Counties in Michigan by average annual temperature, 2025

Monroe County had the highest average annual temperature of 83 counties in 2025, at 50.9 °F. Iron County had the lowest, at 40.3 °F. The median was 46.5 °F and the figure for Michigan was 45.7 °F. Source: NOAA National Centers for Environmental Information.

Highest50.9Monroe County

Lowest40.3Iron County

Median46.583 counties

Michigan45.7History

Map of counties, 2025

Under 44
44 to 45
45 to 47
47 to 48
48 to 49
49 and over

°F, 2025. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

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	Monroe County	50.9	-5.7%
2	Wayne County	50.5	-6%
3	Berrien County	50.2	-5.6%
3	Macomb County	50.2	-6.3%
5	Lenawee County	50	-5.7%
6	Cass County	49.8	-5.3%
6	St. Joseph County	49.8	-5.3%
8	Van Buren County	49.5	-5.7%
9	Kalamazoo County	49.3	-6.1%
9	St. Clair County	49.3	-6.3%
11	Branch County	49.2	-5.7%
12	Allegan County	49	-5.8%
12	Oakland County	49	-6.1%
14	Hillsdale County	48.9	-6%
14	Washtenaw County	48.9	-5.8%
16	Calhoun County	48.8	-6.2%
16	Ottawa County	48.8	-5.8%
18	Barry County	48.6	-6%
18	Genesee County	48.6	-6.4%
20	Eaton County	48.5	-5.6%
20	Jackson County	48.5	-5.8%
20	Muskegon County	48.5	-5.5%
23	Lapeer County	48.4	-6.2%
24	Clinton County	48.3	-5.8%
24	Ingham County	48.3	-5.7%
24	Livingston County	48.3	-6%
24	Saginaw County	48.3	-6.4%
28	Shiawassee County	48.2	-6.4%
29	Ionia County	48	-6.1%
29	Kent County	48	-6.1%
31	Bay County	47.9	-6.4%
31	Tuscola County	47.9	-6.4%
33	Sanilac County	47.7	-6.5%
34	Gratiot County	47.6	-6.5%
34	Midland County	47.6	-6.5%
36	Oceana County	47.4	-5%
37	Huron County	47.2	-6.7%
38	Arenac County	46.9	-6.2%
38	Newaygo County	46.9	-5.6%
40	Montcalm County	46.7	-6.8%
41	Mason County	46.6	-4.7%
42	Gladwin County	46.5	-6.6%
42	Isabella County	46.5	-6.4%
44	Lake County	45.9	-5.4%
44	Manistee County	45.9	-5.7%
44	Mecosta County	45.9	-6.1%
47	Iosco County	45.8	-6.5%
47	Leelanau County	45.8	-6.9%
49	Benzie County	45.7	-6.9%
49	Grand Traverse County	45.7	-6.9%
51	Clare County	45.5	-6.4%
52	Antrim County	45.4	-6.8%
53	Charlevoix County	45.3	-6.8%
53	Ogemaw County	45.3	-6.4%
55	Alpena County	45	-6.8%
55	Presque Isle County	45	-6.4%
57	Cheboygan County	44.9	-6.1%
57	Montmorency County	44.9	-6.7%
57	Osceola County	44.9	-6.1%
60	Roscommon County	44.8	-6.7%
60	Wexford County	44.8	-6.5%
62	Alcona County	44.7	-6.7%
62	Emmet County	44.7	-6.5%
62	Kalkaska County	44.7	-6.9%
62	Missaukee County	44.7	-6.3%
66	Oscoda County	44.5	-6.7%
67	Otsego County	44.3	-6.9%
68	Crawford County	44.2	-6.9%
69	Menominee County	43.7	-6%
70	Delta County	43.1	-5.7%
71	Schoolcraft County	42.5	-5.8%
72	Mackinac County	42.2	-7.3%
73	Dickinson County	42	-6.7%
73	Houghton County	42	-7.1%
75	Alger County	41.7	-7.1%
76	Chippewa County	41.6	-7.8%
76	Keweenaw County	41.6	-6.9%
78	Ontonagon County	41.4	-7.2%
79	Luce County	40.9	-7.7%
79	Marquette County	40.9	-7.3%
81	Baraga County	40.6	-7.3%
82	Gogebic County	40.3	-7.1%
82	Iron County	40.3	-7.1%

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 Michigan 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 Michigan 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/michigan-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 Michigan 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/michigan-counties.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Michigan 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/michigan-counties (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_michigan_by_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Michigan 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/michigan-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 Michigan 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/michigan-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/michigan-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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Rank Counties in Michigan by average annual temperature using official data, and cite the source.

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Questions

Which county has the highest average annual temperature?

Monroe County, with 50.9 °F in 2025, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Iron County, with 40.3 °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.