Average annual temperature is 11.0 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -21.2 °C
Number of sunny days: 179 days
Number of rainy days: 174 days
Number of snow days: 12 days
Look at detailed online map of Jangsuwon
* Weather data for Jangsuwon 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) | 10.3 | 10.9 | 21.5 | 24.2 | 29.1 | 32.8 | 32.1 | 32.8 | 29.2 | 20.9 | 21.5 | 14.0 |
| Average daytime temperature (°C) | 0.2 | 5.1 | 13.3 | 16.3 | 22.0 | 25.8 | 28.4 | 28.5 | 24.7 | 17.1 | 8.1 | 2.2 |
| Average temperature (°C) | -4.4 | -0.6 | 6.7 | 10.4 | 16.3 | 20.6 | 24.1 | 24.3 | 20.3 | 11.7 | 3.2 | -1.9 |
| Average night temperature (°C) | -8.7 | -4.4 | 0.8 | 5.0 | 10.8 | 15.9 | 20.6 | 20.7 | 16.6 | 7.0 | -1.2 | -5.4 |
| Absolute minimum temperature (°C) | -21.2 | -8.9 | -6.8 | -2.3 | 1.7 | 11.6 | 16.4 | 13.9 | 9.8 | 0.6 | -9.9 | -16.5 |
| 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 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 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 | 8.2 | 9.1 | 7.5 | 9.4 | 9.9 | 8.1 | 8.4 | 7.4 | 7.9 | 7.0 | 6.0 |
| Precipitation (mm) | 48 | 1 | 20 | 118 | 167 | 253 | 349 | 357 | 145 | 26 | 120 | 74 |
| Sunny days | 19 | 24 | 22 | 13 | 19 | 7 | 5 | 6 | 9 | 19 | 17 | 19 |
| Rainy days | 5 | 2 | 9 | 17 | 12 | 23 | 26 | 25 | 21 | 12 | 13 | 9 |
| Snow days | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Jangsuwon is at