Average annual temperature is 10.3 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -20.0 °C
Number of sunny days: 295 days
Number of rainy days: 54 days
Number of snow days: 16 days
Look at detailed online map of Heli
* Weather data for Heli China is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 10.6 | 15.2 | 19.9 | 31.9 | 29.9 | 36.5 | 39.5 | 37.7 | 35.8 | 23.3 | 18.6 | 12.6 |
| Average daytime temperature (°C) | -2.0 | 5.2 | 14.1 | 16.2 | 23.6 | 30.6 | 32.6 | 30.6 | 26.4 | 18.5 | 7.2 | 0.8 |
| Average temperature (°C) | -8.9 | -1.4 | 6.4 | 9.9 | 17.1 | 24.2 | 25.8 | 24.1 | 19.6 | 11.4 | 0.7 | -5.3 |
| Average night temperature (°C) | -14.7 | -7.2 | -1.6 | 3.2 | 10.7 | 17.5 | 18.8 | 17.8 | 12.7 | 4.9 | -4.4 | -10.3 |
| Absolute minimum temperature (°C) | -20.0 | -11.9 | -4.8 | -4.2 | 5.2 | 9.8 | 12.2 | 14.0 | 4.6 | 0.2 | -9.9 | -16.9 |
| 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 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 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) | 8.5 | 8.2 | 10.2 | 8.3 | 8.2 | 9.4 | 10.3 | 8.8 | 9.5 | 8.1 | 8.1 | 7.5 |
| Precipitation (mm) | 0 | 3 | 0 | 8 | 11 | 14 | 26 | 11 | 9 | 9 | 4 | 4 |
| Sunny days | 28 | 24 | 30 | 18 | 22 | 24 | 23 | 23 | 25 | 24 | 27 | 27 |
| Rainy days | 0 | 1 | 0 | 8 | 9 | 6 | 8 | 8 | 5 | 7 | 2 | 0 |
| Snow days | 3 | 3 | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Heli is at