Average annual temperature is 13.0 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -13.7 °C
Number of sunny days: 184 days
Number of rainy days: 168 days
Number of snow days: 13 days
Look at detailed online map of Ch’ilchŏl
* Weather data for Ch’ilchŏl 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) | 12.1 | 10.3 | 21.6 | 26.5 | 28.6 | 33.5 | 33.3 | 34.1 | 30.0 | 22.5 | 22.7 | 17.2 |
| Average daytime temperature (°C) | 2.6 | 5.1 | 13.1 | 17.5 | 23.0 | 26.0 | 28.8 | 29.5 | 25.9 | 19.3 | 10.9 | 5.3 |
| Average temperature (°C) | -1.1 | 1.0 | 7.4 | 12.1 | 17.5 | 21.4 | 25.2 | 25.7 | 22.3 | 15.1 | 7.4 | 1.7 |
| Average night temperature (°C) | -5.0 | -2.4 | 2.8 | 8.0 | 13.1 | 18.0 | 22.7 | 22.6 | 19.3 | 11.1 | 3.7 | -1.8 |
| Absolute minimum temperature (°C) | -13.7 | -5.5 | -2.3 | 2.1 | 6.1 | 15.0 | 20.3 | 18.7 | 14.7 | 5.3 | -3.8 | -10.8 |
| 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) | 7.3 | 8.4 | 9.4 | 7.9 | 8.7 | 9.6 | 7.8 | 8.9 | 7.5 | 8.3 | 6.7 | 4.7 |
| Precipitation (mm) | 30 | 1 | 12 | 67 | 122 | 159 | 397 | 220 | 168 | 40 | 101 | 82 |
| Sunny days | 21 | 26 | 24 | 18 | 19 | 12 | 8 | 5 | 7 | 19 | 13 | 12 |
| Rainy days | 6 | 1 | 7 | 12 | 12 | 18 | 23 | 26 | 23 | 12 | 16 | 12 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The largest precipitation sum in Ch’ilchŏl is at