Average annual temperature is 9.4 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: -24.9 °C
Number of sunny days: 200 days
Number of rainy days: 150 days
Number of snow days: 15 days
Look at detailed online map of Tonggoksŏng
* Weather data for Tonggoksŏng North Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 8.7 | 7.8 | 18.0 | 19.8 | 27.3 | 30.3 | 31.0 | 31.5 | 30.0 | 21.3 | 19.3 | 10.9 |
| Average daytime temperature (°C) | -3.3 | 2.6 | 9.4 | 14.3 | 20.2 | 24.4 | 27.3 | 27.5 | 25.1 | 17.1 | 4.8 | -2.0 |
| Average temperature (°C) | -8.3 | -2.2 | 3.8 | 9.1 | 15.6 | 19.8 | 23.5 | 23.8 | 20.3 | 12.4 | 0.7 | -6.4 |
| Average night temperature (°C) | -13.4 | -5.7 | -0.6 | 4.8 | 11.4 | 15.7 | 20.6 | 20.9 | 16.2 | 8.8 | -2.9 | -10.7 |
| Absolute minimum temperature (°C) | -22.4 | -10.6 | -7.3 | -1.8 | 6.9 | 10.8 | 18.3 | 16.0 | 9.5 | 3.5 | -10.3 | -24.9 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 6.7 | 7.5 | 9.0 | 8.7 | 9.1 | 10.1 | 8.4 | 7.6 | 9.9 | 7.9 | 6.3 | 6.1 |
| Precipitation (mm) | 25 | 4 | 8 | 85 | 119 | 135 | 218 | 379 | 23 | 70 | 99 | 50 |
| Sunny days | 21 | 24 | 23 | 16 | 17 | 10 | 9 | 5 | 19 | 19 | 18 | 19 |
| Rainy days | 2 | 2 | 8 | 14 | 14 | 20 | 22 | 26 | 11 | 12 | 11 | 8 |
| Snow days | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Tonggoksŏng is at