Average annual temperature is 11.3 °C
Absolute maximum temperature: 31.4 °C
Absolute minimum temperature: -12.4 °C
Number of sunny days: 171 days
Number of rainy days: 180 days
Number of snow days: 14 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) | 15.9 | 18.6 | 18.4 | 24.9 | 28.3 | 31.4 | 31.2 | 30.9 | 31.3 | 28.1 | 19.8 | 15.5 |
| Average daytime temperature (°C) | 4.6 | 9.2 | 8.9 | 16.2 | 20.6 | 24.8 | 27.4 | 26.0 | 23.9 | 17.0 | 10.4 | 7.6 |
| Average temperature (°C) | 1.2 | 2.7 | 3.4 | 10.2 | 14.8 | 19.2 | 22.7 | 20.9 | 18.7 | 12.7 | 5.3 | 3.9 |
| Average night temperature (°C) | -1.7 | -1.8 | -0.7 | 5.3 | 9.7 | 14.1 | 18.4 | 16.5 | 14.2 | 8.8 | 1.5 | 1.2 |
| Absolute minimum temperature (°C) | -12.4 | -11.7 | -8.9 | -1.3 | 1.6 | 8.2 | 13.7 | 10.0 | 8.6 | -3.3 | -8.7 | -5.2 |
| 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) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 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) | 3.2 | 7.1 | 7.0 | 8.7 | 10.3 | 10.4 | 12.1 | 10.9 | 9.5 | 6.9 | 7.3 | 4.1 |
| Precipitation (mm) | 114 | 59 | 135 | 76 | 63 | 109 | 94 | 99 | 28 | 64 | 28 | 44 |
| Sunny days | 9 | 18 | 10 | 13 | 18 | 15 | 7 | 14 | 21 | 14 | 21 | 11 |
| Rainy days | 17 | 9 | 15 | 17 | 13 | 15 | 24 | 17 | 9 | 16 | 9 | 19 |
| Snow days | 5 | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
The best time to visit Walnut Grove during the most sunny months:
The largest precipitation sum in Walnut Grove is at