Average annual temperature is 12.5 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -17.9 °C
Number of sunny days: 189 days
Number of rainy days: 167 days
Number of snow days: 9 days
Look at detailed online map of Chŏmmal
* Weather data for Chŏmmal 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 | 9.9 | 23.2 | 26.5 | 27.8 | 33.3 | 32.9 | 33.8 | 30.6 | 22.3 | 23.1 | 15.9 |
| Average daytime temperature (°C) | 2.1 | 5.9 | 13.8 | 17.8 | 22.8 | 25.5 | 28.8 | 29.4 | 26.1 | 19.3 | 10.0 | 4.5 |
| Average temperature (°C) | -2.9 | 0.4 | 7.4 | 12.2 | 17.4 | 21.4 | 25.3 | 25.7 | 22.2 | 14.3 | 5.3 | 0.3 |
| Average night temperature (°C) | -7.4 | -3.9 | 1.9 | 7.7 | 12.9 | 17.9 | 22.6 | 22.6 | 18.9 | 9.9 | 1.1 | -3.6 |
| Absolute minimum temperature (°C) | -17.9 | -6.9 | -3.5 | 1.3 | 4.8 | 14.0 | 20.2 | 17.6 | 13.0 | 4.5 | -7.2 | -14.2 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 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 | 8.5 | 9.3 | 7.5 | 9.0 | 9.4 | 7.7 | 8.7 | 7.6 | 8.2 | 7.2 | 6.3 |
| Precipitation (mm) | 39 | 2 | 23 | 94 | 182 | 214 | 370 | 331 | 146 | 58 | 95 | 75 |
| Sunny days | 19 | 25 | 23 | 16 | 21 | 9 | 6 | 8 | 9 | 20 | 16 | 17 |
| Rainy days | 8 | 2 | 8 | 14 | 10 | 21 | 25 | 23 | 21 | 11 | 13 | 11 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The largest precipitation sum in Chŏmmal is at