Average annual temperature is 3.5 °C
Absolute maximum temperature: 26.1 °C
Absolute minimum temperature: -22.7 °C
Number of sunny days: 163 days
Number of rainy days: 144 days
Number of snow days: 58 days
Look at detailed online map of Heilong
* Weather data for Heilong 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) | 8.1 | 6.4 | 11.8 | 18.9 | 20.7 | 21.9 | 26.1 | 24.3 | 21.6 | 12.7 | 12.2 | 5.4 |
| Average daytime temperature (°C) | -3.3 | -0.6 | 5.3 | 8.0 | 12.6 | 17.2 | 21.0 | 19.4 | 15.1 | 8.0 | 3.3 | -0.8 |
| Average temperature (°C) | -9.5 | -5.9 | -0.4 | 1.9 | 7.1 | 12.1 | 15.5 | 14.2 | 10.2 | 3.6 | -1.8 | -5.7 |
| Average night temperature (°C) | -15.3 | -11.8 | -5.9 | -3.9 | 2.0 | 7.1 | 10.0 | 9.3 | 6.0 | -0.7 | -6.5 | -10.5 |
| Absolute minimum temperature (°C) | -22.7 | -19.8 | -16.1 | -17.6 | -1.9 | 2.0 | 4.9 | 4.8 | 2.4 | -4.9 | -13.2 | -19.9 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 8.7 | 7.8 | 9.4 | 8.5 | 7.3 | 9.2 | 10.4 | 9.7 | 8.6 | 7.7 | 8.5 | 8.2 |
| Precipitation (mm) | 1 | 18 | 21 | 42 | 47 | 73 | 44 | 58 | 93 | 91 | 9 | 4 |
| Sunny days | 25 | 16 | 17 | 15 | 7 | 5 | 10 | 5 | 3 | 12 | 24 | 24 |
| Rainy days | 0 | 1 | 2 | 3 | 22 | 25 | 21 | 26 | 27 | 17 | 0 | 0 |
| Snow days | 6 | 11 | 12 | 12 | 2 | 0 | 0 | 0 | 0 | 2 | 6 | 7 |
The largest precipitation sum in Heilong is at