 9% 19% 25% 22% 34% IA Muscatine 3% 6% 6% 13% 25% NE Oneill 6% 19% 9% 19% 41% IA Nashua 6% 3% 3% 6% 3% NE Ord 6% 25% 28% 31% 44% NE Osceola 9% 19% 25% 28% 16% NE Oxford 7 Nw 19% 41% 44% 38% 59% Page 9 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

NEIAPawnee Albia 3 NneCity 13%3% 22%6% 41%16%47% 19% 13%56% NEIARed ALGONA Cloud 3 W 22%0% 34%9% 44%6%47% 13% 3%63% NEIAScottsbluff Allison 19%3% 19%3% 41%9%38% 6% 6%47% NEIAScottsbluff Ames Municipal W B HeiligAirport Field 19%3% 31%3% 63%9%56% 13% 6%56% NEIASeward ANKENY 9%6% 25%3% 28%6%31% 22% 22%41% NEIAShelton Atlantic 1 Ne 6%3% 16%9% 13% 28% 13% 16%25% NEIASidney Audubon 1 Sse 9%3% 16%9% 41%6%44% 13% 13%50% NEIASidney Beaconsfield Municipal Airport 19%3% 25%3% 44%16%44% 19% 13%56% NEIASmithfield Bedford 6% 16%6% 16% 25% 19% 22%28% NEIAStapleton BELLE PLAINE 5 W 13%3% 31%3% 38%13%38% 16% 13%59% NEIASuperior Bloomfield 4E 1 Wnw 28%3% 53%3% 53%16%47% 16% 25%66% NEIASyracuse BOONE 19%3% 28%6% 34%6%31% 19% 13%66% NEIATecumseh BRITT 1 S 6%3% 25%13% 38%6%31% 9% 9%59% NEIATekamah Calmar Municipal Airport 16%3% 16%0% 16%0%13% 6% 0%28% NEIATrenton CARROLL Dam 34%3% 56%9% 75%9%66% 9% 13%72% NEIAValentine Carroll Arthur Miller N Field Neu Airport 16%6% 28%6% 47%6%31% 13% 3%63% NEIAWakefield Cascade 9%3% 13%0% 22%9%19% 9% 6%28% NEIAWayne Castana 3% 22%6% 13%3%13% 9%19% NEIAWest Cedar Point Rapids 6%3% 13%0% 16%3%16% 6% 6%19% NEIAYork Cedar Rapids Municipal Airport 6% 13%0% 16%6%25% 9% 13%28% OHIAAirborne CEDAR RAPIDS Airpark NOAirport 1 0%3% 0% 6%13%3% 13% 16%6% OHIAAkron Chariton Akron-Canton Regional Airport 3% 0%3% 3%9%3% 19% 16%3% OHIABellefontaine CHARITON 1 E 3% 0%3% 3%13%3% 19% 19%9% OHIABucyrus CHARLES CITY 3% 0%6% 6% 3% 9% 3%6% OHIACambridge Clarinda 6%3% 3%6% 3%13%3% 25% 16%6% OHIAChardon CRESCO 1 NE 0%3% 0% 0%3%0% 3% 3%0% OHIACheviot Davenport Municipal Airport 6%3% 3%0% 6%3%19% 9% 13%22% OHIAChippewa Decorah Lake 3% 0%3% 3%13%3% 9% 9%3% OHIACincinnati DENISON Municipal Airport Lunken Field 9%3% 0%3% 13%9%16% 6% 9%19% OHIACircleville Des Moines International Airport 6%3% 0%3% 6%9%9% 19% 25%9% OHIACleveland Dubuque RegionalHopkins InternationalAirport Airport 3% 0% 6%0%3% 3% OHIAColumbus ELKADER Port5 SSW Columbus International Airport 6%3% 0%3% 9%13%6% 13% 6%13% OHIACoshocton EMMETSBURG Ag Rsch Stn 6%3% 0%13% 6%9%3% 13% 13%3% OHIADayton ESTHERVILLE International 2 N Airport 6%3% 0%6% 6% 3% 6% 13%9% OHIADefiance Estherville Memorial Municipal Airport Airport 6%3% 3%9% 3%9%3% 9% 3%9% OHIAFindlay FAIRFIELD Airport 3%6% 3%13% 6%16%6% 25% 34%6% OHIAHannibal Fayette L&D 0%3% 0% 0% 3% 6% 6%3% OHIAJackson FOREST 3 CITY Nw 2 NNE 3% 0% 9%0%3% 6% 6%9% OHIALima FORT Allen DODGE Country Airport 6%3% 3%6% 3%16%3% 16% 9% OHIALima Fort DodgeWwtp Regional Airport 6%3% 6%3% 3%6%6% 9% 9%13% OHIAMansfield GILBERT 5 W 6%3% 0%3% 3%9%3% 16% 6%3% OHIAMansfield Gilmore Lahm Municipal Airport 3% 0%3% 3%0%3% 6% 6%3% OHIAMarietta GRINNELL Wwtp 3 SW 3% 0%3% 6%9%3% 6% 16%19% OHIAMc GRUNDY Connelsville CENTER Lock 7 6%3% 3%6% 3% 3% 6% 9% OHIAMontpelier GUTHRIE CENTER 9%3% 3%6% 9% 6% 19% 16% OHIANew GUTTENBERG Lexington L2 &Nw D 10 3% 0% 0% 3% 9% 16%6% OHIANewark HAMPTON Wtr Wks 3% 3%6% 6%3%3% 9% 9%6% OHIANewport Harlan 1n 6%3% 0%6% 6%3%3% 9% 6%3% OHIANorwalk Harlan Municipal Wwtp Airport 6%3% 0%6% 0%6%0% 13% 9% OHIAPandora Indianola 6%3% 0%3% 6%9%6% 19% 13%6% OHIAPaulding Iowa City Municipal Airport 6%3% 6%3% 3% 6% 9% 25%9% OHIAPortsmouth IOWA FALLS Sciotoville 3% 3% 13% 6% 16% 6%19% OHIASpringfield Jefferson New Wwks 3% 0%13% 6%13%3% 19% 13%6% OHIAToledo Kanawha Express Airport 6%3% 9%0% 9%0%6% 3%16% OHIAUpper Keosauqua Sandusky 6% 0%16% 6%22%3% 25% 47%3% OHIAVan Lamoni Wert Municipal 1 S Airport 6%3% 9%6% 6%13%6% 19% 19%9% OHIAWarren Le Mars 3 S 0%9% 0%13% 6%16%0% 16% 16%3% OHIAWauseon Leon 6 Ese Wtp 6%3% 6% 6%16%3% 22% 22%9% OHIAWaverly Lewis 6%3% 3%6% 9%3%9% 13% 13% OHIAWesterville Logan 9%13%3% 13% 9%13%6% 19% 19%6% OHIAWilmington MANCHESTER 3 N #2 3%6% 0% 3% 3% 6% 6%3% OHIAWooster MAQUOKETA Exp Stn 4 W 6%3% 0% 3% 3% 6% 6%0% OHIAYoungstown Marshalltown Regional Municipal Airport Airport 3% 0% 3%6%3% 9% 3%0% OHIAZanesville Mason City Municipal Airport 3% 0%9% 3%6%3% 9% 9%3% SDIAAberdeen Mason City Regional Municipal Airport Airport 3% 9%13% 13%3%9% 6%19% SDIAAurora MOUNT AYR 3% 0%6% 3%9%0% 19% 16%3% SDIABeresford Muscatine 3% 13%6% 16%6%16% 13% 25%13% SDIABison Nashua 3%6% 19%3% 22%3%38% 6% 3%41% SD Britton 3% 6% 9% 6% 9% SD Brookings 3% 3% 3% 6% 3% Page 10 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

IASD AlbiaBrookings 3 Nne 2 Ne 3% 6%3% 16%6% 19%3% 13%9% IASD ALGONACamp Crook 3 W 0%6% 9%19% 6%34% 13%38% 3%38% IASD AllisonCaputa 3%9% 3%19% 9%31% 6%31% 6%50% IASD AmesClark Municipal Airport 3% 3% 9% 13%3% 6%13% IASD ANKENYClear Lake 6%3% 3% 6%9% 22%3% 22%6% IASD AtlanticCottonwood 1 Ne 3%9% 9%28% 13%38% 13%38% 16%59% IASD AudubonDe Smet 1 Sse 3% 9%3% 6% 13%6% 13% IASD BeaconsfieldDell Rapids 3% 3% 16%3% 19%9% 13%9% IASD BedfordDupree 6% 6%28% 16%31% 19%38% 22%44% IASD BELLEEdgemont PLAINE 3%13% 3%34% 13%47% 16%53% 13%56% IASD BloomfieldFt Meade 1 Wnw 3%6% 3%22% 16%34% 16%34% 25%38% IASD BOONEGettysburg 3% 6%16% 6%9% 19%25% 13%28% IASD BRITTHill City 3%0% 13%0% 6%16% 9% 9% IASD CalmarHot Springs 3%16% 0%31% 0%41% 6%38% 0%56% IASD CARROLLHuron Regional Airport 3%6% 9%16% 9%22% 9%25% 13%34% IASD CarrollIpswich Arthur N Neu Airport 6%3% 6% 6%19% 13%9% 3%25% IASD CascadeJewel Cave 3% 0%16% 9%31% 9%25% 6%34% IASD CastanaKennebec 3%13% 6%28% 3%47% 13%53% 9%69% IASD CedarLead Rapids 3%0% 0% 3% 6%3% 6%0% IASD CedarLemmon Rapids Municipal Airport 6%3% 0%16% 6%22% 9%25% 13%31% IASD CEDARMaurine RAPIDS12Sw NO 1 3%6% 0%22% 13%31% 13%44% 16%63% IASD CharitonMc Intosh 6 Se 3%6% 3%9% 9%22% 19%28% 16%34% IASD CHARITONMenno 1 E 3%16% 3%22% 13%22% 19% 19%28% IASD CHARLESMilesville 5 CITY Ne 3%6% 6%31% 6%34% 9%34% 3%59% IASD ClarindaMission 3%6% 6%22% 13%16% 25%31% 16%50% IASD CRESCOMission 14 1 SNE 3%9% 0%22% 3%16% 3%31% 3%59% IASD DavenportMt Rushmore Municipal Natl Mem Airport 3% 0%3% 3%16% 9% 13%6% IASD DecorahMurdo 3%9% 3%22% 13%38% 9%41% 9%53% IASD DENISONNisland 3% 3%9% 9%28% 6%28% 9%38% IASD DesOacoma Moines International Airport 3%6% 3%19% 9%19% 19%34% 25%50% IASD DubuqueOelrichs Regional Airport 3%16% 0%31% 0%44% 3%56% 3%66% IASD ELKADEROral 5 SSW 3%13% 3%22% 13%34% 13%31% 6%38% IASD EMMETSBURGPactola Dam 3%0% 13%3% 9%16% 13%6% 13%3% IASD ESTHERVILLEPierre 2 N 3%9% 6%22% 6%31% 6%41% 13%44% IASD EsthervillePierre Regional Municipal Airport Airport 3%9% 9%28% 9%38% 9%47% 3%63% IASD FAIRFIELDPollock 6%3% 13% 16%28% 25% 34%28% IASD FayettePorcupine 11 N 3%13% 0%28% 0%44% 6%50% 6%59% IASD FORESTRapid City CITY 4Nw 2 NNE 3% 0%16% 0%31% 6%31% 6%34% IASD FORTRapid DODGECity Regional Airport 3%6% 6%22% 16%28% 16%34% 9%44% IASD FortRedfield Dodge Regional Airport 3% 3% 6%9% 9%19% 9%13% IASD GILBERTRoscoe 3%6% 3%9% 9%13% 16% 6%22% IASD GilmoreSelby 3% 3%9% 0%16% 6%16% 6%28% IASD GRINNELLSioux Falls 3Foss SW Field 3% 3%16% 9%13% 6%19% 16% IASD GRUNDYSisseton CENTER 3% 6% 3%13% 6%9% 9% IASD GUTHRIESouth Shore CENTER 3% 6%3% 9%6% 19%0% 16%6% IASD GUTTENBERGSpearfish L & D 10 3% 0%19% 0%22% 9%38% 16%41% IASD HAMPTONTimber Lake 3% 6%9% 3%22% 9%28% 9%31% IASD HarlanTyndall 1n 3%6% 6%25% 3%19% 9%28% 6%38% IASD HarlanVermillion Municipal 2 Se Airport 3%16% 6%28% 6%22% 13%19% 9%38% IASD IndianolaVictor 4 Nne 3% 3%0% 9% 19%6% 13%3% IASD IowaWagner City Municipal Airport 3%19% 3%34% 3%34% 9%38% 25%59% IASD IOWAWatertown FALLS Municipal Airport 3% 3% 13%6% 16%3% 6%16% IASD JeffersonWebster 3% 13%6% 13% 19%3% 13% IASD KanawhaWessington Springs 3%6% 0%16% 0%22% 6%19% 3%31% IASD KeosauquaWhite Lake 6% 16%19% 22%25% 25%34% 47% IASD LamoniWind Cave Municipal Airport 3%6% 6%16% 13%28% 19%28% 19%41% IASD LeWinner Mars 9%13% 13%25% 16%50% 16%56% 16%63% IASD LeonYankton 6 Ese 2 E 3%13% 6%19% 16%28% 22%28% 22%44% IAWI LewisAfton 3%9% 6%3% 3% 13%9% 13% IAWI LoganAlma Dam 4 13%0% 13%0% 13%3% 19%3% 19%9% IAWI MANCHESTERAppleton #2 6%3% 0% 3% 6%3% 6% IAWI MAQUOKETAArboretum Univ 4 WWis 3%9% 0% 3%6% 6%9% 6%3% IAWI MarshalltownArlington Univ Municipal Farm Airport 3%6% 0% 6% 9%3% 3%6% IAWI MasonBaraboo City 3% 9%0% 6%3% 9%3% 9%3% IAWI MasonBeaver CityDam Municipal Airport 3% 13%0% 3% 9%6% 6%3% IAWI MOUNTBeloit AYR 3%9% 6%0% 9% 19%9% 16%3% IAWI MuscatineBloomer 3%6% 6%0% 6% 13%3% 25%6% IAWI NashuaBrodhead 6%3% 3% 3% 6%9% 3%6% WI Burlington 6% 0% 6% 3% 3% WI Chilton 6% 0% 3% 3% 3% Page 11 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

WIIAClintonville Albia 3 Nne 3% 0%6% 16%3% 19%3% 13%6% WIIADodgeville ALGONA 3 W 3%0% 0%9% 6%3% 13%6% 3%0% WIIAEau Allison Claire Regional Airport 6%3% 0%3% 9%6% 6%9% 6%16% WIIAFt Ames Atkinson Municipal Airport 6%3% 0%3% 3%9% 13%9% 6%3% WIIAGenoa ANKENY Dam 8 6% 0%3% 3%6% 22%6% 22%6% WIIAGermantown Atlantic 1 Ne 0%3% 3%9% 3%13% 13%6% 16%3% WIIAGreen Audubon Bay 1 AustinSse Straubel International Airport 6%3% 0%9% 3%6% 13%3% 13%3% WIIAHartford Beaconsfield 2 W 3% 3% 6%16% 19%0% 13%6% WIIAHoricon Bedford 3%6% 0%6% 3%16% 19%3% 22%0% WIIAIowa BELLE County PLAINE Airport 3% 0%3% 3%13% 16%3% 13%3% WIIALa Bloomfield Crosse Municipal 1 Wnw Airport 9%3% 6%3% 9%16% 16%13% 25%13% WIIALancaster BOONE 4 Wsw 3% 0%6% 3%6% 19%6% 13%0% WIIALaona BRITT 6 Sw 0%3% 0%13% 0%6% 9%0% 9%0% WIIALynxville Calmar Dam 9 3% 0% 0% 6%9% 0%9% WIIAMadison CARROLL Dane County Regional Airport 9%3% 0%9% 3%9% 9%6% 13%6% WIIAManitowoc Carroll Arthur N Neu Airport 0%6% 0%6% 0%6% 13%6% 3%0% WIIAMarinette Cascade 3% 0% 6%9% 9%3% 6%9% WIIAMarshfield Castana Exp Farm 6%3% 0%6% 3% 13%6% 9%0% WIIAMedford Cedar Rapids 0%3% 0% 0%3% 6%3% 6%0% WIIAMilwaukee Cedar Rapids Mitchell Municipal International Airport Airport 6% 0% 3%6% 9%6% 13%6% WIIAMilwaukee CEDAR RAPIDS Mt Mary NO Col 1 13%3% 9%0% 16%13% 13%16% 16% WIIAMinocqua Chariton Dam 0%3% 0%3% 3%9% 19%3% 16%0% WIIANeillsville CHARITON 3 Sw1 E 3% 0%3% 3%13% 19%3% 19%3% WIIANew CHARLES London CITY 3% 3%6% 3%6% 9%3% 3%9% WIIAOconomowoc Clarinda 6%3% 0%6% 3%13% 25%3% 16%3% WIIAOconto CRESCO 4 1W NE 0%3% 0% 3% 3%0% 3%6% WIIAOshkosh Davenport Municipal Airport 6%3% 0% 3% 9%3% 13%6% WIIAOwen Decorah 2N 0%3% 0%3% 3%13% 9%3% 9%0% WIIAPlatteville DENISON 3% 0%3% 6%9% 6%9% 9%6% WIIAPlymouth Des Moines International Airport 3% 3% 3%9% 19%6% 25%13% WIIAPort Dubuque Washington Regional Airport 6%3% 0% 6%0% 3%6% 3% WIIAPortage ELKADER 5 SSW 6%3% 0%3% 6%13% 13%9% 6%9% WIIAPrairie EMMETSBURG Du Chien 9%3% 6%13% 19%9% 13%19% 13%9% WIIARacine ESTHERVILLE 2 N 3% 0%6% 3%6% 6% 13%6% WIIARhinelander Estherville Municipal Airport 0%3% 0%9% 0%9% 9%3% 3%0% WIIARice FAIRFIELD Lake Regional Airport 0%6% 0%13% 3%16% 25%0% 34%3% WIIARichland Fayette Ctr 3% 0% 3%0% 6%9% 6%13% WIIARosholt FOREST 9 CITY Nne 2 NNE 0%3% 0% 3%0% 6%3% 6%3% WIIAShawano FORT DODGE 2 Ssw 9%3% 0%6% 6%16% 16%3% 9%13% WIIASparta Fort Dodge Regional Airport 9%3% 0%3% 6% 9%3% 9% WIIAStanley GILBERT 0%3% 0%3% 3%9% 16%3% 6%0% WIIAStevens Gilmore Point 3% 0%3% 3%0% 6%3% 6%0% WIIAStoughton GRINNELL 3 SW 6%3% 0%3% 3%9% 6% 16%6% WIIASturgeon GRUNDY BayCENTER Exp Farm 0%3% 0%6% 3% 6%0% 9%3% WIIATrempealeau GUTHRIE CENTER Dam 6 3% 0%6% 3%9% 19%3% 16%3% WIIATwo GUTTENBERG Rivers L & D 10 0%3% 0% 0% 9%0% 16%0% WIIAViroqua HAMPTON 2 S 3% 0%6% 3% 9%0% 9%0% WIIAWashington Harlan 1n Island 0%3% 0%6% 0%3% 9%0% 6%0% WIIAWatertown Harlan Municipal Municipal Airport Airport 3% 0%6% 3%6% 13%6% 9%3% WIIAWaukesha Indianola 13%3% 0%3% 6%9% 19%3% 13%6% WIIAWaupaca Iowa City Municipal Airport 3% 0%3% 3% 9%6% 25%9% WIIAWausau IOWA FALLS Downtown Airport 3% 0%3% 3%13% 16%3% 6%3% WIIAWhitewater Jefferson 6%3% 0%13% 6%13% 19%6% 13%3% WIIAWinter Kanawha 0%3% 0% 3%0% 6%0% 3%0% WIIAWisconsin Keosauqua Rapids 3%6% 3%16% 3%22% 25%9% 47%13% 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% DataIA sources MOUNT include AYR National Weather Service, Michigan Agricultural Weather Network, Illinois3% Water and Atmospheric6% Resources9% and Monitoring 19% Program, 16% North DakotaIA Agricultural Muscatine Weather Network and the Automated Weather Data Network. 3% 6% 6% 13% 25% IA Nashua 6% 3% 3% 6% 3% Page 12