Average annual temperature is 19.6 °C
Absolute maximum temperature: 41.3 °C
Absolute minimum temperature: -1.5 °C
Number of sunny days: 208 days
Number of rainy days: 157 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) | 23.9 | 26.7 | 27.4 | 29.9 | 33.2 | 38.5 | 38.5 | 41.3 | 37.3 | 33.3 | 27.8 | 21.9 |
| Average daytime temperature (°C) | 16.1 | 18.1 | 21.6 | 23.2 | 28.7 | 34.0 | 34.9 | 37.9 | 32.4 | 25.8 | 18.6 | 16.1 |
| Average temperature (°C) | 11.2 | 12.1 | 15.3 | 17.0 | 22.7 | 27.3 | 28.9 | 31.0 | 26.0 | 19.9 | 13.2 | 10.4 |
| Average night temperature (°C) | 7.7 | 8.0 | 10.7 | 12.5 | 17.6 | 22.0 | 24.3 | 25.7 | 21.2 | 15.4 | 8.9 | 6.2 |
| Absolute minimum temperature (°C) | -1.0 | -1.1 | -1.5 | 7.6 | 10.1 | 19.4 | 20.6 | 20.3 | 17.7 | 4.1 | 0.3 | 0.2 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 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 | 9.0 |
| Sunshine mean duration (h) | 6.4 | 6.9 | 8.4 | 7.8 | 10.2 | 11.5 | 11.6 | 11.8 | 10.5 | 8.0 | 7.1 | 7.5 |
| Precipitation (mm) | 144 | 124 | 145 | 222 | 137 | 49 | 57 | 83 | 46 | 100 | 43 | 58 |
| Sunny days | 14 | 11 | 13 | 13 | 17 | 14 | 18 | 25 | 18 | 20 | 21 | 24 |
| Rainy days | 17 | 17 | 18 | 17 | 14 | 16 | 13 | 6 | 12 | 11 | 9 | 7 |
| 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