Average annual temperature is 12.8 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -15.2 °C
Number of sunny days: 206 days
Number of rainy days: 150 days
Number of snow days: 9 days
Look at detailed online map of Walnut
* Weather data for Walnut 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) | 14.9 | 15.6 | 20.3 | 28.5 | 30.7 | 32.5 | 35.7 | 36.5 | 33.1 | 31.2 | 21.4 | 15.0 |
| Average daytime temperature (°C) | 4.7 | 8.6 | 9.6 | 18.6 | 25.4 | 29.1 | 29.8 | 28.9 | 27.4 | 19.3 | 11.7 | 7.7 |
| Average temperature (°C) | 0.1 | 1.8 | 4.2 | 11.6 | 18.8 | 23.0 | 24.1 | 23.7 | 21.1 | 14.2 | 6.3 | 3.8 |
| Average night temperature (°C) | -3.3 | -3.0 | 0.2 | 5.9 | 12.7 | 17.3 | 19.0 | 19.5 | 15.8 | 10.0 | 1.9 | 0.9 |
| Absolute minimum temperature (°C) | -13.6 | -15.2 | -11.6 | -2.0 | 4.4 | 9.0 | 14.1 | 12.9 | 9.8 | -3.3 | -8.2 | -6.3 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 5.6 | 7.6 | 6.8 | 10.1 | 11.5 | 12.2 | 11.4 | 10.5 | 10.3 | 7.5 | 7.4 | 4.9 |
| Precipitation (mm) | 60 | 96 | 95 | 24 | 67 | 66 | 106 | 122 | 17 | 79 | 18 | 90 |
| Sunny days | 16 | 18 | 12 | 20 | 16 | 18 | 14 | 15 | 21 | 18 | 24 | 14 |
| Rainy days | 11 | 8 | 18 | 10 | 15 | 12 | 17 | 16 | 9 | 13 | 6 | 15 |
| Snow days | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Walnut during the most sunny months:
The largest precipitation sum in Walnut is at