Average annual temperature is 4.3 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: -30.3 °C
Number of sunny days: 230 days
Number of rainy days: 93 days
Number of snow days: 42 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) | 2.4 | 3.2 | 14.9 | 20.5 | 24.4 | 29.8 | 28.8 | 29.9 | 27.0 | 18.8 | 15.2 | 3.4 |
| Average daytime temperature (°C) | -7.5 | -2.7 | 5.7 | 7.1 | 16.9 | 23.8 | 24.7 | 24.6 | 19.5 | 12.9 | -1.5 | -8.4 |
| Average temperature (°C) | -12.5 | -7.5 | -0.5 | 2.1 | 11.3 | 18.1 | 19.3 | 18.9 | 13.9 | 6.8 | -6.3 | -12.3 |
| Average night temperature (°C) | -17.0 | -12.7 | -5.6 | -2.9 | 6.0 | 12.1 | 14.6 | 13.6 | 9.1 | 1.8 | -10.8 | -16.7 |
| Absolute minimum temperature (°C) | -30.2 | -19.3 | -13.3 | -15.0 | -1.1 | 5.0 | 9.7 | 7.5 | 1.8 | -4.0 | -20.9 | -30.3 |
| 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 | 8.2 | 10.3 | 8.6 | 9.5 | 12.1 | 10.2 | 11.0 | 10.0 | 8.9 | 7.4 | 6.9 |
| Precipitation (mm) | 7 | 8 | 5 | 68 | 46 | 37 | 78 | 35 | 36 | 12 | 13 | 10 |
| Sunny days | 25 | 21 | 26 | 15 | 18 | 16 | 10 | 13 | 18 | 25 | 20 | 23 |
| Rainy days | 0 | 1 | 1 | 5 | 13 | 14 | 21 | 18 | 12 | 5 | 1 | 2 |
| Snow days | 6 | 6 | 4 | 10 | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 6 |
The best time to visit Heyi during the most sunny months:
The largest precipitation sum in Heyi is at