Yanggu climate — normals and trends
Yanggu (South Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 9.5 °C and it receives 1,201 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 (23.1 °C on average) and the coldest is January (-6.4 °C). Rainfall peaks in July.
Yanggu averages 124 frost days, 9 hot days (≥ 30 °C) and 111 rainy days per year.
Yanggu has warmed by +2.5 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 137 to 111 per year over the period.
The hottest day of the period reached 36.0 °C (on 1 August 2018) and the coldest -30.4 °C (on 31 January 1941).
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
YangguGangwon-do
- coords
- 38.11°, 127.99°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.5°C
Average daily high
14.1°C
Average daily low
5.0°C
Annual rainfall
1,201mm
Sunshine / day
8.6h
Mean relative humidity
72%
Average peak wind
13.0km/h
Seasonal range
29.5°C
Frost days (< 0 °C)
124 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
111 d/yr
Annual snowfall
58.8 cm
Average feels-like high
12.7 °C
Average feels-like low
3.2 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
32 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.58 · 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
36.0 °C
1 August 2018
Coldest day
-30.4 °C
31 January 1941
Wettest day
188 mm
7 August 2002
Windiest day
40.8 km/h
4 May 2016
Strongest gust
117.7 km/h
7 September 2019
Hottest feels-like
41.4 °C
1 August 2018
Coldest feels-like
-35.3 °C
31 January 1941
Snowiest day
30.8 cm
28 February 1956
Sunniest day
14.5 h
28 June 1951
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 | 0.9 °C | +2.3 °C | 20 mm | -6 mm |
| Feb | 1.3 °C | -0.2 °C | 4 mm | -28 mm |
| Mar | 10.0 °C | +2.4 °C | 55 mm | +2 mm |
| Apr | 16.6 °C | +1.5 °C | 91 mm | +7 mm |
| May | 19.4 °C | -0.9 °C | 103 mm | +11 mm |
| Jun | 25.2 °C | +1.5 °C | 126 mm | -4 mm |
| Jul | 28.8 °C | +2.8 °C | 185 mm | -109 mm |
| Aug | 28.7 °C | +1.9 °C | 214 mm | -4 mm |
| Sep | 24.4 °C | +1.8 °C | 253 mm | +112 mm |
| Oct | 17.5 °C | +0.7 °C | 166 mm | +114 mm |
| Nov | 11.3 °C | +2.4 °C | 20 mm | -27 mm |
| Dec | 3.0 °C | +1.6 °C | 48 mm | +17 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 Yanggu?
Yanggu has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 9.5 °C and it receives 1,201 mm of precipitation per year.
What is the hottest day ever recorded in Yanggu?
The hottest day measured in Yanggu between 1940 and 2025 was 1 August 2018, reaching 36.0 °C.
What is the coldest day in Yanggu?
The coldest day measured in Yanggu between 1940 and 2025 was 31 January 1941, at -30.4 °C.
Does it snow in Yanggu?
Yes. Yanggu gets on average 58.8 cm of snow per year and has around 124 frost days.
Has the climate of Yanggu warmed?
Yes: Yanggu warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yanggu?
The wettest day measured in Yanggu between 1940 and 2025 was 7 August 2002, with 188 mm of rain in 24 hours.
What was the windiest day in Yanggu?
The windiest day measured in Yanggu between 1940 and 2025 was 4 May 2016, with winds reaching 40.8 km/h.
What is the warmest month in Yanggu?
The warmest month in Yanggu is August (23.1 °C on average); the coldest is January (-6.4 °C).
How much does it rain in Yanggu?
Yanggu receives on average 1,201 mm of precipitation per year, spread over about 111 rainy days.
Is it sunny in Yanggu?
Yanggu gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yanggu?
The heaviest 24-hour snowfall measured in Yanggu between 1940 and 2025 was 28 February 1956, with 30.8 cm.
Are there tropical nights in Yanggu?
Yes: Yanggu has on average 32 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yanggu?
In Yanggu, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 1 August 2018, and the lowest was -35.3 °C on 31 January 1941.
Compare Yanggu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yanggu