Average annual temperature is 11.3 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -10.3 °C
Number of sunny days: 135 days
Number of rainy days: 207 days
Number of snow days: 23 days
Look at detailed online map of Grand River
* Weather data for Grand River 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) | 14.2 | 19.0 | 16.7 | 26.3 | 27.1 | 29.3 | 32.3 | 29.1 | 30.4 | 26.4 | 17.5 | 15.9 |
| Average daytime temperature (°C) | 4.9 | 7.6 | 6.5 | 14.2 | 18.2 | 22.5 | 25.9 | 24.1 | 22.0 | 16.4 | 9.8 | 8.0 |
| Average temperature (°C) | 1.8 | 1.8 | 2.7 | 9.7 | 13.7 | 18.7 | 22.3 | 20.9 | 18.6 | 13.3 | 6.4 | 5.1 |
| Average night temperature (°C) | -0.5 | -1.7 | -0.3 | 5.3 | 9.6 | 15.3 | 19.2 | 18.2 | 15.6 | 10.9 | 3.4 | 3.0 |
| Absolute minimum temperature (°C) | -10.3 | -10.3 | -5.3 | -1.5 | 2.2 | 11.1 | 16.9 | 14.2 | 9.8 | 3.3 | -6.8 | -2.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.9 | 6.5 | 6.4 | 9.0 | 11.4 | 11.5 | 12.2 | 10.9 | 9.6 | 6.3 | 6.0 | 3.4 |
| Precipitation (mm) | 145 | 67 | 101 | 121 | 53 | 116 | 97 | 89 | 63 | 79 | 70 | 110 |
| Sunny days | 5 | 11 | 7 | 14 | 22 | 14 | 4 | 8 | 15 | 12 | 15 | 8 |
| Rainy days | 17 | 12 | 19 | 16 | 9 | 16 | 27 | 23 | 15 | 19 | 13 | 21 |
| Snow days | 9 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Grand River during the most sunny months:
The largest precipitation sum in Grand River is at