Ranked from NOAA 1991-2020 Climate Normals
Hottest Summers in Ohio
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.
Ohio ranked
| # | County | Summer high | Cooling degree days | Monthly to own |
|---|---|---|---|---|
| 1 | Butler County | 86.8°F | 1,067 | $2,074 |
| 2 | Montgomery County | 86.7°F | 1,191 | $1,576 |
| 3 | Clermont County | 86.6°F | 1,126 | $2,101 |
| 4 | Hamilton County | 86.6°F | 1,126 | $1,998 |
| 5 | Scioto County | 86.4°F | 1,234 | $1,216 |
| 6 | Pike County | 86.3°F | 1,080 | $1,310 |
| 7 | Ross County | 86.3°F | 1,080 | $1,401 |
| 8 | Gallia County | 86.2°F | 1,148 | $1,229 |
| 9 | Lawrence County | 86.1°F | 873 | $1,219 |
| 10 | Knox County | 86.0°F | 961 | $1,856 |
| 11 | Licking County | 86.0°F | 961 | $2,135 |
| 12 | Miami County | 85.9°F | 1,154 | $1,777 |
| 13 | Warren County | 85.9°F | 1,099 | $2,664 |
| 14 | Adams County | 85.8°F | 778 | $1,372 |
| 15 | Brown County | 85.8°F | 778 | $1,542 |
| 16 | Pickaway County | 85.8°F | 1,129 | $1,978 |
| 17 | Crawford County | 85.6°F | 1,010 | $1,167 |
| 18 | Franklin County | 85.4°F | 1,068 | $2,314 |
| 19 | Hancock County | 85.4°F | 1,005 | $1,682 |
| 20 | Washington County | 85.3°F | 1,000 | $1,510 |
| 21 | Guernsey County | 85.1°F | 883 | $1,371 |
| 22 | Paulding County | 85.1°F | 850 | $1,177 |
| 23 | Summit County | 85.1°F | 934 | $1,765 |
| 24 | Sandusky County | 85.0°F | 874 | $1,366 |
| 25 | Preble County | 84.9°F | 834 | $1,506 |
| 26 | Union County | 84.9°F | 968 | $2,559 |
| 27 | Champaign County | 84.8°F | 845 | $1,613 |
| 28 | Muskingum County | 84.8°F | 914 | $1,480 |
| 29 | Noble County | 84.8°F | 914 | $1,308 |
| 30 | Darke County | 84.6°F | 933 | $1,470 |
| 31 | Highland County | 84.6°F | 829 | $1,383 |
| 32 | Lucas County | 84.6°F | 930 | $1,474 |
| 33 | Meigs County | 84.6°F | 826 | $1,068 |
| 34 | Vinton County | 84.6°F | 826 | $1,214 |
| 35 | Hocking County | 84.5°F | 768 | $1,506 |
| 36 | Portage County | 84.5°F | 645 | $1,837 |
| 37 | Van Wert County | 84.5°F | 937 | $1,242 |
| 38 | Fairfield County | 84.4°F | 824 | $2,274 |
| 39 | Delaware County | 84.3°F | 919 | $3,552 |
| 40 | Shelby County | 84.3°F | 818 | $1,638 |
| 41 | Stark County | 84.3°F | 870 | $1,591 |
| 42 | Wood County | 84.2°F | 878 | $1,878 |
| 43 | Clinton County | 84.1°F | 880 | $1,645 |
| 44 | Putnam County | 84.1°F | 896 | $1,642 |
| 45 | Wyandot County | 84.1°F | 778 | $1,394 |
| 46 | Hardin County | 84.0°F | 888 | $1,241 |
| 47 | Clark County | 83.9°F | 802 | $1,415 |
| 48 | Henry County | 83.9°F | 827 | $1,482 |
| 49 | Seneca County | 83.9°F | 873 | $1,248 |
| 50 | Carroll County | 83.8°F | 779 | $1,515 |
| 51 | Morgan County | 83.8°F | 800 | $1,212 |
| 52 | Tuscarawas County | 83.8°F | 779 | $1,549 |
| 53 | Defiance County | 83.7°F | 747 | $1,360 |
| 54 | Holmes County | 83.7°F | 664 | $2,114 |
| 55 | Marion County | 83.7°F | 799 | $1,308 |
| 56 | Mercer County | 83.7°F | 865 | $1,785 |
| 57 | Allen County | 83.6°F | 847 | $1,418 |
| 58 | Auglaize County | 83.6°F | 847 | $1,570 |
| 59 | Fulton County | 83.6°F | 683 | $1,580 |
| 60 | Morrow County | 83.6°F | 779 | $1,731 |
| 61 | Fayette County | 83.5°F | 830 | $1,424 |
| 62 | Coshocton County | 83.4°F | 756 | $1,278 |
| 63 | Greene County | 83.4°F | 967 | $2,125 |
| 64 | Perry County | 83.4°F | 679 | $1,537 |
| 65 | Williams County | 83.4°F | 706 | $1,284 |
| 66 | Monroe County | 83.3°F | 743 | $1,192 |
| 67 | Huron County | 83.0°F | 827 | $1,411 |
| 68 | Belmont County | 82.9°F | 782 | $1,287 |
| 69 | Jefferson County | 82.9°F | 733 | $1,123 |
| 70 | Ashland County | 82.8°F | 751 | $1,532 |
| 71 | Richland County | 82.8°F | 751 | $1,406 |
| 72 | Columbiana County | 82.7°F | 633 | $1,267 |
| 73 | Mahoning County | 82.7°F | 633 | $1,320 |
| 74 | Logan County | 82.6°F | 803 | $1,613 |
| 75 | Athens County | 82.4°F | 767 | $1,544 |
| 76 | Wayne County | 82.4°F | 591 | $1,776 |
| 77 | Erie County | 82.3°F | 953 | $1,630 |
| 78 | Lake County | 82.3°F | 955 | $1,824 |
| 79 | Lorain County | 82.3°F | 690 | $1,838 |
| 80 | Ottawa County | 82.3°F | 953 | $1,728 |
| 81 | Madison County | 82.2°F | 742 | $1,950 |
| 82 | Trumbull County | 82.1°F | 556 | $1,221 |
| 83 | Jackson County | 81.7°F | 676 | $1,263 |
| 84 | Medina County | 81.6°F | 582 | $2,274 |
| 85 | Harrison County | 81.5°F | 754 | $1,107 |
| 86 | Ashtabula County | 81.0°F | 523 | $1,369 |
| 87 | Geauga County | 81.0°F | 513 | $2,607 |
| 88 | Cuyahoga County | 80.7°F | 925 | $1,750 |
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
Hottest Summers across all 3,133 US counties · Every county in Ohio