Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -16.5 °C
Number of sunny days: 180 days
Number of rainy days: 173 days
Number of snow days: 12 days
Look at detailed online map of Jŏnchon
* Weather data for Jŏnchon 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 | 10.4 | 23.5 | 26.3 | 29.2 | 32.7 | 33.8 | 34.3 | 31.2 | 22.5 | 23.1 | 16.2 |
| Average daytime temperature (°C) | 2.2 | 5.4 | 13.6 | 17.8 | 23.2 | 25.7 | 29.0 | 29.6 | 26.3 | 19.2 | 10.2 | 4.9 |
| Average temperature (°C) | -2.1 | 0.8 | 7.6 | 12.4 | 17.7 | 21.5 | 25.3 | 25.8 | 22.2 | 14.0 | 5.6 | 0.6 |
| Average night temperature (°C) | -6.4 | -3.1 | 2.7 | 8.1 | 13.2 | 18.1 | 22.5 | 22.6 | 18.7 | 9.3 | 1.1 | -3.3 |
| Absolute minimum temperature (°C) | -16.5 | -6.2 | -3.0 | 2.9 | 5.7 | 14.5 | 20.0 | 17.4 | 12.4 | 3.4 | -7.0 | -13.7 |
| 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 | 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) | 7.1 | 8.4 | 9.5 | 7.8 | 8.8 | 9.4 | 7.7 | 8.7 | 7.4 | 8.0 | 7.1 | 5.9 |
| Precipitation (mm) | 33 | 1 | 9 | 109 | 144 | 198 | 416 | 265 | 196 | 34 | 128 | 95 |
| Sunny days | 18 | 26 | 24 | 18 | 17 | 12 | 3 | 6 | 9 | 17 | 15 | 15 |
| Rainy days | 8 | 2 | 7 | 12 | 14 | 18 | 28 | 25 | 21 | 14 | 14 | 10 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The largest precipitation sum in Jŏnchon is at