Average annual temperature is 8.3 °C
Absolute maximum temperature: 30.8 °C
Absolute minimum temperature: -27.3 °C
Number of sunny days: 194 days
Number of rainy days: 153 days
Number of snow days: 18 days
Look at detailed online map of Chŏnam
* Weather data for Chŏnam North 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) | 7.0 | 7.3 | 18.3 | 19.8 | 25.5 | 29.7 | 30.8 | 30.8 | 28.4 | 20.9 | 18.5 | 8.2 |
| Average daytime temperature (°C) | -4.9 | 1.5 | 8.9 | 13.6 | 19.7 | 24.0 | 26.5 | 26.3 | 23.9 | 15.9 | 3.7 | -3.4 |
| Average temperature (°C) | -9.7 | -3.3 | 3.0 | 8.2 | 14.7 | 19.0 | 22.6 | 22.7 | 19.0 | 11.1 | -0.6 | -7.9 |
| Average night temperature (°C) | -14.9 | -7.0 | -1.4 | 3.7 | 10.1 | 14.6 | 19.5 | 19.5 | 14.9 | 7.3 | -4.1 | -12.0 |
| Absolute minimum temperature (°C) | -27.3 | -11.3 | -7.6 | -2.6 | 5.7 | 8.9 | 16.7 | 14.2 | 8.5 | 0.9 | -11.1 | -24.2 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 6.6 | 7.6 | 9.1 | 8.7 | 9.4 | 10.1 | 8.4 | 7.3 | 9.8 | 7.9 | 6.1 | 5.8 |
| Precipitation (mm) | 25 | 3 | 21 | 109 | 120 | 207 | 237 | 346 | 19 | 103 | 100 | 53 |
| Sunny days | 19 | 24 | 21 | 17 | 17 | 9 | 4 | 8 | 16 | 20 | 18 | 21 |
| Rainy days | 3 | 2 | 10 | 13 | 14 | 21 | 27 | 23 | 14 | 11 | 10 | 5 |
| Snow days | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The largest precipitation sum in Chŏnam is at