Average annual temperature is 12.7 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 259 days
Number of rainy days: 83 days
Number of snow days: 23 days
Look at detailed online map of Castle Butte
* Weather data for Castle Butte 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) | 12.2 | 13.3 | 16.2 | 27.2 | 28.1 | 33.7 | 37.1 | 35.7 | 31.8 | 26.3 | 23.1 | 13.2 |
| Average daytime temperature (°C) | 3.6 | 6.9 | 9.4 | 19.6 | 24.9 | 28.4 | 34.7 | 30.7 | 27.5 | 22.0 | 13.4 | 7.7 |
| Average temperature (°C) | -1.5 | -0.1 | 3.4 | 12.0 | 17.6 | 21.4 | 28.3 | 24.3 | 20.6 | 15.1 | 7.5 | 2.5 |
| Average night temperature (°C) | -5.8 | -4.7 | -1.3 | 4.9 | 10.4 | 13.5 | 20.7 | 18.1 | 13.8 | 8.1 | 2.1 | -1.6 |
| Absolute minimum temperature (°C) | -15.3 | -15.3 | -10.1 | -5.8 | 5.1 | 9.4 | 18.4 | 15.3 | 9.6 | -2.7 | -5.2 | -6.8 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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) | 7.3 | 9.3 | 8.7 | 11.8 | 12.5 | 13.3 | 13.0 | 12.1 | 10.6 | 10.3 | 8.9 | 7.9 |
| Precipitation (mm) | 49 | 31 | 51 | 2 | 11 | 0 | 1 | 29 | 8 | 1 | 26 | 13 |
| Sunny days | 16 | 17 | 14 | 26 | 23 | 27 | 26 | 15 | 20 | 26 | 24 | 25 |
| Rainy days | 7 | 4 | 11 | 3 | 8 | 3 | 5 | 16 | 10 | 5 | 6 | 5 |
| Snow days | 8 | 7 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Castle Butte during the most sunny months:
The largest precipitation sum in Castle Butte is at