Average annual temperature is 12.9 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -17.9 °C
Number of sunny days: 184 days
Number of rainy days: 165 days
Number of snow days: 16 days
Look at detailed online map of Chŏmsil
* Weather data for Chŏmsil 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) | 12.5 | 10.7 | 24.6 | 26.1 | 31.3 | 33.0 | 33.4 | 34.1 | 31.1 | 21.6 | 23.3 | 16.4 |
| Average daytime temperature (°C) | 1.9 | 6.9 | 15.3 | 18.6 | 24.1 | 27.4 | 29.8 | 30.2 | 26.3 | 18.7 | 10.0 | 4.5 |
| Average temperature (°C) | -2.5 | 1.2 | 8.8 | 12.3 | 18.4 | 22.3 | 25.7 | 26.0 | 22.1 | 13.5 | 5.2 | 0.5 |
| Average night temperature (°C) | -6.8 | -3.0 | 2.9 | 6.7 | 12.8 | 17.4 | 22.3 | 22.2 | 18.4 | 9.0 | 0.6 | -3.0 |
| Absolute minimum temperature (°C) | -17.9 | -7.3 | -4.9 | 0.1 | 3.8 | 13.8 | 19.5 | 16.1 | 11.3 | 2.2 | -8.1 | -14.1 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 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) | 7.0 | 8.3 | 9.3 | 7.6 | 9.1 | 9.5 | 7.7 | 8.6 | 7.5 | 8.2 | 7.1 | 5.9 |
| Precipitation (mm) | 42 | 2 | 26 | 88 | 134 | 252 | 491 | 350 | 184 | 31 | 77 | 89 |
| Sunny days | 19 | 23 | 23 | 14 | 21 | 8 | 6 | 7 | 9 | 20 | 16 | 18 |
| Rainy days | 6 | 2 | 8 | 16 | 10 | 22 | 25 | 24 | 21 | 11 | 12 | 8 |
| Snow days | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The largest precipitation sum in Chŏmsil is at