Average annual temperature is 14.3 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 176 days
Number of rainy days: 185 days
Number of snow days: 4 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) | 20.8 | 25.6 | 26.1 | 29.1 | 28.5 | 31.8 | 34.3 | 33.8 | 32.3 | 28.3 | 25.5 | 19.1 |
| Average daytime temperature (°C) | 11.6 | 14.8 | 15.4 | 21.0 | 23.5 | 26.6 | 30.8 | 29.0 | 27.0 | 21.2 | 15.8 | 11.6 |
| Average temperature (°C) | 6.0 | 8.7 | 9.0 | 13.8 | 17.0 | 20.3 | 24.3 | 23.0 | 20.2 | 14.6 | 8.6 | 5.7 |
| Average night temperature (°C) | 2.1 | 3.9 | 3.7 | 7.4 | 11.1 | 14.7 | 18.8 | 18.1 | 14.5 | 9.1 | 3.2 | 1.4 |
| Absolute minimum temperature (°C) | -6.2 | -6.6 | -6.2 | 0.9 | 3.3 | 7.3 | 13.6 | 13.1 | 10.0 | 1.9 | -4.7 | -5.1 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 5.9 | 8.1 | 9.1 | 10.0 | 11.3 | 11.7 | 10.4 | 10.6 | 8.7 | 7.8 | 5.9 |
| Precipitation (mm) | 134 | 129 | 98 | 91 | 119 | 91 | 90 | 138 | 44 | 36 | 50 | 87 |
| Sunny days | 14 | 11 | 15 | 16 | 13 | 11 | 11 | 12 | 19 | 18 | 22 | 14 |
| Rainy days | 15 | 17 | 16 | 14 | 18 | 19 | 20 | 19 | 11 | 13 | 8 | 15 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Walnut Grove during the most sunny months:
The largest precipitation sum in Walnut Grove is at