Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -11.0 °C
Number of sunny days: 149 days
Number of rainy days: 203 days
Number of snow days: 13 days
Look at detailed online map of Sun Valley
* Weather data for Sun 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) | 16.0 | 21.4 | 20.6 | 27.6 | 31.0 | 33.8 | 33.2 | 32.7 | 33.6 | 28.2 | 18.7 | 15.9 |
| Average daytime temperature (°C) | 7.6 | 11.1 | 10.5 | 18.4 | 22.3 | 26.2 | 29.4 | 27.6 | 24.9 | 18.5 | 11.5 | 9.0 |
| Average temperature (°C) | 3.4 | 4.3 | 4.8 | 11.7 | 15.6 | 19.9 | 23.4 | 21.8 | 19.1 | 13.5 | 6.2 | 4.9 |
| Average night temperature (°C) | 0.5 | -0.4 | 0.5 | 6.1 | 9.8 | 14.5 | 18.9 | 17.3 | 14.5 | 9.7 | 2.3 | 2.0 |
| Absolute minimum temperature (°C) | -5.7 | -11.0 | -7.1 | -1.4 | 2.4 | 9.5 | 15.1 | 12.6 | 9.1 | 2.2 | -6.5 | -4.4 |
| 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 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| 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) | 3.0 | 6.7 | 6.6 | 8.7 | 10.5 | 10.8 | 11.6 | 11.0 | 9.2 | 6.8 | 6.7 | 4.2 |
| Precipitation (mm) | 120 | 60 | 116 | 71 | 85 | 125 | 100 | 92 | 28 | 75 | 42 | 66 |
| Sunny days | 6 | 12 | 11 | 14 | 20 | 14 | 6 | 9 | 12 | 14 | 19 | 12 |
| Rainy days | 19 | 14 | 17 | 16 | 11 | 16 | 25 | 22 | 18 | 17 | 10 | 18 |
| Snow days | 6 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Sun Valley during the most sunny months:
The largest precipitation sum in Sun Valley is at