Average annual temperature is 17.3 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: -4.9 °C
Number of sunny days: 175 days
Number of rainy days: 190 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) | 21.2 | 26.8 | 26.6 | 29.1 | 31.5 | 36.7 | 35.8 | 38.3 | 33.3 | 30.9 | 27.0 | 20.3 |
| Average daytime temperature (°C) | 13.7 | 16.4 | 18.0 | 21.5 | 26.7 | 31.8 | 32.3 | 32.4 | 29.9 | 24.7 | 17.6 | 14.0 |
| Average temperature (°C) | 8.9 | 10.5 | 12.2 | 15.4 | 20.6 | 24.8 | 26.6 | 26.5 | 23.4 | 18.5 | 11.6 | 8.4 |
| Average night temperature (°C) | 5.1 | 6.2 | 7.4 | 10.3 | 15.4 | 19.2 | 22.0 | 22.0 | 18.1 | 13.6 | 6.9 | 4.3 |
| Absolute minimum temperature (°C) | -3.2 | -4.3 | -4.9 | 3.4 | 7.5 | 14.6 | 18.0 | 16.4 | 14.0 | 0.8 | -1.3 | -2.9 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.3 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 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) | 5.3 | 6.1 | 8.0 | 8.3 | 10.9 | 11.9 | 11.0 | 10.2 | 10.6 | 8.5 | 7.2 | 7.1 |
| Precipitation (mm) | 132 | 110 | 185 | 159 | 98 | 69 | 180 | 109 | 40 | 20 | 100 | 54 |
| Sunny days | 13 | 11 | 16 | 10 | 11 | 13 | 11 | 13 | 14 | 23 | 21 | 19 |
| Rainy days | 18 | 17 | 15 | 20 | 20 | 17 | 20 | 18 | 16 | 8 | 9 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Walnut during the most sunny months:
The largest precipitation sum in Walnut is at