Average annual temperature is 15.9 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: -8.8 °C
Number of sunny days: 240 days
Number of rainy days: 120 days
Number of snow days: 5 days
Look at detailed online map of Heili
* Weather data for Heili 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) | 14.4 | 19.1 | 28.5 | 28.1 | 35.4 | 37.2 | 40.0 | 35.4 | 31.7 | 27.6 | 29.0 | 21.9 |
| Average daytime temperature (°C) | 7.4 | 10.2 | 19.1 | 21.1 | 25.9 | 31.5 | 33.6 | 31.0 | 26.9 | 22.9 | 14.5 | 6.6 |
| Average temperature (°C) | 2.0 | 4.9 | 13.0 | 15.8 | 21.0 | 26.3 | 28.7 | 26.6 | 22.8 | 17.8 | 9.5 | 1.6 |
| Average night temperature (°C) | -2.9 | 0.1 | 7.1 | 11.0 | 16.6 | 21.4 | 24.4 | 22.8 | 19.1 | 13.2 | 4.6 | -2.7 |
| Absolute minimum temperature (°C) | -7.4 | -3.5 | 1.2 | 4.9 | 11.0 | 14.5 | 21.8 | 17.3 | 13.1 | 7.1 | -3.1 | -8.8 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 6.7 | 8.4 | 8.0 | 7.0 | 8.4 | 9.3 | 9.5 | 7.5 | 7.4 | 6.7 | 7.0 |
| Precipitation (mm) | 9 | 24 | 12 | 94 | 147 | 43 | 233 | 118 | 95 | 20 | 26 | 43 |
| Sunny days | 29 | 19 | 28 | 19 | 11 | 18 | 14 | 17 | 15 | 23 | 24 | 23 |
| Rainy days | 1 | 8 | 3 | 11 | 20 | 12 | 17 | 14 | 15 | 8 | 5 | 6 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Heili is at