Average annual temperature is 13.2 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -16.0 °C
Number of sunny days: 200 days
Number of rainy days: 158 days
Number of snow days: 7 days
Look at detailed online map of Tŏngnyŏng
* Weather data for Tŏngnyŏng South 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) | 13.1 | 10.8 | 25.5 | 27.0 | 31.9 | 35.0 | 33.6 | 34.3 | 30.7 | 22.5 | 24.0 | 17.8 |
| Average daytime temperature (°C) | 3.0 | 6.7 | 15.5 | 19.1 | 24.8 | 28.0 | 29.8 | 30.5 | 26.6 | 19.6 | 11.0 | 5.4 |
| Average temperature (°C) | -1.8 | 1.1 | 8.4 | 13.0 | 18.6 | 22.6 | 25.7 | 26.2 | 22.4 | 14.3 | 6.2 | 1.3 |
| Average night temperature (°C) | -6.4 | -3.3 | 2.7 | 7.8 | 13.4 | 18.3 | 22.7 | 22.7 | 19.1 | 9.6 | 1.6 | -2.4 |
| Absolute minimum temperature (°C) | -16.0 | -6.4 | -3.6 | 1.6 | 5.4 | 14.4 | 19.9 | 16.8 | 12.8 | 4.4 | -7.0 | -13.3 |
| 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 | 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 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 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) | 7.1 | 8.0 | 9.3 | 7.7 | 8.5 | 9.7 | 7.4 | 8.5 | 7.2 | 8.3 | 7.0 | 5.7 |
| Precipitation (mm) | 30 | 2 | 19 | 77 | 130 | 107 | 450 | 277 | 213 | 24 | 83 | 83 |
| Sunny days | 19 | 26 | 25 | 14 | 21 | 15 | 6 | 9 | 11 | 22 | 16 | 16 |
| Rainy days | 9 | 2 | 6 | 16 | 10 | 15 | 25 | 22 | 19 | 9 | 14 | 11 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Tŏngnyŏng is at