Average annual temperature is 4.1 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -31.0 °C
Number of sunny days: 195 days
Number of rainy days: 108 days
Number of snow days: 62 days
Look at detailed online map of Beaverhead County
* Weather data for Beaverhead County 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) | 1.6 | 2.7 | 2.5 | 19.6 | 24.4 | 26.4 | 33.1 | 33.2 | 26.4 | 21.6 | 11.4 | 6.6 |
| Average daytime temperature (°C) | -4.9 | -3.6 | -2.6 | 4.4 | 17.4 | 19.1 | 28.6 | 25.7 | 20.4 | 12.4 | 5.3 | 0.3 |
| Average temperature (°C) | -10.0 | -9.4 | -7.5 | -1.2 | 11.0 | 13.1 | 20.6 | 18.3 | 12.9 | 5.6 | -0.5 | -4.6 |
| Average night temperature (°C) | -13.8 | -13.6 | -11.6 | -5.9 | 4.6 | 7.3 | 12.5 | 11.8 | 6.7 | 0.3 | -4.2 | -8.0 |
| Absolute minimum temperature (°C) | -31.0 | -28.3 | -19.7 | -15.6 | -1.8 | 0.3 | 9.0 | 6.0 | 0.4 | -16.7 | -11.6 | -17.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.2 | 14.1 | 12.5 | 11.0 | 9.6 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 5.8 | 7.9 | 8.4 | 11.1 | 12.7 | 12.1 | 13.7 | 11.4 | 10.2 | 8.3 | 7.3 | 6.2 |
| Precipitation (mm) | 10 | 18 | 38 | 39 | 62 | 37 | 13 | 39 | 54 | 29 | 3 | 6 |
| Sunny days | 20 | 16 | 10 | 17 | 7 | 7 | 18 | 17 | 19 | 19 | 23 | 22 |
| Rainy days | 1 | 0 | 1 | 5 | 24 | 23 | 13 | 14 | 11 | 9 | 6 | 1 |
| Snow days | 10 | 12 | 20 | 8 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 8 |
The best time to visit Beaverhead County during the most sunny months:
Months with the longest average daylight duration in Beaverhead County:
The largest precipitation sum in Beaverhead County is at