# Counties in Ohio by average annual temperature, 2025

All 88 values come from NOAA National Centers for Environmental Information for 2025, so the places are comparable.

- Indicator id: `average_temperature_annual`
- Unit: °F
- Definition: Mean air temperature from January to December, in degrees Fahrenheit: the average of the 12 monthly mean temperatures. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December average temperature, counties (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- Citation: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/average-annual-temperature/ohio-counties

| Rank | Place | °F |
|---:|---|---:|
| 1 | Lawrence County | 55.6 |
| 2 | Hamilton County | 54.8 |
| 3 | Scioto County | 54.7 |
| 4 | Clermont County | 54.3 |
| 5 | Pike County | 54.2 |
| 6 | Gallia County | 54.1 |
| 6 | Washington County | 54.1 |
| 8 | Adams County | 54 |
| 9 | Butler County | 53.7 |
| 9 | Jackson County | 53.7 |
| 9 | Meigs County | 53.7 |
| 9 | Ross County | 53.7 |
| 13 | Brown County | 53.6 |
| 14 | Athens County | 53.5 |
| 14 | Warren County | 53.5 |
| 16 | Pickaway County | 53.4 |
| 17 | Montgomery County | 53.3 |
| 18 | Vinton County | 53.1 |
| 19 | Franklin County | 53 |
| 19 | Morgan County | 53 |
| 21 | Highland County | 52.9 |
| 22 | Fayette County | 52.8 |
| 22 | Greene County | 52.8 |
| 22 | Madison County | 52.8 |
| 22 | Miami County | 52.8 |
| 22 | Noble County | 52.8 |
| 27 | Hocking County | 52.7 |
| 28 | Clark County | 52.6 |
| 28 | Muskingum County | 52.6 |
| 30 | Clinton County | 52.5 |
| 30 | Fairfield County | 52.5 |
| 32 | Guernsey County | 52.3 |
| 32 | Perry County | 52.3 |
| 34 | Monroe County | 52.2 |
| 35 | Allen County | 52 |
| 35 | Preble County | 52 |
| 37 | Darke County | 51.9 |
| 37 | Delaware County | 51.9 |
| 37 | Wyandot County | 51.9 |
| 40 | Hancock County | 51.8 |
| 40 | Hardin County | 51.8 |
| 40 | Lucas County | 51.8 |
| 40 | Marion County | 51.8 |
| 40 | Wood County | 51.8 |
| 45 | Auglaize County | 51.7 |
| 45 | Licking County | 51.7 |
| 45 | Putnam County | 51.7 |
| 45 | Shelby County | 51.7 |
| 49 | Ottawa County | 51.6 |
| 49 | Union County | 51.6 |
| 51 | Champaign County | 51.5 |
| 51 | Coshocton County | 51.5 |
| 53 | Belmont County | 51.4 |
| 53 | Van Wert County | 51.4 |
| 55 | Henry County | 51.3 |
| 55 | Mercer County | 51.3 |
| 55 | Sandusky County | 51.3 |
| 55 | Tuscarawas County | 51.3 |
| 59 | Paulding County | 51.2 |
| 60 | Erie County | 51.1 |
| 60 | Harrison County | 51.1 |
| 62 | Logan County | 51 |
| 62 | Seneca County | 51 |
| 64 | Jefferson County | 50.9 |
| 65 | Defiance County | 50.8 |
| 66 | Crawford County | 50.7 |
| 66 | Fulton County | 50.7 |
| 68 | Cuyahoga County | 50.6 |
| 68 | Knox County | 50.6 |
| 68 | Morrow County | 50.6 |
| 68 | Summit County | 50.6 |
| 72 | Carroll County | 50.5 |
| 72 | Holmes County | 50.5 |
| 74 | Stark County | 50.4 |
| 75 | Lake County | 50.3 |
| 75 | Lorain County | 50.3 |
| 75 | Wayne County | 50.3 |
| 78 | Huron County | 50.2 |
| 78 | Medina County | 50.2 |
| 80 | Williams County | 49.9 |
| 81 | Ashland County | 49.8 |
| 81 | Columbiana County | 49.8 |
| 81 | Richland County | 49.8 |
| 84 | Portage County | 49.7 |
| 85 | Mahoning County | 49.4 |
| 85 | Trumbull County | 49.4 |
| 87 | Ashtabula County | 49.3 |
| 88 | Geauga County | 49 |