Hadong climate — normals and trends
Hadong (South Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 13.1 °C and it receives 1,520 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 (25.6 °C on average) and the coldest is January (-0.2 °C). Rainfall peaks in July.
Hadong averages 82 frost days, 19 hot days (≥ 30 °C) and 105 rainy days per year.
Hadong has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 97 to 67 per year over the period.
The hottest day of the period reached 35.6 °C (on 4 August 1983) and the coldest -15.4 °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
HadongGyeongsangnam-do
- coords
- 35.07°, 127.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.1°C
Average daily high
17.4°C
Average daily low
9.5°C
Annual rainfall
1,520mm
Sunshine / day
8.8h
Mean relative humidity
75%
Average peak wind
13.8km/h
Seasonal range
25.8°C
Frost days (< 0 °C)
82 d/yr
Hot days (≥ 30 °C)
19 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
8.1 cm
Average feels-like high
17.0 °C
Average feels-like low
8.4 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
70 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
35.6 °C
4 August 1983
Coldest day
-15.4 °C
15 January 2001
Wettest day
206 mm
2 September 1981
Windiest day
55.1 km/h
28 August 1986
Strongest gust
157.0 km/h
15 July 1987
Hottest feels-like
43.4 °C
23 July 2004
Coldest feels-like
-20.6 °C
15 January 2001
Snowiest day
15.5 cm
11 February 1994
Sunniest day
13.9 h
26 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 | 6.5 °C | +1.8 °C | 10 mm | -20 mm |
| Feb | 5.5 °C | -1.2 °C | 35 mm | -10 mm |
| Mar | 13.4 °C | +1.9 °C | 71 mm | -8 mm |
| Apr | 19.0 °C | +1.7 °C | 70 mm | -63 mm |
| May | 21.2 °C | -0.6 °C | 183 mm | +40 mm |
| Jun | 26.4 °C | +1.9 °C | 186 mm | -32 mm |
| Jul | 30.8 °C | +3.2 °C | 204 mm | -108 mm |
| Aug | 30.9 °C | +2.1 °C | 275 mm | +34 mm |
| Sep | 27.5 °C | +2.4 °C | 195 mm | +16 mm |
| Oct | 22.1 °C | +2.0 °C | 154 mm | +92 mm |
| Nov | 15.3 °C | +1.7 °C | 25 mm | -26 mm |
| Dec | 9.2 °C | +2.0 °C | 16 mm | -10 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 Hadong?
Hadong has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 13.1 °C and it receives 1,520 mm of precipitation per year.
What is the hottest day ever recorded in Hadong?
The hottest day measured in Hadong between 1940 and 2025 was 4 August 1983, reaching 35.6 °C.
What is the coldest day in Hadong?
The coldest day measured in Hadong between 1940 and 2025 was 15 January 2001, at -15.4 °C.
Does it snow in Hadong?
Yes. Hadong gets on average 8.1 cm of snow per year and has around 82 frost days.
Has the climate of Hadong warmed?
Yes: Hadong warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hadong?
The wettest day measured in Hadong between 1940 and 2025 was 2 September 1981, with 206 mm of rain in 24 hours.
What was the windiest day in Hadong?
The windiest day measured in Hadong between 1940 and 2025 was 28 August 1986, with winds reaching 55.1 km/h.
What is the warmest month in Hadong?
The warmest month in Hadong is August (25.6 °C on average); the coldest is January (-0.2 °C).
How much does it rain in Hadong?
Hadong receives on average 1,520 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Hadong?
Hadong gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Hadong?
The heaviest 24-hour snowfall measured in Hadong between 1940 and 2025 was 11 February 1994, with 15.5 cm.
Are there tropical nights in Hadong?
Yes: Hadong has on average 70 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hadong?
In Hadong, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 23 July 2004, and the lowest was -20.6 °C on 15 January 2001.
Compare Hadong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hadong