Average annual temperature is 11.4 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -23.7 °C
Number of sunny days: 160 days
Number of rainy days: 197 days
Number of snow days: 8 days
Look at detailed online map of Grants Mills
* Weather data for Grants Mills United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.4 | 16.8 | 15.2 | 33.2 | 29.0 | 33.2 | 31.9 | 29.3 | 33.6 | 28.3 | 18.4 | 15.5 |
| Average daytime temperature (°C) | 6.4 | 6.3 | 8.7 | 16.9 | 21.0 | 24.0 | 28.2 | 25.7 | 23.0 | 18.8 | 9.5 | 8.0 |
| Average temperature (°C) | 2.7 | 1.3 | 3.7 | 10.7 | 14.6 | 18.1 | 23.3 | 20.9 | 18.5 | 13.8 | 4.6 | 3.8 |
| Average night temperature (°C) | -0.6 | -3.3 | -0.6 | 5.6 | 8.8 | 13.6 | 19.3 | 16.9 | 15.0 | 10.0 | 0.7 | 0.5 |
| Absolute minimum temperature (°C) | -6.0 | -23.7 | -4.7 | -3.4 | 2.3 | 7.5 | 14.2 | 12.6 | 7.6 | 3.0 | -5.2 | -6.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.8 | 6.4 | 7.3 | 8.4 | 11.6 | 9.5 | 10.6 | 9.1 | 7.3 | 7.6 | 6.9 | 5.2 |
| Precipitation (mm) | 184 | 47 | 117 | 75 | 78 | 118 | 238 | 172 | 239 | 93 | 51 | 172 |
| Sunny days | 9 | 13 | 16 | 14 | 20 | 6 | 6 | 12 | 10 | 15 | 22 | 17 |
| Rainy days | 17 | 13 | 15 | 16 | 11 | 24 | 25 | 19 | 20 | 16 | 8 | 13 |
| Snow days | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Grants Mills during the most sunny months:
The largest precipitation sum in Grants Mills is at