Cheorwon climate — normals and trends
Cheorwon (South Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 9.8 °C and it receives 1,316 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 (23.7 °C on average) and the coldest is January (-6.5 °C). Rainfall peaks in July.
Cheorwon averages 130 frost days, 14 hot days (≥ 30 °C) and 111 rainy days per year.
Cheorwon 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 141 to 119 per year over the period.
The hottest day of the period reached 37.1 °C (on 1 August 2018) and the coldest -31.6 °C (on 15 January 2001).
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
CheorwonGangwon-do
- coords
- 38.21°, 127.22°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.8°C
Average daily high
14.8°C
Average daily low
5.0°C
Annual rainfall
1,316mm
Sunshine / day
8.5h
Mean relative humidity
72%
Average peak wind
13.6km/h
Seasonal range
30.2°C
Frost days (< 0 °C)
130 d/yr
Hot days (≥ 30 °C)
14 d/yr
Rainy days (≥ 1 mm)
111 d/yr
Annual snowfall
46.5 cm
Average feels-like high
13.5 °C
Average feels-like low
3.2 °C
Average peak gust
34.7 km/h
Tropical nights (≥ 20 °C)
38 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 = 0.60 · 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
37.1 °C
1 August 2018
Coldest day
-31.6 °C
15 January 2001
Wettest day
190 mm
29 June 2011
Windiest day
40.9 km/h
7 September 2019
Strongest gust
104.8 km/h
28 August 1986
Hottest feels-like
43.8 °C
1 August 2018
Coldest feels-like
-36.7 °C
15 January 2001
Snowiest day
23.8 cm
28 February 1956
Sunniest day
14.4 h
25 June 1958
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 | 1.2 °C | +2.4 °C | 20 mm | -3 mm |
| Feb | 1.5 °C | -0.5 °C | 6 mm | -23 mm |
| Mar | 11.2 °C | +2.8 °C | 45 mm | -4 mm |
| Apr | 17.3 °C | +1.4 °C | 107 mm | +23 mm |
| May | 20.5 °C | -0.9 °C | 100 mm | -2 mm |
| Jun | 26.4 °C | +1.5 °C | 173 mm | +31 mm |
| Jul | 29.7 °C | +2.8 °C | 174 mm | -167 mm |
| Aug | 29.7 °C | +2.0 °C | 152 mm | -113 mm |
| Sep | 25.4 °C | +1.8 °C | 237 mm | +91 mm |
| Oct | 18.3 °C | +0.8 °C | 198 mm | +142 mm |
| Nov | 11.7 °C | +2.5 °C | 21 mm | -30 mm |
| Dec | 2.6 °C | +1.2 °C | 45 mm | +15 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 Cheorwon?
Cheorwon has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 9.8 °C and it receives 1,316 mm of precipitation per year.
What is the hottest day ever recorded in Cheorwon?
The hottest day measured in Cheorwon between 1940 and 2025 was 1 August 2018, reaching 37.1 °C.
What is the coldest day in Cheorwon?
The coldest day measured in Cheorwon between 1940 and 2025 was 15 January 2001, at -31.6 °C.
Does it snow in Cheorwon?
Yes. Cheorwon gets on average 46.5 cm of snow per year and has around 130 frost days.
Has the climate of Cheorwon warmed?
Yes: Cheorwon warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cheorwon?
The wettest day measured in Cheorwon between 1940 and 2025 was 29 June 2011, with 190 mm of rain in 24 hours.
What was the windiest day in Cheorwon?
The windiest day measured in Cheorwon between 1940 and 2025 was 7 September 2019, with winds reaching 40.9 km/h.
What is the warmest month in Cheorwon?
The warmest month in Cheorwon is August (23.7 °C on average); the coldest is January (-6.5 °C).
How much does it rain in Cheorwon?
Cheorwon receives on average 1,316 mm of precipitation per year, spread over about 111 rainy days.
Is it sunny in Cheorwon?
Cheorwon gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Cheorwon?
The heaviest 24-hour snowfall measured in Cheorwon between 1940 and 2025 was 28 February 1956, with 23.8 cm.
Are there tropical nights in Cheorwon?
Yes: Cheorwon has on average 38 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cheorwon?
In Cheorwon, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 1 August 2018, and the lowest was -36.7 °C on 15 January 2001.
Compare Cheorwon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cheorwon