Average annual temperature is 7.1 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -30.9 °C
Number of sunny days: 201 days
Number of rainy days: 139 days
Number of snow days: 25 days
Look at detailed online map of Helong
* Weather data for Helong 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) | 4.7 | 8.9 | 20.0 | 23.5 | 28.1 | 32.8 | 32.1 | 30.6 | 28.5 | 21.2 | 18.9 | 10.3 |
| Average daytime temperature (°C) | -6.5 | -1.4 | 9.3 | 13.6 | 21.2 | 26.2 | 27.6 | 26.2 | 22.9 | 14.9 | 0.4 | -7.3 |
| Average temperature (°C) | -11.5 | -7.6 | 2.9 | 7.9 | 15.5 | 20.5 | 23.1 | 22.0 | 17.5 | 9.8 | -4.0 | -11.7 |
| Average night temperature (°C) | -17.0 | -14.0 | -2.2 | 2.4 | 9.8 | 15.5 | 19.5 | 18.2 | 12.8 | 5.2 | -8.0 | -16.7 |
| Absolute minimum temperature (°C) | -30.9 | -22.3 | -8.7 | -3.7 | 3.8 | 11.0 | 16.3 | 12.8 | 6.4 | -0.8 | -17.8 | -29.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.6 | 7.8 | 10.0 | 9.0 | 10.7 | 10.7 | 9.1 | 8.6 | 9.4 | 8.5 | 6.1 | 6.2 |
| Precipitation (mm) | 9 | 6 | 8 | 51 | 44 | 111 | 199 | 128 | 41 | 30 | 97 | 15 |
| Sunny days | 23 | 20 | 27 | 16 | 15 | 12 | 9 | 8 | 18 | 18 | 14 | 21 |
| Rainy days | 2 | 0 | 4 | 14 | 16 | 18 | 22 | 23 | 12 | 13 | 11 | 4 |
| Snow days | 6 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 6 |
The largest precipitation sum in Helong is at