Average annual temperature is 15.9 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: -9.4 °C
Number of sunny days: 214 days
Number of rainy days: 150 days
Number of snow days: 1 day
Look at detailed online map of Altamont
* Weather data for Altamont 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) | 20.1 | 20.5 | 25.6 | 27.2 | 31.2 | 39.6 | 37.8 | 40.8 | 35.0 | 31.3 | 24.9 | 17.8 |
| Average daytime temperature (°C) | 10.0 | 12.2 | 14.5 | 21.2 | 26.5 | 31.5 | 33.6 | 33.9 | 29.8 | 21.5 | 15.3 | 11.3 |
| Average temperature (°C) | 4.3 | 5.5 | 8.6 | 14.5 | 20.2 | 25.1 | 27.5 | 27.8 | 23.5 | 16.3 | 9.8 | 6.5 |
| Average night temperature (°C) | 0.3 | 0.8 | 4.0 | 8.8 | 14.9 | 19.7 | 22.3 | 22.7 | 18.4 | 12.3 | 5.7 | 3.1 |
| Absolute minimum temperature (°C) | -9.4 | -7.9 | -6.5 | 2.2 | 6.3 | 15.5 | 17.6 | 15.8 | 13.6 | -1.2 | -4.8 | -2.2 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 6.0 | 7.2 | 7.4 | 9.9 | 10.1 | 12.3 | 11.2 | 11.7 | 10.4 | 7.8 | 7.5 | 5.5 |
| Precipitation (mm) | 56 | 79 | 100 | 32 | 105 | 44 | 116 | 62 | 88 | 89 | 39 | 85 |
| Sunny days | 21 | 15 | 13 | 18 | 13 | 17 | 14 | 24 | 17 | 19 | 23 | 20 |
| Rainy days | 9 | 13 | 18 | 12 | 18 | 13 | 17 | 7 | 13 | 12 | 7 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Altamont during the most sunny months:
The largest precipitation sum in Altamont is at