Average annual temperature is 5.5 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -32.2 °C
Number of sunny days: 173 days
Number of rainy days: 131 days
Number of snow days: 61 days
Look at detailed online map of Helena West Side
* Weather data for Helena West Side 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) | 7.4 | 7.9 | 8.0 | 21.0 | 26.6 | 27.0 | 32.5 | 33.8 | 26.9 | 21.0 | 14.0 | 12.7 |
| Average daytime temperature (°C) | -0.5 | 1.1 | 0.7 | 8.6 | 19.1 | 19.5 | 27.3 | 26.4 | 19.9 | 11.2 | 6.3 | 3.8 |
| Average temperature (°C) | -5.3 | -5.4 | -5.1 | 1.4 | 12.1 | 13.3 | 19.3 | 18.3 | 12.5 | 4.6 | 0.6 | -1.3 |
| Average night temperature (°C) | -9.1 | -10.7 | -9.4 | -4.5 | 5.8 | 7.1 | 10.8 | 11.7 | 6.3 | 0.1 | -3.2 | -4.7 |
| Absolute minimum temperature (°C) | -30.0 | -32.2 | -17.7 | -13.4 | -0.2 | -0.6 | 4.6 | 7.4 | 0.0 | -16.4 | -10.3 | -11.4 |
| 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) | 9.1 | 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 | 6.7 | 8.0 | 10.0 | 11.6 | 11.6 | 13.9 | 11.2 | 10.1 | 7.4 | 6.7 | 5.7 |
| Precipitation (mm) | 33 | 19 | 50 | 81 | 86 | 79 | 9 | 53 | 84 | 42 | 17 | 8 |
| Sunny days | 14 | 12 | 12 | 13 | 8 | 5 | 18 | 19 | 16 | 15 | 21 | 20 |
| Rainy days | 2 | 5 | 1 | 9 | 23 | 25 | 13 | 12 | 14 | 14 | 8 | 5 |
| Snow days | 15 | 11 | 18 | 8 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 6 |
The best time to visit Helena West Side during the most sunny months:
Months with the longest average daylight duration in Helena West Side:
The largest precipitation sum in Helena West Side is at