Average annual temperature is 19.4 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: -3.2 °C
Number of sunny days: 177 days
Number of rainy days: 188 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) | 24.1 | 28.8 | 28.9 | 30.2 | 33.4 | 36.4 | 37.2 | 39.6 | 34.6 | 31.5 | 28.0 | 24.5 |
| Average daytime temperature (°C) | 16.9 | 19.7 | 22.0 | 23.5 | 29.1 | 32.6 | 34.0 | 35.9 | 32.0 | 26.2 | 19.4 | 15.9 |
| Average temperature (°C) | 11.7 | 13.4 | 15.4 | 17.4 | 22.4 | 25.9 | 27.6 | 29.3 | 25.5 | 19.8 | 13.4 | 10.2 |
| Average night temperature (°C) | 7.8 | 9.1 | 10.6 | 12.7 | 17.0 | 20.8 | 23.0 | 24.1 | 20.2 | 14.6 | 9.0 | 5.9 |
| Absolute minimum temperature (°C) | -1.6 | -1.6 | -3.2 | 8.2 | 9.0 | 18.1 | 19.8 | 18.9 | 15.7 | 5.6 | 0.3 | -0.6 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| 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) | 6.3 | 7.2 | 8.9 | 8.8 | 10.6 | 11.7 | 11.3 | 11.4 | 10.8 | 8.9 | 6.7 | 7.9 |
| Precipitation (mm) | 163 | 199 | 86 | 240 | 68 | 117 | 156 | 49 | 24 | 25 | 59 | 84 |
| Sunny days | 14 | 7 | 16 | 13 | 11 | 9 | 10 | 18 | 16 | 23 | 18 | 22 |
| Rainy days | 17 | 21 | 15 | 17 | 20 | 21 | 21 | 13 | 14 | 8 | 12 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Walnut Grove during the most sunny months:
The largest precipitation sum in Walnut Grove is at