Counties in Michigan by average annual temperature

Monroe County had the highest average annual temperature of 83 counties in 2019, at 50.7 °F. Iron County had the lowest, at 37.6 °F. The median was 44.7 °F and the figure for Michigan was 43.9 °F. Source: NOAA National Centers for Environmental Information.

Highest50.7Monroe County

Lowest37.6Iron County

Median44.783 counties

Michigan43.9History

Map of counties, 2019

Under 41
41 to 43
43 to 45
45 to 47
47 to 48
48 and over

°F, 2019. 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, 2019

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

Full ranking

Rank	Counties	2019 °F	Change on 2018
1	Monroe County	50.7	0%
2	Wayne County	49.8	-0.6%
3	Lenawee County	49.3	-0.6%
4	Macomb County	49.1	-1.2%
5	Berrien County	48.9	-1.4%
6	Van Buren County	48.7	-1%
7	Cass County	48.5	-1.6%
7	St. Clair County	48.5	-0.8%
7	St. Joseph County	48.5	-2%
7	Washtenaw County	48.5	-0.2%
11	Allegan County	48.4	-1%
11	Kalamazoo County	48.4	-1.4%
13	Branch County	48.2	-2%
14	Calhoun County	48.1	-1.8%
15	Hillsdale County	48	-1.2%
15	Jackson County	48	-1.4%
15	Oakland County	48	-1.2%
18	Ottawa County	47.7	-2.1%
19	Barry County	47.6	-1.9%
19	Eaton County	47.6	-1.9%
19	Ingham County	47.6	-1.7%
22	Clinton County	47.5	-1.9%
22	Genesee County	47.5	-1.5%
22	Livingston County	47.5	-1.5%
25	Lapeer County	47.4	-1%
25	Saginaw County	47.4	-1.9%
25	Shiawassee County	47.4	-1.7%
28	Ionia County	47.1	-2.1%
29	Gratiot County	47	-2.1%
29	Kent County	47	-2.1%
31	Muskegon County	46.8	-2.5%
31	Tuscola County	46.8	-1.3%
33	Bay County	46.6	-2.5%
33	Sanilac County	46.6	-1.3%
35	Midland County	46.5	-2.7%
36	Montcalm County	46	-2.1%
37	Isabella County	45.6	-3%
38	Huron County	45.5	-1.9%
39	Oceana County	45.3	-3%
40	Newaygo County	45.2	-3%
41	Arenac County	45	-3.2%
42	Gladwin County	44.7	-3.9%
43	Mecosta County	44.5	-3.1%
44	Mason County	44.4	-3.9%
45	Lake County	44	-3.7%
45	Manistee County	44	-3.9%
47	Iosco County	43.9	-3.3%
48	Clare County	43.8	-4.2%
48	Leelanau County	43.8	-3.7%
50	Benzie County	43.7	-4.2%
50	Grand Traverse County	43.7	-4.2%
52	Ogemaw County	43.2	-3.8%
53	Osceola County	43.1	-4.2%
54	Roscommon County	43	-4.2%
55	Wexford County	42.9	-4.2%
56	Antrim County	42.7	-4.5%
56	Missaukee County	42.7	-4.5%
58	Kalkaska County	42.6	-4.3%
59	Alcona County	42.5	-4.3%
59	Alpena County	42.5	-4.7%
59	Charlevoix County	42.5	-4.3%
62	Oscoda County	42.1	-4.1%
63	Crawford County	42	-4.5%
63	Presque Isle County	42	-4.3%
65	Emmet County	41.9	-3.9%
66	Montmorency County	41.7	-4.6%
67	Cheboygan County	41.6	-4.4%
68	Menominee County	41	-2.8%
69	Otsego County	40.9	-4.7%
70	Delta County	40.6	-2.4%
71	Schoolcraft County	40.1	-2.7%
72	Mackinac County	39.9	-3.6%
73	Alger County	39.5	-2%
74	Houghton County	39.3	-2.5%
75	Dickinson County	39.2	-3.2%
76	Chippewa County	39.1	-4.4%
77	Keweenaw County	38.9	-1.3%
78	Ontonagon County	38.8	-3%
79	Luce County	38.6	-3.5%
80	Marquette County	38.4	-2.3%
81	Baraga County	38	-2.8%
82	Gogebic County	37.8	-3.1%
83	Iron County	37.6	-2.6%

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, 2019) [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, 2019. 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=2019. 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, 2019. 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=2019.

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, 2019 [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=2019 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_michigan_by_2019,
  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, 2019}},
  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=2019. 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, 2019
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=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/michigan-counties?period=2019.
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?

Monroe County, with 50.7 °F in 2019, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Iron County, with 37.6 °F in 2019.

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.