Average annual temperature is 6.9 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: -32.5 °C
Number of sunny days: 225 days
Number of rainy days: 90 days
Number of snow days: 50 days
Look at detailed online map of Fort Union (historical)
* Weather data for Fort Union (historical) 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) | 4.1 | 7.9 | 4.7 | 28.1 | 29.9 | 31.4 | 37.0 | 35.4 | 34.0 | 21.7 | 12.8 | 12.2 |
| Average daytime temperature (°C) | -2.9 | -1.0 | -2.9 | 10.4 | 22.8 | 26.7 | 28.5 | 28.7 | 24.4 | 11.9 | 5.7 | 3.9 |
| Average temperature (°C) | -7.7 | -7.0 | -8.2 | 3.3 | 15.3 | 20.2 | 21.6 | 21.6 | 17.7 | 6.5 | 0.4 | -1.5 |
| Average night temperature (°C) | -11.3 | -12.2 | -12.7 | -2.2 | 8.4 | 14.4 | 15.2 | 15.8 | 12.0 | 2.5 | -3.5 | -5.0 |
| Absolute minimum temperature (°C) | -27.3 | -32.5 | -23.2 | -16.6 | -0.8 | 10.4 | 7.3 | 11.5 | 6.3 | -19.9 | -13.3 | -10.0 |
| 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) | 4.0 | 7.3 | 6.8 | 9.2 | 11.3 | 12.7 | 13.0 | 11.4 | 10.2 | 6.7 | 7.0 | 5.9 |
| Precipitation (mm) | 9 | 12 | 27 | 28 | 63 | 80 | 12 | 34 | 34 | 56 | 8 | 14 |
| Sunny days | 21 | 16 | 17 | 15 | 17 | 16 | 21 | 19 | 18 | 18 | 21 | 26 |
| Rainy days | 2 | 3 | 0 | 8 | 14 | 14 | 10 | 12 | 12 | 9 | 3 | 3 |
| Snow days | 8 | 9 | 14 | 7 | 0 | 0 | 0 | 0 | 0 | 4 | 6 | 2 |
The best time to visit Fort Union (historical) during the most sunny months:
Months with the longest average daylight duration in Fort Union (historical):
The largest precipitation sum in Fort Union (historical) is at