Average annual temperature is 20.2 °C
Absolute maximum temperature: 41.5 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 194 days
Number of rainy days: 171 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) | 24.0 | 26.0 | 27.3 | 29.9 | 31.5 | 38.4 | 38.7 | 41.5 | 39.4 | 32.9 | 28.4 | 23.8 |
| Average daytime temperature (°C) | 16.2 | 18.0 | 21.6 | 23.1 | 27.6 | 33.1 | 35.9 | 39.0 | 33.3 | 26.0 | 19.2 | 16.6 |
| Average temperature (°C) | 11.4 | 12.1 | 15.9 | 17.2 | 22.4 | 27.0 | 30.1 | 32.8 | 27.5 | 20.3 | 13.8 | 11.0 |
| Average night temperature (°C) | 7.5 | 8.0 | 11.7 | 12.7 | 17.9 | 22.2 | 25.2 | 26.9 | 22.6 | 16.0 | 9.7 | 6.5 |
| Absolute minimum temperature (°C) | -0.5 | -1.8 | 0.0 | 8.0 | 11.0 | 18.4 | 22.3 | 21.8 | 19.3 | 3.3 | 0.5 | -0.8 |
| 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 | 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 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| 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) | 6.7 | 6.5 | 8.2 | 8.2 | 9.7 | 10.6 | 11.7 | 12.3 | 10.7 | 8.2 | 7.0 | 7.6 |
| Precipitation (mm) | 128 | 129 | 163 | 253 | 113 | 94 | 56 | 15 | 34 | 81 | 83 | 51 |
| Sunny days | 18 | 11 | 13 | 9 | 13 | 7 | 18 | 27 | 16 | 20 | 20 | 22 |
| Rainy days | 13 | 17 | 18 | 21 | 18 | 23 | 13 | 4 | 14 | 11 | 10 | 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