Changyŏn climate — normals and trends
Changyŏn (North Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 10.9 °C and it receives 1,022 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 (23.8 °C on average) and the coldest is January (-1.9 °C). Rainfall peaks in July.
Changyŏn averages 78 frost days, 0 hot days (≥ 30 °C) and 98 rainy days per year.
Changyŏn has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 91 to 65 per year over the period.
The hottest day of the period reached 30.7 °C (on 11 August 2019) and the coldest -14.3 °C (on 4 January 1970).
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
ChangyŏnSouth Hwanghae
- coords
- 38.25°, 125.10°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.9°C
Average daily high
13.0°C
Average daily low
8.9°C
Annual rainfall
1,022mm
Sunshine / day
8.9h
Mean relative humidity
76%
Average peak wind
23.4km/h
Seasonal range
25.7°C
Frost days (< 0 °C)
78 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
98 d/yr
Annual snowfall
37.7 cm
Average feels-like high
11.3 °C
Average feels-like low
6.0 °C
Average peak gust
37.3 km/h
Tropical nights (≥ 20 °C)
58 d/yr
Solar radiation
15.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.41 · 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
30.7 °C
11 August 2019
Coldest day
-14.3 °C
4 January 1970
Wettest day
222 mm
7 September 1962
Windiest day
69.4 km/h
8 June 1951
Strongest gust
119.5 km/h
8 August 2011
Hottest feels-like
37.7 °C
17 August 2024
Coldest feels-like
-24.2 °C
4 January 1970
Snowiest day
18.0 cm
8 March 1991
Sunniest day
14.1 h
17 June 2007
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 | 2.0 °C | +1.7 °C | 24 mm | -2 mm |
| Feb | 0.5 °C | -0.8 °C | 17 mm | -4 mm |
| Mar | 7.1 °C | +1.8 °C | 33 mm | +1 mm |
| Apr | 11.1 °C | +0.6 °C | 78 mm | +16 mm |
| May | 15.5 °C | +0.1 °C | 84 mm | +5 mm |
| Jun | 21.0 °C | +0.8 °C | 127 mm | +31 mm |
| Jul | 26.1 °C | +2.1 °C | 75 mm | -176 mm |
| Aug | 27.0 °C | +1.5 °C | 160 mm | -40 mm |
| Sep | 24.5 °C | +2.2 °C | 208 mm | +97 mm |
| Oct | 17.8 °C | +0.9 °C | 130 mm | +80 mm |
| Nov | 12.1 °C | +1.9 °C | 27 mm | -29 mm |
| Dec | 4.8 °C | +1.2 °C | 35 mm | -4 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 Changyŏn?
Changyŏn has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 10.9 °C and it receives 1,022 mm of precipitation per year.
What is the hottest day ever recorded in Changyŏn?
The hottest day measured in Changyŏn between 1940 and 2025 was 11 August 2019, reaching 30.7 °C.
What is the coldest day in Changyŏn?
The coldest day measured in Changyŏn between 1940 and 2025 was 4 January 1970, at -14.3 °C.
Does it snow in Changyŏn?
Yes. Changyŏn gets on average 37.7 cm of snow per year and has around 78 frost days.
Has the climate of Changyŏn warmed?
Yes: Changyŏn warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Changyŏn?
The wettest day measured in Changyŏn between 1940 and 2025 was 7 September 1962, with 222 mm of rain in 24 hours.
What was the windiest day in Changyŏn?
The windiest day measured in Changyŏn between 1940 and 2025 was 8 June 1951, with winds reaching 69.4 km/h.
What is the warmest month in Changyŏn?
The warmest month in Changyŏn is August (23.8 °C on average); the coldest is January (-1.9 °C).
How much does it rain in Changyŏn?
Changyŏn receives on average 1,022 mm of precipitation per year, spread over about 98 rainy days.
Is it sunny in Changyŏn?
Changyŏn gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Changyŏn?
The heaviest 24-hour snowfall measured in Changyŏn between 1940 and 2025 was 8 March 1991, with 18.0 cm.
Are there tropical nights in Changyŏn?
Yes: Changyŏn has on average 58 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Changyŏn?
In Changyŏn, between 1940 and 2025, the highest apparent temperature reached 37.7 °C on 17 August 2024, and the lowest was -24.2 °C on 4 January 1970.
Compare Changyŏn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Changyŏn