Rainy days · Michigan
How often does it rain in Detroit?
Detroit’s rain rolls in like it’s been on the assembly line all week and wants overtime.
Detroit gets measurable rain or snow on about 136 days a year, adding up to about 34 inches.
November usually brings Detroit about 11 wet days and 2.6 inches. The wettest month is usually January, with about 13 wet days, and the driest is September, with about 10 wet days. That makes Detroit number 24 of the 129 US cities we track, rainiest first.
Last updated
No rain in the forecast for the next 48 hours.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 13 | 2.2 |
| February | 11 | 2.1 |
| March | 11 | 2.4 |
| April | 13 | 3.3 |
| May | 13 | 3.7 |
| June | 11 | 3.3 |
| July | 11 | 3.5 |
| August | 10 | 3.3 |
| September | 10 | 3.2 |
| October | 11 | 2.5 |
| November | 11 | 2.6 |
| December | 13 | 2.3 |
Cities with about as many rainy days
- Cincinnati, Ohio: about 136 wet days a year
- Fort Wayne, Indiana: about 135 wet days a year
- Lansing, Michigan: about 138 wet days a year
Source: NOAA daily precipitation records for the Detroit area, 1991 to 2020 (at least 30 complete years behind every month), via the Applied Climate Information System. A wet day here means at least a hundredth of an inch of rain or melted snow.