Michigan has an average annual temperature of
48.7°F
(across all 44 cities) with approximately
850 mm of annual precipitation
and average humidity of 79%.
The warmest city is Monroe
with average July highs of 91.2°F,
while Midland
is the coldest with average January lows of -5.1°F.
This page covers 45 years of NASA POWER climate data (1981–2025)
including temperature, rainfall, humidity, wind speed, and solar radiation.
Aug is typically the warmest month across Michigan with average highs around
88.5°F, while
Jan is the coldest with average lows near
-0.4°F.
Jun is the wettest month with approximately
87 mm of rainfall on average.
Month
Max Temp
Min Temp
Avg Temp
Rain (mm)
Humidity
Wind (m/s)
Solar (kWh/m²)
Jan
45.3°F
-0.4°F
22.5°F
50
88%
4.3
1.50
Feb
49.5°F
2.1°F
25.7°F
48
85%
4.2
2.40
Mar
63.9°F
10.4°F
37°F
56
79%
4.0
3.50
Apr
73°F
23.2°F
48.2°F
78
76%
3.8
4.60
May
79.7°F
33.4°F
56.7°F
87
75%
3.2
5.50
Jun
85.6°F
43.9°F
64.8°F
87
75%
2.8
6.10
Jul
88.5°F
52°F
70.3°F
87
74%
2.5
6.10
Aug
88.5°F
51.1°F
69.8°F
87
73%
2.5
5.20
Sep
85.8°F
41.5°F
63.7°F
84
74%
2.8
4.20
Oct
76.6°F
30.6°F
53.6°F
74
77%
3.4
2.70
Nov
63.7°F
20.5°F
42.1°F
66
81%
3.8
1.70
Dec
49.8°F
8.4°F
29.1°F
56
86%
4.0
1.20
📈 Michigan Yearly Climate Trends
🌡️ Annual Temperature Trend
State-wide avg annual high & low · Last 10 years
📈 Michigan Long-Term Climate Trends (1981–2025)
This chart shows how Michigan's average temperatures have shifted across 45 years.
Use the range buttons to focus on recent decades or view the full historical record.
Data is averaged across all 44 cities in the state.
🌧️ Annual Precipitation Trend
State-wide avg annual precipitation · Last 10 years · mm/year
🔗 Explore Cities in Michigan
Browse detailed weather history, monthly averages, and 45-year climate trends for every city in Michigan.
Portage is the wettest city in Michigan with approximately 940 mm of annual precipitation on average. View Portage weather history →
What is the warmest month in Michigan?▼
Aug is the warmest month across Michigan, with state-wide average highs of 88.5°F and average lows of 51.1°F.
How many cities in Michigan have weather data?▼
TownPillar has historical weather data for 44 cities in Michigan, covering 45 years of NASA POWER climate records from 1981 to 2025.
Which month has the most sunshine in Michigan?▼
Jul is the sunniest month across Michigan with an average solar radiation of 6.10 kWh/m²/day state-wide. This solar radiation data from NASA POWER is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability.
Where does this climate data come from?▼
All data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis data. It includes monthly temperature, precipitation, humidity, wind speed, and solar radiation at 0.5° × 0.625° spatial resolution.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources). Data covers 45 years (1981–2025) across 44 cities in Michigan at monthly temporal resolution.