Average annual temperature is 13.1 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -15.9 °C
Number of sunny days: 179 days
Number of rainy days: 178 days
Number of snow days: 8 days
Look at detailed online map of Ŭllyŏng
* Weather data for Ŭllyŏng 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) | 14.7 | 12.7 | 21.2 | 25.0 | 28.7 | 30.8 | 33.0 | 33.6 | 28.0 | 21.0 | 23.2 | 16.6 |
| Average daytime temperature (°C) | 3.7 | 7.4 | 14.8 | 17.0 | 20.9 | 25.7 | 28.0 | 29.0 | 24.9 | 18.7 | 11.4 | 6.0 |
| Average temperature (°C) | -0.4 | 2.6 | 9.3 | 12.1 | 16.6 | 21.2 | 24.6 | 25.3 | 21.5 | 14.5 | 7.1 | 2.3 |
| Average night temperature (°C) | -4.1 | -1.1 | 4.9 | 7.8 | 12.9 | 17.6 | 22.1 | 22.6 | 18.7 | 10.8 | 2.9 | -1.0 |
| Absolute minimum temperature (°C) | -15.9 | -6.9 | -4.0 | 0.7 | 5.4 | 14.6 | 18.0 | 20.8 | 14.2 | 4.5 | -7.3 | -12.7 |
| 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 | 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) | 7.8 | 7.5 | 9.1 | 8.5 | 7.9 | 8.9 | 7.3 | 8.7 | 7.2 | 8.6 | 7.8 | 6.8 |
| Precipitation (mm) | 34 | 32 | 58 | 69 | 170 | 157 | 264 | 271 | 230 | 8 | 52 | 92 |
| Sunny days | 22 | 19 | 21 | 16 | 13 | 11 | 3 | 3 | 7 | 22 | 22 | 20 |
| Rainy days | 4 | 8 | 10 | 14 | 18 | 19 | 28 | 28 | 23 | 9 | 8 | 9 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Ŭllyŏng is at