Ranked from NOAA 1991-2020 Climate Normals
Hottest Summers in America
Average daily high in the hottest month of the year, by county. Read it next to the cooling degree days in the same row: the two together are what the summer electricity bill is actually made of. Figures are NOAA 1991-2020 Climate Normals from the weather station nearest each county seat, so they describe a thirty-year average rather than any single year.
Where does yours land?
Every county in America is somewhere on this scale, including the one you live in.
Top 100
| # | County | State | Summer high | Cooling degree days | Monthly to own |
|---|---|---|---|---|---|
| 1 | Inyo County | CA | 114.9°F | 5,533 | $2,577 |
| 2 | Yuma County | AZ | 109.2°F | 4,176 | $1,589 |
| 3 | La Paz County | AZ | 108.7°F | 4,453 | $1,053 |
| 4 | Imperial County | CA | 107.8°F | 4,162 | $2,201 |
| 5 | Riverside County | CA | 106.9°F | 3,880 | $3,815 |
| 6 | Maricopa County | AZ | 106.5°F | 4,202 | $3,044 |
| 7 | San Bernardino County | CA | 105.0°F | 3,129 | $3,521 |
| 8 | Pinal County | AZ | 104.9°F | 3,877 | $2,360 |
| 9 | Clark County | NV | 103.8°F | 3,407 | $2,897 |
| 10 | Gila County | AZ | 103.7°F | 3,559 | $1,921 |
| 11 | Graham County | AZ | 100.9°F | 2,715 | $1,618 |
| 12 | Webb County | TX | 100.9°F | 4,341 | $1,741 |
| 13 | Greenlee County | AZ | 100.4°F | 2,895 | $1,144 |
| 14 | La Salle County | TX | 100.3°F | 3,951 | $1,064 |
| 15 | Shasta County | CA | 99.9°F | 2,032 | $2,637 |
| 16 | Dimmit County | TX | 99.9°F | 3,494 | $867 |
| 17 | Jim Hogg County | TX | 99.9°F | 4,113 | $1,248 |
| 18 | Starr County | TX | 99.4°F | 4,232 | $967 |
| 19 | Foard County | TX | 99.1°F | 2,559 | $800 |
| 20 | Zapata County | TX | 99.1°F | 4,281 | $925 |
| 21 | Zavala County | TX | 99.1°F | 3,838 | $949 |
| 22 | McMullen County | TX | 98.9°F | 3,616 | $1,166 |
| 23 | Mohave County | AZ | 98.7°F | 2,174 | $1,952 |
| 24 | Kings County | CA | 98.7°F | 2,134 | $2,363 |
| 25 | Collingsworth County | TX | 98.7°F | 2,399 | $1,098 |
| 26 | Maverick County | TX | 98.6°F | 3,339 | $1,453 |
| 27 | Kern County | CA | 98.3°F | 2,425 | $2,438 |
| 28 | DeWitt County | TX | 98.3°F | 3,454 | $1,504 |
| 29 | Hunt County | TX | 98.3°F | 2,755 | $1,911 |
| 30 | Caldwell County | TX | 98.2°F | 3,192 | $1,955 |
| 31 | Hidalgo County | TX | 98.2°F | 4,269 | $1,272 |
| 32 | Brewster County | TX | 98.1°F | 3,037 | $1,938 |
| 33 | Tehama County | CA | 98.0°F | 1,926 | $2,400 |
| 34 | Reeves County | TX | 98.0°F | 2,535 | $1,131 |
| 35 | Brooks County | TX | 97.9°F | 3,656 | $894 |
| 36 | Colorado County | TX | 97.9°F | 2,984 | $1,744 |
| 37 | Frio County | TX | 97.8°F | 3,456 | $1,140 |
| 38 | Fresno County | CA | 97.7°F | 2,209 | $2,757 |
| 39 | Madera County | CA | 97.7°F | 1,749 | $2,778 |
| 40 | Young County | TX | 97.7°F | 2,584 | $1,539 |
| 41 | Erath County | TX | 97.6°F | 2,502 | $2,200 |
| 42 | Karnes County | TX | 97.6°F | 3,178 | $1,290 |
| 43 | Palo Pinto County | TX | 97.6°F | 2,502 | $1,564 |
| 44 | Wilson County | TX | 97.6°F | 3,178 | $2,509 |
| 45 | Atascosa County | TX | 97.5°F | 3,331 | $1,491 |
| 46 | Bexar County | TX | 97.5°F | 3,144 | $2,279 |
| 47 | Guadalupe County | TX | 97.5°F | 3,144 | $2,552 |
| 48 | Lavaca County | TX | 97.5°F | 3,587 | $1,928 |
| 49 | Baylor County | TX | 97.4°F | 2,384 | $977 |
| 50 | Fayette County | TX | 97.4°F | 3,092 | $2,322 |
| 51 | Jim Wells County | TX | 97.4°F | 4,071 | $1,067 |
| 52 | Tom Green County | TX | 97.4°F | 2,786 | $1,728 |
| 53 | Jefferson County | OK | 97.2°F | 2,445 | $819 |
| 54 | Tillman County | OK | 97.2°F | 2,445 | $776 |
| 55 | Cottle County | TX | 97.2°F | 2,239 | $664 |
| 56 | Duval County | TX | 97.2°F | 3,890 | $910 |
| 57 | Kleberg County | TX | 97.2°F | 3,890 | $1,487 |
| 58 | Knox County | TX | 97.2°F | 2,456 | $802 |
| 59 | Medina County | TX | 97.2°F | 3,147 | $1,986 |
| 60 | Uvalde County | TX | 97.2°F | 3,147 | $1,417 |
| 61 | Wichita County | TX | 97.2°F | 2,445 | $1,418 |
| 62 | Wilbarger County | TX | 97.2°F | 2,466 | $1,039 |
| 63 | Willacy County | TX | 97.2°F | 4,220 | $755 |
| 64 | Calaveras County | CA | 97.1°F | 1,842 | $3,295 |
| 65 | Bosque County | TX | 97.1°F | 2,868 | $1,658 |
| 66 | Dallas County | TX | 97.1°F | 3,125 | $2,530 |
| 67 | El Paso County | TX | 97.1°F | 2,662 | $1,676 |
| 68 | McLennan County | TX | 97.1°F | 2,868 | $2,019 |
| 69 | Tarrant County | TX | 97.1°F | 3,125 | $2,686 |
| 70 | Archer County | TX | 97.0°F | 2,570 | $1,633 |
| 71 | Bastrop County | TX | 97.0°F | 2,999 | $2,423 |
| 72 | Hill County | TX | 97.0°F | 2,674 | $1,524 |
| 73 | Travis County | TX | 97.0°F | 2,996 | $4,198 |
| 74 | Santa Cruz County | AZ | 96.9°F | 1,977 | $1,728 |
| 75 | Brown County | TX | 96.9°F | 2,607 | $1,410 |
| 76 | Throckmorton County | TX | 96.9°F | 2,440 | $898 |
| 77 | Caddo County | OK | 96.8°F | 2,307 | $1,060 |
| 78 | Kiowa County | OK | 96.8°F | 2,307 | $911 |
| 79 | Llano County | TX | 96.8°F | 2,799 | $2,660 |
| 80 | Stonewall County | TX | 96.8°F | 2,400 | $678 |
| 81 | Williamson County | TX | 96.8°F | 2,748 | $3,665 |
| 82 | Tooele County | UT | 96.8°F | 1,465 | $2,835 |
| 83 | Esmeralda County | NV | 96.7°F | 1,364 | $888 |
| 84 | Coleman County | TX | 96.7°F | 2,670 | $969 |
| 85 | Kinney County | TX | 96.7°F | 2,985 | $951 |
| 86 | Lampasas County | TX | 96.7°F | 2,622 | $2,104 |
| 87 | Mitchell County | TX | 96.7°F | 2,336 | $968 |
| 88 | Cotton County | OK | 96.6°F | 2,264 | $1,091 |
| 89 | Blanco County | TX | 96.6°F | 2,689 | $3,294 |
| 90 | Brazos County | TX | 96.6°F | 3,169 | $2,535 |
| 91 | Burleson County | TX | 96.6°F | 3,169 | $1,582 |
| 92 | Comanche County | TX | 96.6°F | 2,689 | $1,357 |
| 93 | Grimes County | TX | 96.6°F | 3,169 | $1,997 |
| 94 | Hardeman County | TX | 96.6°F | 2,231 | $840 |
| 95 | Live Oak County | TX | 96.6°F | 3,317 | $1,319 |
| 96 | Trinity County | CA | 96.5°F | 888 | $2,466 |
| 97 | Lincoln County | NV | 96.5°F | 986 | $1,607 |
| 98 | Chaves County | NM | 96.5°F | 2,236 | $1,187 |
| 99 | Clay County | TX | 96.5°F | 2,290 | $1,527 |
| 100 | Hood County | TX | 96.5°F | 2,559 | $2,434 |
Every figure is modelled on the county's own median home with 20% down at 7.03%. Property tax and electricity are county and state specific; homeowners insurance uses the NAIC average premium for that state, which ranges from 0.16% of home value in Hawaii to 1.16% in Oklahoma. Maintenance and water are national estimates. Full methodology.
Hottest Summers by state
The same ranking within a single state.
Alabama67Alaska26Arizona15Arkansas75California58Colorado64Florida67Georgia159Idaho44Illinois102Indiana92Iowa99Kansas105Kentucky120Louisiana64Maine16Maryland24Massachusetts14Michigan83Minnesota87Mississippi82Missouri115Montana56Nebraska93Nevada16New Jersey21New Mexico33New York62North Carolina100North Dakota53Ohio88Oklahoma77Oregon36Pennsylvania67South Carolina46South Dakota65Tennessee95Texas250Utah29Vermont14Virginia133Washington39West Virginia55Wisconsin72Wyoming23