Average annual temperature is 12.0 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 182 days
Number of rainy days: 176 days
Number of snow days: 7 days
Look at detailed online map of Montana
* Weather data for Montana 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) | 17.3 | 16.7 | 15.6 | 31.2 | 29.3 | 35.2 | 32.6 | 30.3 | 34.5 | 27.3 | 19.1 | 14.8 |
| Average daytime temperature (°C) | 7.3 | 8.0 | 9.6 | 18.6 | 22.7 | 26.2 | 29.4 | 27.0 | 23.9 | 18.6 | 10.2 | 7.9 |
| Average temperature (°C) | 3.6 | 2.4 | 4.0 | 11.9 | 15.3 | 19.6 | 23.6 | 21.7 | 18.7 | 13.4 | 5.0 | 3.8 |
| Average night temperature (°C) | 0.1 | -2.0 | -0.8 | 6.6 | 8.3 | 13.9 | 18.8 | 17.2 | 14.5 | 9.1 | 0.8 | 0.5 |
| Absolute minimum temperature (°C) | -5.0 | -15.4 | -7.0 | -2.1 | 3.2 | 8.6 | 13.8 | 13.1 | 8.4 | 2.7 | -5.5 | -5.5 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 4.5 | 7.0 | 7.3 | 8.7 | 11.7 | 10.6 | 11.6 | 9.8 | 8.2 | 8.0 | 7.3 | 4.6 |
| Precipitation (mm) | 125 | 42 | 73 | 100 | 44 | 95 | 121 | 84 | 125 | 47 | 68 | 190 |
| Sunny days | 12 | 16 | 14 | 15 | 22 | 13 | 10 | 11 | 15 | 19 | 19 | 16 |
| Rainy days | 17 | 10 | 16 | 15 | 9 | 17 | 21 | 20 | 15 | 12 | 10 | 14 |
| Snow days | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Montana during the most sunny months:
The largest precipitation sum in Montana is at