Average annual temperature is 10.5 °C
Absolute maximum temperature: 31.6 °C
Absolute minimum temperature: -18.4 °C
Number of sunny days: 193 days
Number of rainy days: 154 days
Number of snow days: 18 days
Look at detailed online map of Yŏllami
* Weather data for Yŏllami 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 | 10.6 | 19.1 | 21.6 | 27.5 | 28.5 | 30.5 | 31.6 | 26.3 | 20.4 | 20.5 | 12.4 |
| Average daytime temperature (°C) | 0.6 | 4.8 | 12.3 | 14.5 | 19.5 | 24.1 | 26.5 | 27.1 | 23.0 | 16.4 | 8.5 | 2.4 |
| Average temperature (°C) | -3.6 | -0.2 | 6.3 | 9.4 | 14.8 | 19.4 | 22.8 | 23.3 | 19.2 | 11.4 | 3.9 | -1.5 |
| Average night temperature (°C) | -7.1 | -3.7 | 1.1 | 4.8 | 10.2 | 15.5 | 19.8 | 20.2 | 16.1 | 6.9 | -0.1 | -4.5 |
| Absolute minimum temperature (°C) | -18.4 | -8.0 | -7.2 | -1.9 | 3.9 | 12.3 | 15.8 | 15.0 | 10.6 | 1.5 | -10.4 | -16.3 |
| 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) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 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) | 7.4 | 7.7 | 9.0 | 8.6 | 8.9 | 9.9 | 7.5 | 9.1 | 7.5 | 8.7 | 7.6 | 6.4 |
| Precipitation (mm) | 31 | 12 | 31 | 89 | 159 | 199 | 432 | 227 | 197 | 14 | 52 | 107 |
| Sunny days | 21 | 19 | 23 | 16 | 18 | 7 | 5 | 10 | 12 | 22 | 20 | 20 |
| Rainy days | 3 | 2 | 8 | 14 | 13 | 23 | 26 | 21 | 18 | 9 | 9 | 8 |
| Snow days | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The largest precipitation sum in Yŏllami is at