Average annual temperature is 12.0 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: -19.3 °C
Number of sunny days: 179 days
Number of rainy days: 169 days
Number of snow days: 17 days
Look at detailed online map of Chaehyŏn
* Weather data for Chaehyŏn 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) | 12.3 | 10.5 | 22.7 | 24.1 | 30.5 | 31.5 | 32.3 | 32.9 | 29.2 | 21.7 | 22.3 | 15.7 |
| Average daytime temperature (°C) | 0.7 | 5.9 | 14.1 | 17.1 | 22.8 | 26.2 | 28.5 | 29.4 | 25.2 | 17.7 | 9.0 | 3.2 |
| Average temperature (°C) | -3.9 | 0.7 | 8.1 | 11.5 | 17.5 | 21.4 | 24.6 | 25.2 | 21.2 | 13.0 | 4.4 | -0.4 |
| Average night temperature (°C) | -8.5 | -2.8 | 2.8 | 6.7 | 12.7 | 17.3 | 21.6 | 21.9 | 17.9 | 9.1 | 0.3 | -3.5 |
| Absolute minimum temperature (°C) | -19.3 | -7.8 | -5.6 | -1.0 | 3.9 | 13.5 | 18.5 | 17.4 | 12.3 | 2.7 | -9.5 | -16.0 |
| 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 | 9.7 |
| 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) | 7.0 | 8.0 | 9.3 | 7.8 | 9.0 | 9.8 | 7.3 | 8.9 | 7.3 | 8.2 | 7.3 | 5.8 |
| Precipitation (mm) | 34 | 4 | 24 | 99 | 124 | 240 | 678 | 348 | 205 | 18 | 95 | 92 |
| Sunny days | 18 | 22 | 22 | 13 | 19 | 7 | 6 | 7 | 9 | 23 | 17 | 16 |
| Rainy days | 6 | 4 | 9 | 17 | 12 | 23 | 25 | 24 | 21 | 8 | 11 | 9 |
| Snow days | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The largest precipitation sum in Chaehyŏn is at