Changam-ch’on climate — normals and trends
Changam-ch’on (North Korea) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.5 °C and it receives 847 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 (21.6 °C on average) and the coldest is January (-8.3 °C). Rainfall peaks in August.
Changam-ch’on averages 145 frost days, 4 hot days (≥ 30 °C) and 105 rainy days per year.
Changam-ch’on has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 156 to 134 per year over the period.
The hottest day of the period reached 36.7 °C (on 5 June 1980) and the coldest -25.9 °C (on 25 January 2023).
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
Changam-ch’onSouth Hamgyong
- coords
- 40.61°, 128.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.5°C
Average daily high
12.4°C
Average daily low
3.1°C
Annual rainfall
847mm
Sunshine / day
9.2h
Mean relative humidity
72%
Average peak wind
12.3km/h
Seasonal range
29.9°C
Frost days (< 0 °C)
145 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
91.5 cm
Average feels-like high
11.1 °C
Average feels-like low
0.6 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
16 d/yr
Solar radiation
15.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.71 · 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
36.7 °C
5 June 1980
Coldest day
-25.9 °C
25 January 2023
Wettest day
166 mm
21 August 1957
Windiest day
36.7 km/h
10 October 2001
Strongest gust
120.6 km/h
10 October 2001
Hottest feels-like
41.5 °C
4 August 2018
Coldest feels-like
-31.7 °C
25 January 2023
Snowiest day
40.2 cm
15 March 1965
Sunniest day
14.9 h
29 June 1941
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 | 0.1 °C | +2.7 °C | 54 mm | +29 mm |
| Feb | 1.3 °C | +1.6 °C | 5 mm | -20 mm |
| Mar | 7.3 °C | +2.2 °C | 27 mm | -7 mm |
| Apr | 13.0 °C | +0.1 °C | 94 mm | +46 mm |
| May | 18.6 °C | +0.2 °C | 58 mm | -5 mm |
| Jun | 24.9 °C | +3.7 °C | 169 mm | +90 mm |
| Jul | 28.5 °C | +4.0 °C | 106 mm | -54 mm |
| Aug | 27.8 °C | +2.7 °C | 111 mm | -77 mm |
| Sep | 23.4 °C | +2.3 °C | 99 mm | +2 mm |
| Oct | 15.2 °C | -0.4 °C | 103 mm | +52 mm |
| Nov | 9.6 °C | +2.3 °C | 12 mm | -32 mm |
| Dec | 1.4 °C | +1.5 °C | 37 mm | +5 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 Changam-ch’on?
Changam-ch’on has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.5 °C and it receives 847 mm of precipitation per year.
What is the hottest day ever recorded in Changam-ch’on?
The hottest day measured in Changam-ch’on between 1940 and 2025 was 5 June 1980, reaching 36.7 °C.
What is the coldest day in Changam-ch’on?
The coldest day measured in Changam-ch’on between 1940 and 2025 was 25 January 2023, at -25.9 °C.
Does it snow in Changam-ch’on?
Yes. Changam-ch’on gets on average 91.5 cm of snow per year and has around 145 frost days.
Has the climate of Changam-ch’on warmed?
Yes: Changam-ch’on warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Changam-ch’on?
The wettest day measured in Changam-ch’on between 1940 and 2025 was 21 August 1957, with 166 mm of rain in 24 hours.
What was the windiest day in Changam-ch’on?
The windiest day measured in Changam-ch’on between 1940 and 2025 was 10 October 2001, with winds reaching 36.7 km/h.
What is the warmest month in Changam-ch’on?
The warmest month in Changam-ch’on is August (21.6 °C on average); the coldest is January (-8.3 °C).
How much does it rain in Changam-ch’on?
Changam-ch’on receives on average 847 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Changam-ch’on?
Changam-ch’on gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
What is the biggest single-day snowfall in Changam-ch’on?
The heaviest 24-hour snowfall measured in Changam-ch’on between 1940 and 2025 was 15 March 1965, with 40.2 cm.
Are there tropical nights in Changam-ch’on?
Yes: Changam-ch’on has on average 16 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Changam-ch’on?
In Changam-ch’on, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 4 August 2018, and the lowest was -31.7 °C on 25 January 2023.
Compare Changam-ch’on with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Changam-ch’on