Average annual temperature is 13.3 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -13.8 °C
Number of sunny days: 206 days
Number of rainy days: 154 days
Number of snow days: 5 days
Look at detailed online map of Chŏmma
* Weather data for Chŏmma 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) | 15.2 | 13.6 | 22.6 | 26.5 | 31.5 | 34.3 | 33.1 | 35.0 | 29.9 | 23.3 | 25.2 | 16.1 |
| Average daytime temperature (°C) | 5.3 | 8.5 | 16.4 | 18.2 | 22.6 | 28.1 | 28.6 | 30.1 | 26.3 | 20.1 | 12.7 | 6.9 |
| Average temperature (°C) | -0.2 | 2.3 | 9.1 | 12.2 | 17.1 | 22.3 | 24.6 | 25.8 | 22.0 | 14.0 | 7.1 | 1.9 |
| Average night temperature (°C) | -4.2 | -2.4 | 2.9 | 6.9 | 12.5 | 17.9 | 21.9 | 22.6 | 18.7 | 9.2 | 2.7 | -1.7 |
| Absolute minimum temperature (°C) | -13.8 | -9.0 | -3.2 | 0.8 | 5.5 | 15.2 | 18.1 | 18.9 | 14.4 | 5.3 | -4.9 | -9.7 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 7.5 | 8.8 | 8.2 | 7.9 | 9.4 | 6.9 | 9.6 | 7.3 | 8.8 | 7.8 | 6.7 |
| Precipitation (mm) | 35 | 25 | 52 | 93 | 134 | 172 | 290 | 316 | 168 | 8 | 71 | 75 |
| Sunny days | 26 | 19 | 23 | 16 | 18 | 13 | 4 | 7 | 12 | 26 | 21 | 21 |
| Rainy days | 4 | 8 | 8 | 14 | 13 | 17 | 27 | 24 | 18 | 5 | 9 | 7 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Chŏmma is at