Counties in Ohio by average annual temperature, 2025

Lawrence County had the highest average annual temperature of 88 counties in 2025, at 55.6 °F. Geauga County had the lowest, at 49 °F. The median was 51.8 °F and the figure for Ohio was 51.9 °F. Source: NOAA National Centers for Environmental Information.

Highest55.6Lawrence County

Lowest49Geauga County

Median51.888 counties

Ohio51.9History

Top 40 counties, 2025

°F. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2025 °F	Change on 2024
1	Lawrence County	55.6	-3.8%
2	Hamilton County	54.8	-4.9%
3	Scioto County	54.7	-4%
4	Clermont County	54.3	-4.9%
5	Pike County	54.2	-4.1%
6	Gallia County	54.1	-4.1%
6	Washington County	54.1	-4.6%
8	Adams County	54	-4.1%
9	Butler County	53.7	-5%
9	Jackson County	53.7	-4.3%
9	Meigs County	53.7	-4.1%
9	Ross County	53.7	-4.4%
13	Brown County	53.6	-4.5%
14	Athens County	53.5	-4.6%
14	Warren County	53.5	-5.8%
16	Pickaway County	53.4	-4.8%
17	Montgomery County	53.3	-5.5%
18	Vinton County	53.1	-4.3%
19	Franklin County	53	-6%
19	Morgan County	53	-5%
21	Highland County	52.9	-5.2%
22	Fayette County	52.8	-5.2%
22	Greene County	52.8	-5.9%
22	Madison County	52.8	-5.5%
22	Miami County	52.8	-5.5%
22	Noble County	52.8	-5%
27	Hocking County	52.7	-4.2%
28	Clark County	52.6	-5.6%
28	Muskingum County	52.6	-5.6%
30	Clinton County	52.5	-6.3%
30	Fairfield County	52.5	-4.7%
32	Guernsey County	52.3	-5.6%
32	Perry County	52.3	-5.1%
34	Monroe County	52.2	-5.1%
35	Allen County	52	-5.5%
35	Preble County	52	-4.8%
37	Darke County	51.9	-5.1%
37	Delaware County	51.9	-6%
37	Wyandot County	51.9	-6.1%
40	Hancock County	51.8	-6.2%
40	Hardin County	51.8	-5.8%
40	Lucas County	51.8	-5.8%
40	Marion County	51.8	-6%
40	Wood County	51.8	-6%
45	Auglaize County	51.7	-5.3%
45	Licking County	51.7	-5.5%
45	Putnam County	51.7	-5.7%
45	Shelby County	51.7	-5.1%
49	Ottawa County	51.6	-5.8%
49	Union County	51.6	-5.8%
51	Champaign County	51.5	-5.5%
51	Coshocton County	51.5	-5.3%
53	Belmont County	51.4	-5.5%
53	Van Wert County	51.4	-5.5%
55	Henry County	51.3	-5.5%
55	Mercer County	51.3	-5.4%
55	Sandusky County	51.3	-6%
55	Tuscarawas County	51.3	-5.7%
59	Paulding County	51.2	-5.5%
60	Erie County	51.1	-5.9%
60	Harrison County	51.1	-5.7%
62	Logan County	51	-5.6%
62	Seneca County	51	-6.1%
64	Jefferson County	50.9	-5.9%
65	Defiance County	50.8	-5.4%
66	Crawford County	50.7	-6.3%
66	Fulton County	50.7	-5.4%
68	Cuyahoga County	50.6	-7.3%
68	Knox County	50.6	-5.6%
68	Morrow County	50.6	-6.1%
68	Summit County	50.6	-6.6%
72	Carroll County	50.5	-5.8%
72	Holmes County	50.5	-5.8%
74	Stark County	50.4	-6.3%
75	Lake County	50.3	-6.9%
75	Lorain County	50.3	-6.9%
75	Wayne County	50.3	-6.7%
78	Huron County	50.2	-6.2%
78	Medina County	50.2	-6.9%
80	Williams County	49.9	-5.5%
81	Ashland County	49.8	-6.9%
81	Columbiana County	49.8	-5.7%
81	Richland County	49.8	-6.6%
84	Portage County	49.7	-6.4%
85	Mahoning County	49.4	-6.4%
85	Trumbull County	49.4	-6.4%
87	Ashtabula County	49.3	-6.5%
88	Geauga County	49	-6.8%

Other periods

About this ranking

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.

Values are area averages, so a county with mountains and valleys has one value for very different local climates. NOAA revises the last two years every month.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

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.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December average temperature, counties (Counties in Ohio by average annual temperature, 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December average temperature, counties, Counties in Ohio by average annual temperature, 2025. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/rankings/average-annual-temperature/ohio-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December average temperature, counties. Counties in Ohio by average annual temperature, 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/rankings/average-annual-temperature/ohio-counties.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Ohio by average annual temperature, 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/average-annual-temperature/ohio-counties (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_ohio_by_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Ohio by average annual temperature, 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/ohio-counties. Publisher attribution: 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.},
}

RIS

TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December average temperature, counties: Counties in Ohio by average annual temperature, 2025
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/rankings/average-annual-temperature/ohio-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/ohio-counties.
N1  - Publisher attribution: 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.
ER  -

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Questions

Which county has the highest average annual temperature?

Lawrence County, with 55.6 °F in 2025, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Geauga County, with 49 °F in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.