Average annual temperature is 4.7 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -16.8 °C
Number of sunny days: 219 days
Number of rainy days: 83 days
Number of snow days: 63 days
Look at detailed online map of Old Mammoth
* Weather data for Old Mammoth 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) | 5.6 | 6.7 | 4.4 | 16.0 | 20.0 | 25.5 | 32.3 | 26.8 | 22.0 | 21.9 | 18.1 | 12.3 |
| Average daytime temperature (°C) | -0.7 | -0.3 | -0.5 | 7.0 | 12.0 | 16.5 | 26.8 | 23.2 | 19.5 | 15.8 | 8.5 | 6.5 |
| Average temperature (°C) | -5.2 | -5.7 | -5.0 | 1.2 | 5.6 | 9.6 | 19.0 | 15.5 | 11.9 | 7.9 | 1.4 | -0.1 |
| Average night temperature (°C) | -9.0 | -10.2 | -8.5 | -3.7 | -0.5 | 3.4 | 11.0 | 8.7 | 5.5 | 1.8 | -3.9 | -4.7 |
| Absolute minimum temperature (°C) | -16.5 | -16.8 | -16.0 | -15.7 | -8.0 | -2.3 | 6.8 | 6.1 | 1.0 | -6.2 | -12.9 | -12.6 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 6.2 | 8.2 | 7.7 | 11.7 | 12.7 | 13.0 | 13.4 | 12.0 | 11.3 | 10.2 | 8.7 | 7.7 |
| Precipitation (mm) | 398 | 175 | 387 | 9 | 43 | 41 | 1 | 48 | 7 | 6 | 21 | 20 |
| Sunny days | 11 | 15 | 5 | 25 | 13 | 8 | 29 | 17 | 22 | 28 | 24 | 22 |
| Rainy days | 3 | 2 | 5 | 0 | 14 | 22 | 2 | 14 | 8 | 3 | 5 | 5 |
| Snow days | 17 | 11 | 21 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The best time to visit Old Mammoth during the most sunny months:
The largest precipitation sum in Old Mammoth is at