Average annual temperature is 6.3 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -28.0 °C
Number of sunny days: 227 days
Number of rainy days: 93 days
Number of snow days: 45 days
Look at detailed online map of Unorganized Territory of West Mountrail
* Weather data for Unorganized Territory of West Mountrail 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) | 2.9 | 4.7 | 2.7 | 21.9 | 27.4 | 30.9 | 35.0 | 34.5 | 32.1 | 24.9 | 12.1 | 9.9 |
| Average daytime temperature (°C) | -4.5 | -3.1 | -4.8 | 6.7 | 21.1 | 26.1 | 27.0 | 27.4 | 22.8 | 11.1 | 4.7 | 2.8 |
| Average temperature (°C) | -8.5 | -8.2 | -9.2 | 1.2 | 14.2 | 20.2 | 20.9 | 21.3 | 17.4 | 6.8 | 0.3 | -1.9 |
| Average night temperature (°C) | -11.5 | -12.7 | -12.6 | -3.1 | 7.8 | 14.6 | 16.0 | 16.6 | 13.0 | 3.4 | -3.0 | -5.2 |
| Absolute minimum temperature (°C) | -28.0 | -26.8 | -21.7 | -15.4 | -2.0 | 9.5 | 9.8 | 13.7 | 9.0 | -13.3 | -11.6 | -10.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.8 | 7.1 | 7.6 | 9.1 | 11.4 | 13.0 | 13.1 | 11.0 | 9.9 | 6.9 | 6.3 | 6.0 |
| Precipitation (mm) | 8 | 11 | 29 | 23 | 74 | 28 | 47 | 28 | 32 | 58 | 6 | 18 |
| Sunny days | 22 | 17 | 17 | 18 | 16 | 18 | 17 | 19 | 19 | 15 | 21 | 28 |
| Rainy days | 3 | 1 | 0 | 8 | 15 | 12 | 14 | 12 | 11 | 13 | 3 | 1 |
| Snow days | 6 | 10 | 14 | 4 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 2 |
The best time to visit Unorganized Territory of West Mountrail during the most sunny months:
Months with the longest average daylight duration in Unorganized Territory of West Mountrail:
The largest precipitation sum in Unorganized Territory of West Mountrail is at