Average annual temperature is 13.5 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: -9.1 °C
Number of sunny days: 164 days
Number of rainy days: 194 days
Number of snow days: 7 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) | 21.0 | 23.2 | 23.7 | 29.3 | 28.3 | 31.3 | 32.7 | 30.6 | 30.8 | 27.4 | 23.7 | 18.6 |
| Average daytime temperature (°C) | 10.4 | 13.5 | 13.2 | 20.3 | 22.3 | 26.2 | 28.8 | 27.3 | 24.4 | 19.6 | 13.7 | 10.8 |
| Average temperature (°C) | 5.2 | 6.9 | 7.0 | 13.3 | 16.3 | 20.2 | 23.5 | 22.2 | 19.2 | 14.4 | 7.5 | 5.8 |
| Average night temperature (°C) | 1.6 | 2.1 | 2.0 | 7.5 | 10.7 | 14.6 | 18.9 | 17.9 | 14.9 | 10.3 | 2.9 | 2.3 |
| Absolute minimum temperature (°C) | -7.2 | -9.1 | -8.2 | 0.4 | 3.0 | 9.9 | 14.8 | 12.7 | 10.2 | 1.7 | -7.0 | -5.0 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.1 | 6.8 | 7.2 | 8.9 | 9.9 | 11.0 | 11.7 | 10.3 | 9.5 | 7.3 | 7.4 | 5.0 |
| Precipitation (mm) | 91 | 86 | 89 | 62 | 71 | 52 | 112 | 130 | 81 | 53 | 47 | 93 |
| Sunny days | 10 | 14 | 14 | 19 | 17 | 13 | 7 | 7 | 14 | 16 | 20 | 13 |
| Rainy days | 19 | 13 | 15 | 11 | 14 | 17 | 24 | 24 | 16 | 15 | 9 | 17 |
| Snow days | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Walnut during the most sunny months:
The largest precipitation sum in Walnut is at