Average annual temperature is 9.8 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: -20.6 °C
Number of sunny days: 171 days
Number of rainy days: 173 days
Number of snow days: 21 days
Look at detailed online map of Naejangjŏn
* Weather data for Naejangjŏn 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) | 11.7 | 11.0 | 21.1 | 20.3 | 25.6 | 28.4 | 31.5 | 31.3 | 26.0 | 18.8 | 20.2 | 12.9 |
| Average daytime temperature (°C) | -0.5 | 3.6 | 11.6 | 13.9 | 19.0 | 23.3 | 26.8 | 26.3 | 21.9 | 15.6 | 8.0 | 1.4 |
| Average temperature (°C) | -4.9 | -1.4 | 5.7 | 8.9 | 14.5 | 18.9 | 23.0 | 22.6 | 18.2 | 10.8 | 3.2 | -2.5 |
| Average night temperature (°C) | -8.6 | -5.0 | 0.8 | 4.5 | 10.3 | 15.1 | 20.1 | 19.8 | 15.4 | 7.0 | -1.0 | -5.5 |
| Absolute minimum temperature (°C) | -20.6 | -10.5 | -8.4 | -3.0 | 1.4 | 11.0 | 16.2 | 13.6 | 8.7 | 0.5 | -11.7 | -17.7 |
| 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 | 9.6 |
| 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) | 7.3 | 7.5 | 9.1 | 8.5 | 9.0 | 10.0 | 7.9 | 8.1 | 7.0 | 8.3 | 7.2 | 6.1 |
| Precipitation (mm) | 50 | 30 | 32 | 79 | 133 | 182 | 345 | 281 | 238 | 28 | 52 | 142 |
| Sunny days | 20 | 18 | 22 | 14 | 14 | 7 | 6 | 8 | 8 | 17 | 18 | 19 |
| Rainy days | 3 | 2 | 9 | 16 | 17 | 23 | 25 | 23 | 22 | 14 | 11 | 8 |
| Snow days | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The largest precipitation sum in Naejangjŏn is at