Average annual temperature is 11.5 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -19.0 °C
Number of sunny days: 190 days
Number of rainy days: 162 days
Number of snow days: 13 days
Look at detailed online map of Jangsumul
* Weather data for Jangsumul 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) | 9.6 | 10.8 | 21.9 | 24.7 | 28.1 | 33.9 | 32.8 | 33.8 | 29.8 | 21.3 | 21.8 | 14.4 |
| Average daytime temperature (°C) | 1.0 | 5.8 | 14.0 | 16.6 | 22.3 | 26.5 | 29.1 | 28.9 | 25.4 | 17.9 | 8.8 | 3.0 |
| Average temperature (°C) | -3.5 | 0.0 | 6.7 | 10.6 | 16.4 | 21.1 | 25.0 | 24.8 | 20.8 | 12.2 | 4.0 | -1.3 |
| Average night temperature (°C) | -7.9 | -3.9 | 0.1 | 5.4 | 10.7 | 16.2 | 21.7 | 21.5 | 17.3 | 7.7 | 0.0 | -4.9 |
| Absolute minimum temperature (°C) | -19.0 | -7.2 | -5.2 | -1.5 | 2.7 | 11.1 | 19.0 | 16.0 | 11.1 | 2.5 | -8.2 | -15.2 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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 | 8.3 | 9.5 | 7.3 | 9.3 | 9.8 | 8.1 | 7.9 | 7.6 | 8.1 | 6.7 | 5.9 |
| Precipitation (mm) | 40 | 2 | 20 | 114 | 124 | 198 | 334 | 312 | 102 | 21 | 82 | 80 |
| Sunny days | 20 | 23 | 23 | 14 | 20 | 8 | 6 | 7 | 11 | 21 | 17 | 20 |
| Rainy days | 4 | 1 | 8 | 16 | 11 | 22 | 25 | 24 | 19 | 10 | 12 | 10 |
| Snow days | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The largest precipitation sum in Jangsumul is at