Average annual temperature is 15.5 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -6.9 °C
Number of sunny days: 185 days
Number of rainy days: 180 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) | 18.9 | 23.7 | 25.2 | 28.0 | 30.2 | 35.1 | 35.9 | 36.4 | 31.9 | 29.6 | 26.2 | 17.9 |
| Average daytime temperature (°C) | 11.1 | 14.2 | 15.2 | 20.7 | 25.4 | 29.9 | 31.2 | 30.2 | 27.9 | 21.8 | 15.5 | 11.7 |
| Average temperature (°C) | 6.5 | 8.1 | 9.3 | 14.2 | 19.3 | 23.4 | 25.5 | 24.7 | 21.9 | 16.3 | 9.6 | 6.6 |
| Average night temperature (°C) | 3.0 | 3.9 | 4.7 | 8.9 | 14.2 | 17.6 | 21.1 | 20.5 | 17.1 | 12.1 | 5.4 | 3.0 |
| Absolute minimum temperature (°C) | -4.2 | -6.9 | -6.3 | 1.6 | 5.2 | 11.2 | 16.6 | 14.4 | 12.8 | -1.4 | -3.8 | -5.5 |
| 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 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 5.0 | 7.1 | 7.5 | 9.5 | 11.2 | 12.1 | 11.2 | 10.1 | 10.9 | 7.4 | 8.0 | 6.6 |
| Precipitation (mm) | 114 | 68 | 192 | 118 | 106 | 94 | 138 | 205 | 53 | 73 | 47 | 60 |
| Sunny days | 12 | 14 | 17 | 16 | 16 | 18 | 7 | 13 | 15 | 20 | 22 | 15 |
| Rainy days | 19 | 14 | 14 | 14 | 15 | 12 | 24 | 18 | 15 | 11 | 8 | 16 |
| 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