Average annual temperature is 14.5 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 189 days
Number of rainy days: 172 days
Number of snow days: 4 days
Look at detailed online map of Ilmyŏngdang
* Weather data for Ilmyŏngdang 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) | 16.5 | 14.5 | 23.7 | 27.9 | 30.1 | 32.6 | 34.9 | 35.6 | 31.0 | 24.3 | 26.6 | 18.9 |
| Average daytime temperature (°C) | 6.8 | 10.4 | 17.2 | 19.2 | 23.0 | 27.9 | 29.6 | 31.0 | 27.2 | 21.6 | 14.6 | 9.0 |
| Average temperature (°C) | 1.4 | 4.3 | 10.6 | 13.5 | 17.9 | 22.5 | 25.4 | 26.7 | 22.8 | 15.6 | 8.7 | 3.7 |
| Average night temperature (°C) | -3.0 | -0.2 | 5.5 | 8.6 | 13.9 | 18.5 | 22.4 | 23.5 | 19.3 | 10.5 | 3.8 | -0.4 |
| Absolute minimum temperature (°C) | -12.1 | -5.5 | -3.0 | 1.9 | 7.1 | 14.5 | 18.7 | 21.6 | 15.5 | 5.5 | -4.2 | -8.8 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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) | 7.6 | 7.7 | 8.6 | 7.8 | 7.6 | 8.8 | 7.0 | 9.8 | 7.5 | 8.5 | 8.0 | 7.0 |
| Precipitation (mm) | 55 | 37 | 67 | 89 | 259 | 205 | 264 | 333 | 240 | 8 | 48 | 67 |
| Sunny days | 26 | 20 | 20 | 14 | 14 | 11 | 3 | 4 | 10 | 25 | 22 | 20 |
| Rainy days | 4 | 8 | 11 | 16 | 17 | 19 | 28 | 27 | 20 | 6 | 8 | 8 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Ilmyŏngdang is at