Grand Rapids Climate by Month
Grand Rapids, Michigan, United States
Warm summers and freezing winters, with rain spread through the year.
Warm summers and freezing winters, with rain spread through the year: that's Grand Rapids's climate in short. Afternoon highs range from 32°F (0°C) in January to 84°F (29°C) in July, and January nights average 18°F (-8°C). It gets 37 in (944 mm) of rain a year, spread across the months.
- Warmest month
- 84°F(29°C)
- Average high, July
- Coldest nights
- 18°F(-8°C)
- Average low, January
- Rain per year
- 37 in(944 mm)
- No clear rainy season
- Humidity
- 71%
- Sunniest: July
Best and worst months in Grand Rapids
Best for weatherSeptember is the best time for weather in Grand Rapids: highs near 75°F (24°C) and about 3.7 in (94 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 32°F (0°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Grand Rapids weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 32°F(0°C) | 18°F(-8°C) | 2.4 in(60 mm) | 88% | 1.3 |
| FebFebruary | 35°F(1°C) | 19°F(-7°C) | 1.7 in(43 mm) | 81% | 2.1 |
| MarMarch | 45°F(7°C) | 27°F(-3°C) | 2.3 in(59 mm) | 70% | 3.5 |
| AprApril | 58°F(15°C) | 36°F(2°C) | 3.6 in(92 mm) | 63% | 4.4 |
| MayMay | 71°F(22°C) | 48°F(9°C) | 4.4 in(111 mm) | 64% | 5.1 |
| JunJune | 80°F(27°C) | 57°F(14°C) | 3.7 in(95 mm) | 67% | 5.8 |
| JulJuly | 84°F(29°C) | 61°F(16°C) | 3.1 in(78 mm) | 66% | 6.0 |
| AugAugust | 82°F(28°C) | 59°F(15°C) | 3.5 in(88 mm) | 70% | 5.0 |
| SepSeptemberBest | 75°F(24°C) | 52°F(11°C) | 3.7 in(94 mm) | 70% | 4.2 |
| OctOctober | 62°F(17°C) | 41°F(5°C) | 3.3 in(83 mm) | 69% | 2.5 |
| NovNovember | 48°F(9°C) | 32°F(0°C) | 2.9 in(73 mm) | 72% | 1.5 |
| DecDecember | 36°F(2°C) | 24°F(-5°C) | 2.7 in(68 mm) | 71% | 1.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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