Average annual temperature is 13.1 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -16.5 °C
Number of sunny days: 192 days
Number of rainy days: 165 days
Number of snow days: 8 days
Look at detailed online map of Sillagwŏn
* Weather data for Sillagwŏn 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) | 11.4 | 12.6 | 23.6 | 25.4 | 33.1 | 34.1 | 33.3 | 34.3 | 29.7 | 21.7 | 24.4 | 15.9 |
| Average daytime temperature (°C) | 3.0 | 7.3 | 16.4 | 18.4 | 24.0 | 28.3 | 29.2 | 30.2 | 26.0 | 19.2 | 11.0 | 5.0 |
| Average temperature (°C) | -1.5 | 1.8 | 9.5 | 12.4 | 18.3 | 22.8 | 25.1 | 25.9 | 21.9 | 13.9 | 6.1 | 0.8 |
| Average night temperature (°C) | -5.5 | -2.4 | 3.4 | 7.2 | 13.1 | 18.3 | 22.0 | 22.6 | 18.4 | 9.3 | 1.5 | -3.0 |
| Absolute minimum temperature (°C) | -16.5 | -6.9 | -3.5 | 1.0 | 3.8 | 15.1 | 18.1 | 18.5 | 13.8 | 4.8 | -7.7 | -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 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 7.7 | 9.0 | 8.3 | 8.5 | 9.9 | 7.4 | 9.3 | 7.7 | 8.7 | 7.9 | 6.6 |
| Precipitation (mm) | 32 | 10 | 49 | 55 | 148 | 249 | 429 | 310 | 236 | 9 | 47 | 87 |
| Sunny days | 19 | 21 | 23 | 15 | 17 | 9 | 4 | 7 | 11 | 25 | 20 | 21 |
| Rainy days | 8 | 5 | 8 | 15 | 14 | 21 | 27 | 24 | 19 | 6 | 10 | 8 |
| Snow days | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Sillagwŏn is at