Average annual temperature is 15.2 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: -8.5 °C
Number of sunny days: 209 days
Number of rainy days: 156 days
Look at detailed online map of Mason Valley
* Weather data for Mason 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) | 19.3 | 20.8 | 24.5 | 26.3 | 30.2 | 37.9 | 36.8 | 38.3 | 34.2 | 29.9 | 25.5 | 17.9 |
| Average daytime temperature (°C) | 10.1 | 13.0 | 14.7 | 19.8 | 25.3 | 30.3 | 32.2 | 32.8 | 28.8 | 20.8 | 15.7 | 11.0 |
| Average temperature (°C) | 4.7 | 6.4 | 8.7 | 13.4 | 19.0 | 23.7 | 26.0 | 26.3 | 22.3 | 15.6 | 9.4 | 6.0 |
| Average night temperature (°C) | 0.9 | 1.6 | 4.3 | 8.1 | 13.9 | 18.1 | 21.2 | 21.3 | 17.3 | 11.7 | 5.0 | 2.6 |
| Absolute minimum temperature (°C) | -8.4 | -8.5 | -7.2 | 2.4 | 4.8 | 12.8 | 16.8 | 14.5 | 13.1 | -1.7 | -5.2 | -3.6 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.6 | 6.8 | 7.3 | 9.6 | 10.6 | 12.5 | 11.3 | 11.5 | 10.4 | 7.9 | 7.7 | 5.8 |
| Precipitation (mm) | 78 | 104 | 207 | 66 | 105 | 77 | 78 | 78 | 62 | 71 | 45 | 62 |
| Sunny days | 17 | 18 | 16 | 18 | 15 | 14 | 16 | 18 | 20 | 18 | 20 | 19 |
| Rainy days | 14 | 10 | 15 | 12 | 16 | 16 | 15 | 13 | 10 | 13 | 10 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Mason Valley during the most sunny months:
The largest precipitation sum in Mason Valley is at