Counties in Michigan by average annual temperature

Monroe County had the highest average annual temperature of 83 counties in 2021, at 52.7 °F. Iron County had the lowest, at 41.6 °F. The median was 48.2 °F and the figure for Michigan was 47.4 °F. Source: NOAA National Centers for Environmental Information.

Highest52.7Monroe County

Lowest41.6Iron County

Median48.283 counties

Michigan47.4History

Map of counties, 2021

Under 45
45 to 47
47 to 48
48 to 50
50 to 51
51 and over

°F, 2021. 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, 2021

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

Full ranking

Rank	Counties	2021 °F	Change on 2020
1	Monroe County	52.7	+1%
2	Wayne County	52.5	+1.7%
3	Macomb County	51.9	+1.4%
4	Berrien County	51.7	+0.8%
5	St. Clair County	51.4	+1.6%
6	Cass County	51.2	+1.2%
7	Lenawee County	51.1	+0.8%
7	Van Buren County	51.1	+1.4%
9	St. Joseph County	51	+1.4%
10	Kalamazoo County	50.9	+1.6%
11	Oakland County	50.7	+1.2%
11	Washtenaw County	50.7	+1.6%
13	Allegan County	50.6	+1.4%
13	Genesee County	50.6	+0.8%
15	Branch County	50.5	+1.4%
16	Calhoun County	50.4	+1.4%
17	Saginaw County	50.3	+0.6%
17	Shiawassee County	50.3	+1%
19	Clinton County	50.2	+1.4%
19	Hillsdale County	50.2	+1.2%
19	Ingham County	50.2	+1.8%
19	Jackson County	50.2	+1.6%
19	Lapeer County	50.2	+1%
19	Livingston County	50.2	+1.4%
19	Ottawa County	50.2	+1%
26	Barry County	50.1	+1.4%
26	Eaton County	50.1	+1.4%
28	Bay County	49.9	+1%
29	Tuscola County	49.8	+0.6%
30	Gratiot County	49.7	+0.4%
30	Midland County	49.7	+0.8%
30	Muskegon County	49.7	+1%
30	Sanilac County	49.7	+0.8%
34	Ionia County	49.6	+1%
35	Kent County	49.5	+1%
36	Huron County	49.2	+0.6%
37	Isabella County	48.9	+0.8%
38	Arenac County	48.8	+1.5%
39	Montcalm County	48.7	+0.6%
40	Gladwin County	48.5	+1.5%
41	Oceana County	48.3	+1.3%
42	Newaygo County	48.2	+1%
43	Iosco County	47.8	+1.7%
44	Leelanau County	47.7	+2.1%
44	Mecosta County	47.7	+0.8%
46	Grand Traverse County	47.6	+1.9%
47	Clare County	47.5	+1.3%
48	Benzie County	47.4	+1.7%
49	Lake County	47.2	+1.3%
49	Mason County	47.2	+1.3%
49	Ogemaw County	47.2	+1.7%
52	Antrim County	47.1	+2.8%
53	Manistee County	47	+1.3%
54	Alpena County	46.9	+2.6%
54	Charlevoix County	46.9	+2.6%
56	Alcona County	46.8	+2.6%
56	Roscommon County	46.8	+1.7%
58	Osceola County	46.6	+0.9%
59	Kalkaska County	46.5	+2%
59	Wexford County	46.5	+1.3%
61	Missaukee County	46.4	+1.3%
62	Oscoda County	46.3	+2.4%
63	Presque Isle County	46.2	+2.4%
64	Emmet County	46.1	+2.4%
64	Montmorency County	46.1	+2.7%
66	Crawford County	46	+2.2%
67	Cheboygan County	45.9	+2.5%
68	Otsego County	45.5	+3.4%
69	Menominee County	44.7	+1.8%
70	Delta County	44.4	+2.3%
70	Mackinac County	44.4	+2.8%
72	Schoolcraft County	44.2	+3%
73	Chippewa County	44.1	+3.5%
74	Houghton County	43.8	+3.8%
75	Alger County	43.7	+3.8%
76	Keweenaw County	43.6	+3.8%
77	Dickinson County	43.4	+3.1%
77	Luce County	43.4	+3.6%
79	Ontonagon County	43	+2.9%
80	Marquette County	42.9	+4.1%
81	Baraga County	42.5	+4.2%
82	Gogebic County	41.6	+2.7%
82	Iron County	41.6	+3.2%

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, 2021) [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, 2021. 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?period=2021. 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, 2021. 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?period=2021.

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, 2021 [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?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_michigan_by_2021,
  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, 2021}},
  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?period=2021. 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, 2021
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?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/michigan-counties?period=2021.
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 52.7 °F in 2021, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Iron County, with 41.6 °F in 2021.

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.