Average annual temperature is 21.5 °C
Absolute maximum temperature: 45.8 °C
Absolute minimum temperature: -3.7 °C
Number of sunny days: 305 days
Number of rainy days: 60 days
Look at detailed online map of Town of Grandfalls
* Weather data for Town of Grandfalls 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) | 27.2 | 32.6 | 32.8 | 36.2 | 36.5 | 45.8 | 43.3 | 43.3 | 41.0 | 35.2 | 33.8 | 26.8 |
| Average daytime temperature (°C) | 18.8 | 20.1 | 26.1 | 29.1 | 32.9 | 39.8 | 39.3 | 39.0 | 37.0 | 29.2 | 21.3 | 18.7 |
| Average temperature (°C) | 10.8 | 10.9 | 16.7 | 20.1 | 25.1 | 31.9 | 32.7 | 32.7 | 29.9 | 21.7 | 13.9 | 11.0 |
| Average night temperature (°C) | 4.1 | 4.6 | 9.5 | 12.8 | 18.2 | 24.0 | 26.1 | 26.3 | 23.1 | 15.6 | 8.5 | 4.7 |
| Absolute minimum temperature (°C) | -3.7 | -3.5 | 1.5 | 7.2 | 13.9 | 17.7 | 22.8 | 21.8 | 19.9 | 1.1 | 1.4 | -2.5 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 14.0 | 13.3 | 12.4 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.4 | 8.3 | 9.7 | 11.0 | 11.2 | 12.7 | 12.8 | 11.7 | 11.2 | 9.2 | 7.7 | 8.5 |
| Precipitation (mm) | 9 | 12 | 5 | 1 | 27 | 1 | 2 | 9 | 1 | 22 | 10 | 3 |
| Sunny days | 29 | 19 | 29 | 26 | 19 | 27 | 28 | 26 | 28 | 22 | 25 | 27 |
| Rainy days | 2 | 9 | 2 | 4 | 12 | 3 | 3 | 5 | 2 | 9 | 5 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Town of Grandfalls during the most sunny months:
The largest precipitation sum in Town of Grandfalls is at