Average annual temperature is 10.0 °C
Absolute maximum temperature: 31.4 °C
Absolute minimum temperature: -19.5 °C
Number of sunny days: 176 days
Number of rainy days: 167 days
Number of snow days: 22 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) | 10.8 | 10.3 | 20.7 | 22.6 | 26.7 | 28.2 | 30.5 | 31.4 | 27.1 | 19.7 | 21.0 | 13.4 |
| Average daytime temperature (°C) | 0.1 | 4.4 | 12.2 | 14.5 | 19.6 | 24.0 | 26.8 | 27.2 | 23.2 | 16.2 | 7.9 | 1.7 |
| Average temperature (°C) | -4.5 | -0.9 | 5.7 | 9.0 | 14.6 | 19.1 | 22.8 | 23.0 | 18.9 | 10.8 | 3.1 | -2.3 |
| Average night temperature (°C) | -8.7 | -4.5 | -0.1 | 4.0 | 9.3 | 14.5 | 19.3 | 19.6 | 15.4 | 6.0 | -1.1 | -5.6 |
| Absolute minimum temperature (°C) | -19.5 | -8.0 | -7.8 | -3.7 | 1.8 | 9.9 | 14.7 | 13.1 | 8.9 | -0.2 | -10.9 | -17.3 |
| 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 | 9.6 |
| 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 | 7.8 | 9.2 | 8.2 | 9.1 | 10.0 | 7.8 | 8.7 | 7.2 | 8.5 | 7.1 | 6.0 |
| Precipitation (mm) | 37 | 6 | 27 | 97 | 115 | 163 | 431 | 267 | 194 | 16 | 63 | 94 |
| Sunny days | 20 | 20 | 21 | 13 | 16 | 9 | 7 | 10 | 9 | 17 | 17 | 17 |
| Rainy days | 3 | 1 | 10 | 17 | 15 | 21 | 24 | 21 | 21 | 13 | 11 | 10 |
| Snow days | 8 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The largest precipitation sum in Kalchŏn is at