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Weather & Climate in Ŭllyul, North Korea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ŭllyul experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 74°F in July. The area gets 266 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 38.4 inches. The area receives 2.2 inches of snow annually. The city sits at an elevation of 95 feet.
Temperature
23°F Jan (-5°C)
74°F Jul (23°C)
| Annual Average | 50.3°F |
| 7% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 266 days/yr |
Geography
| Elevation | 95 ft (29 m) |
| Area | 240.1 sq mi (621.7 km²) |
| Population Density | 450/sq mi |
| Coordinates | 38.5139°N, 125.1897°W |
| Timezone | Asia/Pyongyang |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| May 17, 2013 | 80 km WSW of Ongjin, North Korea | M4.8 | 114 km | 10 km |
| Jul 24, 1995 | 78 km WSW of Changy?n, North Korea | M4.7 | 98 km | 33 km |
| Nov 11, 1992 | 8 km NW of Chunghwa, North Korea | M4.3 | 67 km | 10 km |
| Aug 11, 1995 | 62 km WSW of Changy?n, North Korea | M4.0 | 85 km | 10 km |
| Mar 17, 2002 | 49 km WSW of Changy?n, North Korea | M3.9 | 73 km | 33 km |
| Jun 27, 2019 | 10 km W of Chunghwa, North Korea | M3.6 | 57 km | 10 km |
| Jan 8, 2023 | South Korea | M3.6 | 123 km | 17 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
4 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Bavi | Category 2 | 81 mph | 57 km |
| 2019 | Lingling | Category 1 | 69 mph | 68 km |
| 2010 | Kompasu | Category 1 | 69 mph | 157 km |
| 2000 | Prapiroon | Category 1 | 69 mph | 135 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Ch'uga-ryong (188 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ch'uga-ryong | Shield | 452 m (1,483 ft) | Unknown | 188 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 0.8 in | Coldest |
| February | 27°F (-3°C) | 0.6 in | Driest |
| March | 37°F (3°C) | 0.9 in | |
| April | 50°F (10°C) | 2.1 in | |
| May | 60°F (16°C) | 2.6 in | |
| June | 68°F (20°C) | 4.1 in | |
| July | 74°F (23°C) | 10.3 in | Wettest |
| August | 75°F (24°C) | 8.5 in | Warmest |
| September | 66°F (19°C) | 4.6 in | |
| October | 55°F (13°C) | 1.7 in | |
| November | 41°F (5°C) | 1.4 in | |
| December | 29°F (-2°C) | 0.8 in |
Ŭllyul has a seasonal temperature swing of 52°F / from 23°F in January to 75°F in August. Total annual precipitation is 38.4 inches, with July being the wettest month (10.3") and February the driest (0.6").