Rainy days · Michigan
How often does it rain in Grand Rapids?
Grand Rapids collects wet days the way Michigan collects lakes: casually and in bulk.
Grand Rapids gets measurable rain or snow on about 149 days a year, adding up to about 39 inches.
November usually brings Grand Rapids about 13 wet days and 3.1 inches. The wettest month is usually January, with about 17 wet days, and the driest is August, with about 10 wet days. That makes Grand Rapids number 15 of the 129 US cities we track, rainiest first.
Last updated
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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 | 17 | 2.5 |
| February | 13 | 2.1 |
| March | 12 | 2.4 |
| April | 13 | 4.0 |
| May | 13 | 4.0 |
| June | 11 | 3.9 |
| July | 10 | 3.9 |
| August | 10 | 3.5 |
| September | 10 | 3.4 |
| October | 13 | 4.0 |
| November | 13 | 3.1 |
| December | 16 | 2.5 |
Cities with about as many rainy days
- South Bend, Indiana: about 147 wet days a year
- Eugene, Oregon: about 146 wet days a year
- Pittsburgh, Pennsylvania: about 154 wet days a year
Source: NOAA daily precipitation records for the Grand Rapids 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.