Average annual temperature is 7.6 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -26.4 °C
Number of sunny days: 200 days
Number of rainy days: 120 days
Number of snow days: 45 days
Look at detailed online map of Helena Valley West Central
* Weather data for Helena Valley West Central 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) | 8.0 | 11.6 | 12.1 | 24.4 | 29.6 | 30.6 | 35.5 | 36.5 | 30.5 | 22.6 | 16.4 | 14.7 |
| Average daytime temperature (°C) | 1.3 | 3.4 | 4.0 | 12.1 | 22.5 | 22.7 | 30.5 | 29.4 | 22.8 | 13.3 | 7.9 | 4.2 |
| Average temperature (°C) | -3.8 | -3.1 | -2.4 | 4.3 | 14.9 | 16.0 | 22.0 | 20.7 | 14.8 | 6.4 | 1.5 | -0.6 |
| Average night temperature (°C) | -7.8 | -7.8 | -6.8 | -1.9 | 8.0 | 9.7 | 13.1 | 13.5 | 8.0 | 1.5 | -2.9 | -4.0 |
| Absolute minimum temperature (°C) | -26.4 | -26.3 | -13.5 | -11.6 | 1.5 | 2.0 | 8.8 | 10.2 | 1.8 | -12.1 | -8.3 | -10.1 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.0 | 15.8 | 15.4 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 5.3 | 6.3 | 8.0 | 9.9 | 11.7 | 11.6 | 13.9 | 11.1 | 10.0 | 7.5 | 6.7 | 5.5 |
| Precipitation (mm) | 20 | 12 | 33 | 46 | 38 | 51 | 3 | 51 | 57 | 32 | 11 | 7 |
| Sunny days | 18 | 15 | 14 | 12 | 10 | 7 | 23 | 21 | 16 | 21 | 21 | 22 |
| Rainy days | 4 | 3 | 2 | 11 | 21 | 23 | 8 | 10 | 14 | 9 | 9 | 6 |
| Snow days | 9 | 10 | 15 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 |
The best time to visit Helena Valley West Central during the most sunny months:
Months with the longest average daylight duration in Helena Valley West Central:
The largest precipitation sum in Helena Valley West Central is at