Wayne County · Michigan
Detroit, MI weather averages
NOAA climate normals for 1991-2020, measured at Detroit City Ap, 7.9 km from the city centre — month by month temperature, rain and snow.
Quick answer
Detroit averages a daily high of 57.9°F and a daily low of 42.8°F across the year, with 31.33 inches of precipitation. July is the warmest month at 82.6°F and January the coldest at 20.3°F.
- Average annual high
- 57.9°FWarmest month July
- Average annual low
- 42.8°FColdest month January
- Precipitation per year
- 31.33 inWettest month September
- Snowfall per year
- —109.4 days at or below 32°F
Detroit weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 31.4 | 20.3 | 1.4 | — | 20.3 to 31.4 degrees |
| February | 34.4 | 22.1 | 1.7 | — | 22.1 to 34.4 degrees |
| March | 44.2 | 28.9 | 2.02 | — | 28.9 to 44.2 degrees |
| April | 57.4 | 39.6 | 2.78 | — | 39.6 to 57.4 degrees |
| May | 68.7 | 50.1 | 3.07 | — | 50.1 to 68.7 degrees |
| June | 78.3 | 60.3 | 3.25 | — | 60.3 to 78.3 degrees |
| July | 82.6 | 65.2 | 3.03 | — | 65.2 to 82.6 degrees |
| August | 80.4 | 64 | 3.16 | — | 64 to 80.4 degrees |
| September | 73 | 56.1 | 3.39 | — | 56.1 to 73 degrees |
| October | 60.2 | 44.8 | 2.72 | — | 44.8 to 60.2 degrees |
| November | 47.7 | 35.4 | 2.84 | — | 35.4 to 47.7 degrees |
| December | 35.5 | 25.2 | 1.97 | — | 25.2 to 35.5 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00014822, Detroit City Ap · rates as published for 1991-2020 normals
How to read Detroit climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Detroit City Ap, 7.9 km from the centre of Detroit. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Detroit sees about 7.6 days a year at or above 90°F.
Keep going
Other Detroit data on this site.