Average annual temperature is 10.5 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: -24.0 °C
Number of sunny days: 223 days
Number of rainy days: 120 days
Number of snow days: 22 days
Look at detailed online map of New Helena
* Weather data for New Helena 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) | 5.0 | 12.3 | 17.6 | 28.8 | 28.1 | 32.2 | 37.2 | 38.8 | 37.1 | 29.4 | 18.3 | 17.2 |
| Average daytime temperature (°C) | -1.9 | 3.3 | 7.7 | 16.7 | 23.1 | 27.6 | 29.9 | 30.9 | 27.1 | 16.6 | 11.2 | 6.1 |
| Average temperature (°C) | -5.0 | -3.0 | 0.4 | 9.3 | 16.9 | 21.6 | 23.6 | 24.5 | 20.5 | 10.8 | 5.2 | 0.8 |
| Average night temperature (°C) | -8.2 | -7.3 | -4.5 | 3.1 | 11.3 | 16.1 | 18.0 | 19.1 | 15.0 | 6.1 | 0.9 | -2.9 |
| Absolute minimum temperature (°C) | -20.9 | -24.0 | -11.7 | -6.5 | 0.6 | 10.4 | 12.9 | 13.8 | 10.3 | -9.4 | -7.7 | -7.4 |
| 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 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.5 | 7.9 | 8.9 | 10.7 | 10.8 | 12.4 | 12.3 | 11.9 | 10.3 | 7.6 | 7.3 | 5.2 |
| Precipitation (mm) | 91 | 10 | 41 | 9 | 115 | 74 | 110 | 47 | 35 | 44 | 24 | 39 |
| Sunny days | 20 | 21 | 23 | 22 | 9 | 13 | 9 | 20 | 22 | 19 | 23 | 22 |
| Rainy days | 3 | 2 | 4 | 7 | 22 | 17 | 22 | 11 | 8 | 10 | 6 | 8 |
| Snow days | 8 | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 |
The best time to visit New Helena during the most sunny months:
The largest precipitation sum in New Helena is at