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Detroit Weather by Month
Average temperatures, rainfall and humidity for Detroit, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Detroit month looks like before you travel — then check the live Detroit forecast for the days ahead.
Warmest month
July
28°C average high
Coolest month
January
-6°C average low
Wettest month
June
87 mm of rain
Driest month
February
22 mm of rain
Average temperature and rainfall in Detroit by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 0°C | -6°C | -25°C / 15°C | 34 mm | 78% | 14 km/h |
| February | 2°C | -6°C | -30°C / 22°C | 22 mm | 75% | 14 km/h |
| March | 8°C | -1°C | -21°C / 24°C | 47 mm | 69% | 15 km/h |
| April | 15°C | 4°C | -7°C / 29°C | 75 mm | 66% | 15 km/h |
| May | 22°C | 11°C | -1°C / 34°C | 73 mm | 65% | 13 km/h |
| June | 27°C | 16°C | 6°C / 36°C | 87 mm | 67% | 12 km/h |
| July | 28°C | 19°C | 11°C / 37°C | 64 mm | 70% | 10 km/h |
| August | 27°C | 18°C | 9°C / 35°C | 76 mm | 73% | 10 km/h |
| September | 24°C | 15°C | 4°C / 36°C | 71 mm | 75% | 10 km/h |
| October | 17°C | 9°C | -2°C / 31°C | 71 mm | 75% | 12 km/h |
| November | 9°C | 2°C | -13°C / 24°C | 47 mm | 74% | 14 km/h |
| December | 4°C | -2°C | -20°C / 16°C | 42 mm | 79% | 13 km/h |
Best time to visit Detroit
The most comfortable time to visit Detroit is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around June, totalling about 708 mm a year.
Travellers who prefer heat should aim for July, when highs average 28°C. June is the month to avoid if rain would spoil your plans — it averages 87 mm, roughly 4× the rainfall of the driest month (February).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Detroit forecast for what is happening now.