Average annual temperature is 3.2 °C
Absolute maximum temperature: 28.8 °C
Absolute minimum temperature: -31.0 °C
Number of sunny days: 231 days
Number of rainy days: 94 days
Number of snow days: 40 days
Look at detailed online map of Heyi
* Weather data for Heyi 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) | 1.1 | 1.7 | 14.1 | 19.1 | 23.2 | 28.8 | 27.4 | 28.7 | 25.8 | 16.8 | 13.4 | 1.5 |
| Average daytime temperature (°C) | -8.6 | -3.5 | 4.7 | 6.3 | 16.0 | 22.8 | 23.6 | 23.4 | 18.5 | 11.9 | -2.5 | -9.4 |
| Average temperature (°C) | -13.7 | -8.5 | -1.6 | 1.0 | 10.2 | 17.0 | 18.1 | 17.7 | 12.8 | 5.5 | -7.2 | -13.2 |
| Average night temperature (°C) | -18.3 | -13.7 | -6.7 | -4.0 | 4.7 | 10.8 | 13.3 | 12.2 | 8.0 | 0.4 | -11.6 | -17.3 |
| Absolute minimum temperature (°C) | -31.0 | -20.1 | -14.0 | -16.9 | -2.0 | 4.4 | 7.7 | 6.1 | -0.1 | -5.3 | -21.4 | -30.8 |
| 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 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.9 | 8.3 | 10.3 | 8.7 | 9.7 | 12.2 | 10.3 | 11.1 | 10.0 | 8.9 | 7.5 | 6.9 |
| Precipitation (mm) | 6 | 7 | 4 | 69 | 42 | 28 | 69 | 48 | 31 | 8 | 12 | 11 |
| Sunny days | 25 | 21 | 26 | 17 | 17 | 19 | 10 | 14 | 17 | 23 | 19 | 23 |
| Rainy days | 0 | 0 | 3 | 5 | 14 | 11 | 21 | 17 | 13 | 8 | 1 | 1 |
| Snow days | 6 | 7 | 2 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 7 |
The best time to visit Heyi during the most sunny months:
The largest precipitation sum in Heyi is at