Average annual temperature is 11.8 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -11.9 °C
Number of sunny days: 176 days
Number of rainy days: 176 days
Number of snow days: 13 days
Look at detailed online map of Walnut Grove
* Weather data for Walnut Grove 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) | 16.6 | 19.5 | 19.1 | 26.0 | 28.9 | 31.8 | 31.8 | 31.0 | 32.2 | 28.9 | 20.2 | 16.4 |
| Average daytime temperature (°C) | 5.1 | 9.5 | 9.4 | 17.1 | 21.3 | 25.7 | 28.2 | 26.6 | 24.4 | 17.8 | 11.0 | 8.4 |
| Average temperature (°C) | 1.6 | 2.9 | 3.8 | 10.7 | 15.2 | 19.8 | 23.1 | 21.3 | 19.1 | 13.1 | 5.7 | 4.6 |
| Average night temperature (°C) | -1.4 | -1.7 | -0.4 | 5.1 | 9.5 | 14.3 | 18.5 | 16.6 | 14.3 | 9.2 | 1.7 | 1.7 |
| Absolute minimum temperature (°C) | -11.9 | -11.0 | -8.1 | -1.1 | 1.7 | 8.6 | 14.0 | 10.4 | 8.6 | -2.8 | -8.1 | -4.8 |
| 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) | 9.6 | 10.7 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.1 | 7.1 | 7.0 | 8.9 | 10.5 | 10.5 | 12.0 | 10.7 | 9.1 | 6.9 | 7.2 | 4.0 |
| Precipitation (mm) | 132 | 77 | 121 | 75 | 67 | 138 | 94 | 101 | 16 | 50 | 27 | 46 |
| Sunny days | 8 | 17 | 11 | 12 | 20 | 14 | 7 | 15 | 21 | 15 | 23 | 13 |
| Rainy days | 17 | 10 | 15 | 18 | 11 | 16 | 24 | 16 | 9 | 15 | 7 | 18 |
| Snow days | 6 | 1 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
The best time to visit Walnut Grove during the most sunny months:
The largest precipitation sum in Walnut Grove is at