Average annual temperature is 14.2 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 178 days
Number of rainy days: 175 days
Number of snow days: 12 days
Look at detailed online map of Kalchŏn
* Weather data for Kalchŏn 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) | 15.9 | 12.7 | 25.5 | 27.3 | 31.4 | 35.8 | 33.2 | 35.0 | 31.2 | 22.9 | 24.8 | 18.6 |
| Average daytime temperature (°C) | 5.0 | 8.4 | 17.2 | 19.8 | 24.4 | 28.6 | 29.5 | 30.8 | 27.2 | 20.3 | 12.6 | 7.2 |
| Average temperature (°C) | 0.2 | 2.4 | 9.8 | 13.6 | 18.7 | 22.9 | 25.9 | 26.7 | 22.9 | 15.0 | 8.1 | 3.4 |
| Average night temperature (°C) | -4.0 | -2.2 | 3.7 | 8.2 | 13.9 | 18.6 | 23.1 | 23.3 | 19.4 | 10.4 | 3.7 | -0.3 |
| Absolute minimum temperature (°C) | -13.3 | -6.4 | -3.7 | 0.4 | 5.1 | 14.7 | 21.3 | 17.9 | 14.3 | 5.6 | -5.0 | -10.8 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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) | 7.2 | 7.3 | 9.0 | 7.5 | 8.3 | 9.6 | 7.0 | 9.3 | 7.5 | 8.6 | 7.0 | 5.7 |
| Precipitation (mm) | 57 | 10 | 25 | 87 | 182 | 238 | 644 | 375 | 244 | 21 | 81 | 139 |
| Sunny days | 17 | 23 | 21 | 15 | 14 | 13 | 2 | 5 | 12 | 24 | 17 | 15 |
| Rainy days | 10 | 4 | 10 | 15 | 17 | 17 | 29 | 26 | 18 | 7 | 12 | 10 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The largest precipitation sum in Kalchŏn is at