Average annual temperature is 15.5 °C
Absolute maximum temperature: 40.9 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 285 days
Number of rainy days: 80 days
Look at detailed online map of California Valley
* Weather data for California Valley 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) | 17.6 | 20.9 | 19.1 | 31.9 | 33.5 | 37.8 | 40.9 | 37.9 | 34.5 | 34.2 | 27.2 | 21.9 |
| Average daytime temperature (°C) | 12.3 | 13.0 | 12.9 | 21.9 | 24.3 | 26.7 | 36.4 | 32.6 | 28.1 | 26.1 | 19.7 | 16.0 |
| Average temperature (°C) | 7.1 | 6.4 | 7.9 | 14.3 | 16.7 | 18.5 | 28.4 | 25.0 | 20.6 | 18.3 | 12.4 | 9.6 |
| Average night temperature (°C) | 3.5 | 1.6 | 4.2 | 8.0 | 10.6 | 12.4 | 20.3 | 18.3 | 14.7 | 11.7 | 6.9 | 5.3 |
| Absolute minimum temperature (°C) | -0.6 | -3.1 | -1.1 | -0.2 | 5.6 | 8.4 | 12.2 | 13.2 | 10.2 | 4.6 | 0.5 | 1.3 |
| 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 | 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 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.1 | 8.9 | 8.3 | 12.0 | 12.4 | 12.6 | 13.3 | 12.0 | 11.0 | 10.3 | 8.9 | 7.3 |
| Precipitation (mm) | 193 | 99 | 115 | 0 | 15 | 11 | 0 | 12 | 0 | 0 | 23 | 55 |
| Sunny days | 13 | 17 | 13 | 30 | 23 | 26 | 31 | 26 | 28 | 31 | 23 | 24 |
| Rainy days | 18 | 11 | 18 | 0 | 8 | 4 | 0 | 5 | 2 | 0 | 7 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit California Valley during the most sunny months:
The largest precipitation sum in California Valley is at