Average annual temperature is 10.0 °C
Absolute maximum temperature: 28.2 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 126 days
Number of rainy days: 218 days
Number of snow days: 21 days
Look at detailed online map of Helvetia
* Weather data for Helvetia 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) | 16.6 | 17.9 | 18.8 | 25.4 | 24.1 | 25.6 | 28.2 | 26.0 | 26.8 | 23.8 | 19.5 | 15.1 |
| Average daytime temperature (°C) | 5.9 | 9.2 | 8.9 | 16.1 | 17.7 | 20.8 | 24.4 | 23.2 | 20.4 | 15.4 | 9.7 | 6.7 |
| Average temperature (°C) | 1.5 | 3.6 | 3.3 | 10.1 | 12.6 | 16.1 | 19.9 | 18.8 | 15.8 | 10.9 | 4.4 | 2.5 |
| Average night temperature (°C) | -1.7 | -0.8 | -1.3 | 5.1 | 8.2 | 11.9 | 16.4 | 15.3 | 12.4 | 7.3 | 0.3 | -0.5 |
| Absolute minimum temperature (°C) | -12.0 | -15.0 | -13.2 | -2.3 | -0.9 | 6.5 | 12.2 | 9.8 | 7.0 | 0.1 | -10.7 | -10.9 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 3.2 | 6.4 | 6.8 | 8.8 | 9.3 | 10.3 | 11.8 | 10.4 | 9.2 | 7.2 | 6.8 | 4.5 |
| Precipitation (mm) | 148 | 110 | 136 | 73 | 126 | 86 | 118 | 102 | 105 | 95 | 77 | 118 |
| Sunny days | 3 | 9 | 9 | 13 | 14 | 11 | 4 | 8 | 11 | 13 | 19 | 12 |
| Rainy days | 22 | 15 | 17 | 16 | 17 | 19 | 27 | 23 | 19 | 18 | 9 | 16 |
| Snow days | 6 | 4 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Helvetia during the most sunny months:
The largest precipitation sum in Helvetia is at