Detroit, MI Weather & Climate Normals
What a normal year in Detroit actually looks like
On the 30-year record NOAA keeps for Detroit, MI, the comfort score comes out to 49/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Detroit's weather actually swings
Average temperatures in Detroit run from 26°F in Jan up to 74°F in Jul, a 47.6°F seasonal swing, one of the widest gaps in this dataset.
Detroit, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 33°F | 19°F | 2.07in |
| Feb | 36°F | 20°F | 2.06in |
| Mar | 46°F | 27°F | 2.5in |
| Apr | 59°F | 37°F | 3.23in |
| May | 70°F | 48°F | 3.69in |
| Jun | 79°F | 59°F | 3.67in |
| Jul | 84°F | 63°F | 3.39in |
| Aug | 82°F | 62°F | 3.51in |
| Sep | 75°F | 55°F | 3.04in |
| Oct | 63°F | 43°F | 2.76in |
| Nov | 49°F | 33°F | 2.62in |
| Dec | 37°F | 25°F | 2.35in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Detroit's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Detroit actually gets
Detroit averages 34.89in of precipitation a year across roughly 0 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Detroit against the rest of the country
Out of 4876 cities scored here, Detroit comes in at 2015; within MI alone it ranks 9 of 153. Population is about 645,705.
Checking the actual forecast
These figures come from Dearborn #2, MI US, the NOAA station 4.4 miles from Detroit, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is