Average annual temperature is 12.7 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -17.4 °C
Number of sunny days: 189 days
Number of rainy days: 163 days
Number of snow days: 13 days
Look at detailed online map of Chŏŭm
* Weather data for Chŏŭm 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) | 10.9 | 13.0 | 22.6 | 24.2 | 30.7 | 32.4 | 32.9 | 33.8 | 28.9 | 21.6 | 24.4 | 16.8 |
| Average daytime temperature (°C) | 2.4 | 7.0 | 15.4 | 17.8 | 22.9 | 27.1 | 28.7 | 29.6 | 25.6 | 18.8 | 10.4 | 4.3 |
| Average temperature (°C) | -2.0 | 1.6 | 8.9 | 11.9 | 17.7 | 22.1 | 24.8 | 25.5 | 21.5 | 13.6 | 5.6 | 0.6 |
| Average night temperature (°C) | -5.8 | -2.1 | 3.3 | 6.6 | 12.6 | 17.6 | 21.6 | 22.2 | 18.1 | 9.3 | 1.2 | -2.8 |
| Absolute minimum temperature (°C) | -17.4 | -7.1 | -3.9 | 0.9 | 5.2 | 14.3 | 17.1 | 17.0 | 13.1 | 3.3 | -8.7 | -14.4 |
| 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 | 14.6 | 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 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.9 | 9.1 | 8.2 | 8.6 | 10.0 | 7.5 | 8.7 | 7.5 | 8.6 | 7.5 | 6.0 |
| Precipitation (mm) | 37 | 11 | 27 | 75 | 144 | 208 | 506 | 354 | 272 | 19 | 55 | 98 |
| Sunny days | 18 | 23 | 22 | 15 | 19 | 10 | 3 | 5 | 12 | 24 | 18 | 20 |
| Rainy days | 5 | 4 | 9 | 15 | 12 | 20 | 28 | 26 | 18 | 7 | 12 | 7 |
| Snow days | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Chŏŭm is at