Ŭllyul climate — normals and trends
Ŭllyul (North Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °C and it receives 970 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (24.9 °C on average) and the coldest is January (-4.2 °C). Rainfall peaks in July.
Ŭllyul averages 114 frost days, 18 hot days (≥ 30 °C) and 95 rainy days per year.
Ŭllyul has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 123 to 105 per year over the period.
The hottest day of the period reached 36.8 °C (on 2 August 2018) and the coldest -22.5 °C (on 17 January 1961).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ŬllyulSouth Hwanghae
- coords
- 38.51°, 125.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.0°C
Average daily high
15.4°C
Average daily low
7.1°C
Annual rainfall
970mm
Sunshine / day
9.0h
Mean relative humidity
72%
Average peak wind
17.0km/h
Seasonal range
29.1°C
Frost days (< 0 °C)
114 d/yr
Hot days (≥ 30 °C)
18 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
29.5 cm
Average feels-like high
14.1 °C
Average feels-like low
5.1 °C
Average peak gust
37.2 km/h
Tropical nights (≥ 20 °C)
53 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.55 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.8 °C
2 August 2018
Coldest day
-22.5 °C
17 January 1961
Wettest day
224 mm
7 September 1962
Windiest day
54.2 km/h
17 April 1946
Strongest gust
120.2 km/h
27 August 2020
Hottest feels-like
45.4 °C
1 August 2018
Coldest feels-like
-28.0 °C
17 January 1961
Snowiest day
19.7 cm
30 January 1950
Sunniest day
14.2 h
21 June 1952
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 1.9 °C | +2.4 °C | 13 mm | -6 mm |
| Feb | 1.1 °C | -0.8 °C | 9 mm | -9 mm |
| Mar | 11.1 °C | +3.0 °C | 31 mm | +1 mm |
| Apr | 16.0 °C | +0.4 °C | 76 mm | +21 mm |
| May | 20.9 °C | -0.7 °C | 85 mm | +12 mm |
| Jun | 27.0 °C | +1.3 °C | 141 mm | +44 mm |
| Jul | 31.0 °C | +3.1 °C | 79 mm | -168 mm |
| Aug | 30.6 °C | +2.1 °C | 205 mm | 0 mm |
| Sep | 26.5 °C | +2.0 °C | 215 mm | +106 mm |
| Oct | 18.7 °C | +0.4 °C | 111 mm | +64 mm |
| Nov | 12.5 °C | +2.3 °C | 22 mm | -23 mm |
| Dec | 3.4 °C | +0.9 °C | 25 mm | -0 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Ŭllyul?
Ŭllyul has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 970 mm of precipitation per year.
What is the hottest day ever recorded in Ŭllyul?
The hottest day measured in Ŭllyul between 1940 and 2025 was 2 August 2018, reaching 36.8 °C.
What is the coldest day in Ŭllyul?
The coldest day measured in Ŭllyul between 1940 and 2025 was 17 January 1961, at -22.5 °C.
Does it snow in Ŭllyul?
Yes. Ŭllyul gets on average 29.5 cm of snow per year and has around 114 frost days.
Has the climate of Ŭllyul warmed?
Yes: Ŭllyul warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ŭllyul?
The wettest day measured in Ŭllyul between 1940 and 2025 was 7 September 1962, with 224 mm of rain in 24 hours.
What was the windiest day in Ŭllyul?
The windiest day measured in Ŭllyul between 1940 and 2025 was 17 April 1946, with winds reaching 54.2 km/h.
What is the warmest month in Ŭllyul?
The warmest month in Ŭllyul is August (24.9 °C on average); the coldest is January (-4.2 °C).
How much does it rain in Ŭllyul?
Ŭllyul receives on average 970 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Ŭllyul?
Ŭllyul gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ŭllyul?
The heaviest 24-hour snowfall measured in Ŭllyul between 1940 and 2025 was 30 January 1950, with 19.7 cm.
Are there tropical nights in Ŭllyul?
Yes: Ŭllyul has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ŭllyul?
In Ŭllyul, between 1940 and 2025, the highest apparent temperature reached 45.4 °C on 1 August 2018, and the lowest was -28.0 °C on 17 January 1961.
Compare Ŭllyul with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ŭllyul