Ranked from NOAA 1991-2020 Climate Normals
Highest Cooling Demand in Illinois
Cooling degree days are the mirror of heating degree days: how far and how long the temperature sits above 65°F. In the counties at the top of this list, cooling is the largest single line on the summer electricity bill. 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.
Illinois ranked
| # | County | Cooling degree days | Summer high | Monthly to own |
|---|---|---|---|---|
| 1 | Massac County | 1,683 | 89.9°F | $1,123 |
| 2 | Union County | 1,634 | 89.7°F | $1,220 |
| 3 | Bond County | 1,579 | 90.2°F | $1,292 |
| 4 | Madison County | 1,579 | 90.2°F | $1,573 |
| 5 | St. Clair County | 1,579 | 90.2°F | $1,604 |
| 6 | Alexander County | 1,566 | 89.2°F | $667 |
| 7 | Edwards County | 1,546 | 89.6°F | $960 |
| 8 | Pulaski County | 1,546 | 89.0°F | $789 |
| 9 | Wayne County | 1,546 | 89.6°F | $1,058 |
| 10 | Saline County | 1,522 | 89.1°F | $931 |
| 11 | Monroe County | 1,476 | 89.0°F | $2,321 |
| 12 | Wabash County | 1,459 | 87.4°F | $1,011 |
| 13 | Clinton County | 1,438 | 88.3°F | $1,666 |
| 14 | Gallatin County | 1,437 | 88.2°F | $863 |
| 15 | Johnson County | 1,389 | 88.3°F | $1,337 |
| 16 | Montgomery County | 1,389 | 88.7°F | $1,018 |
| 17 | Pope County | 1,389 | 88.3°F | $1,427 |
| 18 | Franklin County | 1,370 | 88.4°F | $887 |
| 19 | Jackson County | 1,370 | 88.4°F | $1,220 |
| 20 | Perry County | 1,370 | 88.4°F | $1,037 |
| 21 | Williamson County | 1,370 | 88.4°F | $1,364 |
| 22 | Clay County | 1,337 | 89.0°F | $947 |
| 23 | Marion County | 1,328 | 87.8°F | $1,001 |
| 24 | Hamilton County | 1,306 | 89.2°F | $1,038 |
| 25 | Washington County | 1,304 | 87.2°F | $1,415 |
| 26 | Effingham County | 1,298 | 88.5°F | $1,607 |
| 27 | Lawrence County | 1,291 | 88.3°F | $924 |
| 28 | Fayette County | 1,274 | 86.7°F | $1,099 |
| 29 | Cass County | 1,252 | 86.8°F | $995 |
| 30 | Pike County | 1,252 | 87.5°F | $988 |
| 31 | Crawford County | 1,249 | 87.4°F | $1,095 |
| 32 | White County | 1,245 | 87.6°F | $974 |
| 33 | Randolph County | 1,244 | 87.7°F | $1,238 |
| 34 | Jasper County | 1,234 | 86.4°F | $1,203 |
| 35 | Clark County | 1,228 | 87.7°F | $1,182 |
| 36 | Christian County | 1,206 | 86.4°F | $1,095 |
| 37 | Richland County | 1,195 | 86.8°F | $1,036 |
| 38 | Jefferson County | 1,191 | 85.7°F | $1,147 |
| 39 | Shelby County | 1,186 | 86.0°F | $1,220 |
| 40 | Hancock County | 1,170 | 86.3°F | $1,081 |
| 41 | Brown County | 1,169 | 87.3°F | $1,309 |
| 42 | Fulton County | 1,161 | 88.1°F | $1,056 |
| 43 | Mason County | 1,161 | 88.1°F | $1,087 |
| 44 | Calhoun County | 1,159 | 86.8°F | $1,557 |
| 45 | Peoria County | 1,157 | 86.3°F | $1,488 |
| 46 | Tazewell County | 1,157 | 86.3°F | $1,571 |
| 47 | Adams County | 1,153 | 86.0°F | $1,430 |
| 48 | Jersey County | 1,152 | 86.5°F | $1,556 |
| 49 | Ford County | 1,145 | 87.5°F | $1,180 |
| 50 | Macoupin County | 1,142 | 86.2°F | $1,195 |
| 51 | Marshall County | 1,134 | 87.0°F | $1,334 |
| 52 | Hardin County | 1,131 | 86.4°F | $893 |
| 53 | Scott County | 1,131 | 86.8°F | $986 |
| 54 | Moultrie County | 1,128 | 86.0°F | $1,192 |
| 55 | Coles County | 1,116 | 85.6°F | $1,209 |
| 56 | Cumberland County | 1,116 | 85.6°F | $1,146 |
| 57 | Macon County | 1,116 | 84.7°F | $1,214 |
| 58 | Greene County | 1,107 | 85.6°F | $951 |
| 59 | De Witt County | 1,105 | 85.8°F | $1,208 |
| 60 | Sangamon County | 1,094 | 85.5°F | $1,600 |
| 61 | Henderson County | 1,083 | 85.2°F | $1,010 |
| 62 | Douglas County | 1,076 | 84.9°F | $1,353 |
| 63 | Morgan County | 1,067 | 86.5°F | $1,248 |
| 64 | Woodford County | 1,067 | 85.5°F | $1,825 |
| 65 | Vermilion County | 1,066 | 85.4°F | $950 |
| 66 | Menard County | 1,056 | 85.5°F | $1,623 |
| 67 | Champaign County | 1,054 | 85.0°F | $1,901 |
| 68 | Livingston County | 1,052 | 84.3°F | $1,303 |
| 69 | Rock Island County | 1,041 | 86.1°F | $1,432 |
| 70 | Henry County | 1,031 | 85.7°F | $1,395 |
| 71 | McDonough County | 1,017 | 85.7°F | $1,067 |
| 72 | Logan County | 1,014 | 85.5°F | $1,220 |
| 73 | Kankakee County | 997 | 84.8°F | $1,764 |
| 74 | Grundy County | 995 | 84.9°F | $2,341 |
| 75 | Schuyler County | 987 | 84.5°F | $1,060 |
| 76 | McLean County | 978 | 86.0°F | $1,878 |
| 77 | Putnam County | 946 | 84.5°F | $1,525 |
| 78 | Edgar County | 928 | 84.4°F | $952 |
| 79 | Knox County | 899 | 83.6°F | $1,060 |
| 80 | Iroquois County | 892 | 84.8°F | $1,228 |
| 81 | Warren County | 891 | 84.1°F | $1,026 |
| 82 | Mercer County | 885 | 84.7°F | $1,341 |
| 83 | Will County | 872 | 83.6°F | $2,740 |
| 84 | LaSalle County | 865 | 82.9°F | $1,496 |
| 85 | Bureau County | 860 | 84.5°F | $1,211 |
| 86 | Boone County | 839 | 83.9°F | $1,880 |
| 87 | Lee County | 839 | 83.9°F | $1,467 |
| 88 | Ogle County | 839 | 83.9°F | $1,721 |
| 89 | Winnebago County | 839 | 83.9°F | $1,540 |
| 90 | Stark County | 829 | 83.7°F | $1,022 |
| 91 | Cook County | 822 | 84.0°F | $2,709 |
| 92 | Kane County | 822 | 84.0°F | $2,792 |
| 93 | Piatt County | 822 | 83.6°F | $1,591 |
| 94 | Lake County | 806 | 83.5°F | $3,073 |
| 95 | DeKalb County | 790 | 83.1°F | $2,214 |
| 96 | Kendall County | 781 | 84.4°F | $2,793 |
| 97 | DuPage County | 775 | 84.4°F | $3,309 |
| 98 | McHenry County | 771 | 84.0°F | $2,680 |
| 99 | Carroll County | 746 | 84.9°F | $1,138 |
| 100 | Whiteside County | 705 | 83.1°F | $1,250 |
| 101 | Stephenson County | 690 | 82.4°F | $1,300 |
| 102 | Jo Daviess County | 677 | 83.3°F | $1,756 |
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.
Nationwide
Highest Cooling Demand across all 3,133 US counties · Every county in Illinois