Average annual temperature is 9.9 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -19.4 °C
Number of sunny days: 275 days
Number of rainy days: 69 days
Number of snow days: 21 days
Look at detailed online map of Heman
* Weather data for Heman 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) | 11.3 | 15.6 | 19.9 | 31.2 | 29.5 | 36.1 | 38.7 | 38.2 | 36.7 | 23.6 | 19.0 | 11.8 |
| Average daytime temperature (°C) | -0.9 | 6.3 | 14.5 | 16.3 | 23.3 | 30.2 | 31.5 | 30.6 | 26.9 | 18.6 | 8.3 | 2.3 |
| Average temperature (°C) | -8.2 | -1.3 | 5.8 | 9.1 | 16.6 | 23.0 | 24.3 | 23.7 | 19.2 | 10.6 | 0.8 | -4.9 |
| Average night temperature (°C) | -14.4 | -7.2 | -2.6 | 1.9 | 9.5 | 15.5 | 16.9 | 16.9 | 11.7 | 3.7 | -4.8 | -9.9 |
| Absolute minimum temperature (°C) | -19.4 | -10.1 | -6.0 | -5.6 | 3.6 | 10.0 | 11.0 | 12.4 | 5.3 | -0.7 | -9.5 | -16.5 |
| 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 | 14.8 | 14.6 | 13.7 | 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) | 8.3 | 8.1 | 9.9 | 8.0 | 8.1 | 9.4 | 10.1 | 8.7 | 9.3 | 8.3 | 8.2 | 7.6 |
| Precipitation (mm) | 0 | 6 | 0 | 16 | 12 | 18 | 40 | 19 | 11 | 18 | 8 | 4 |
| Sunny days | 27 | 18 | 27 | 15 | 19 | 21 | 24 | 25 | 24 | 22 | 26 | 27 |
| Rainy days | 0 | 0 | 2 | 13 | 12 | 9 | 7 | 6 | 6 | 9 | 3 | 2 |
| Snow days | 4 | 10 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Heman is at