Average annual temperature is 12.7 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -8.1 °C
Number of sunny days: 181 days
Number of rainy days: 183 days
Number of snow days: 1 day
Look at detailed online map of Altapass
* Weather data for Altapass 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) | 17.5 | 22.8 | 25.1 | 24.4 | 26.0 | 29.8 | 32.2 | 32.0 | 31.1 | 24.9 | 22.5 | 15.7 |
| Average daytime temperature (°C) | 9.4 | 12.5 | 13.5 | 17.9 | 20.1 | 23.7 | 28.4 | 26.9 | 23.8 | 18.8 | 12.6 | 9.3 |
| Average temperature (°C) | 4.5 | 7.2 | 7.6 | 12.0 | 15.0 | 18.1 | 22.3 | 21.5 | 18.1 | 13.3 | 7.4 | 4.6 |
| Average night temperature (°C) | 0.9 | 2.9 | 2.5 | 6.4 | 10.6 | 13.1 | 16.7 | 16.9 | 13.4 | 8.5 | 2.6 | 0.8 |
| Absolute minimum temperature (°C) | -6.7 | -7.3 | -8.1 | -0.3 | 3.0 | 7.1 | 11.6 | 11.4 | 8.2 | 2.0 | -6.4 | -7.2 |
| 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 | 14.3 | 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) | 5.7 | 6.5 | 8.1 | 9.0 | 10.4 | 10.6 | 12.0 | 10.7 | 10.6 | 9.3 | 7.9 | 6.2 |
| Precipitation (mm) | 122 | 78 | 88 | 144 | 69 | 99 | 87 | 109 | 59 | 17 | 31 | 151 |
| Sunny days | 15 | 13 | 17 | 14 | 11 | 14 | 8 | 10 | 15 | 23 | 23 | 18 |
| Rainy days | 15 | 15 | 14 | 16 | 20 | 16 | 23 | 21 | 15 | 8 | 7 | 13 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Altapass during the most sunny months:
The largest precipitation sum in Altapass is at