Hayang climate — normals and trends
Hayang (South Korea) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.5 °C and it receives 1,030 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 (25.4 °C on average) and the coldest is January (-1.3 °C). Rainfall peaks in July.
Hayang averages 101 frost days, 35 hot days (≥ 30 °C) and 91 rainy days per year.
Hayang has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 118 to 84 per year over the period.
The hottest day of the period reached 39.0 °C (on 14 August 1995) and the coldest -21.3 °C (on 16 January 1967).
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
HayangGyeongsangbuk-do
- coords
- 35.91°, 128.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.5°C
Average daily high
17.5°C
Average daily low
7.9°C
Annual rainfall
1,030mm
Sunshine / day
8.6h
Mean relative humidity
67%
Average peak wind
14.1km/h
Seasonal range
26.7°C
Frost days (< 0 °C)
101 d/yr
Hot days (≥ 30 °C)
35 d/yr
Rainy days (≥ 1 mm)
91 d/yr
Annual snowfall
14.6 cm
Average feels-like high
16.2 °C
Average feels-like low
6.5 °C
Average peak gust
37.8 km/h
Tropical nights (≥ 20 °C)
55 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.70 · 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
39.0 °C
14 August 1995
Coldest day
-21.3 °C
16 January 1967
Wettest day
163 mm
18 July 1964
Windiest day
47.4 km/h
31 August 1987
Strongest gust
154.8 km/h
16 July 1987
Hottest feels-like
43.2 °C
29 July 1951
Coldest feels-like
-26.9 °C
16 January 1967
Snowiest day
19.2 cm
9 December 1952
Sunniest day
14.0 h
23 June 1942
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 | 5.2 °C | +1.8 °C | 6 mm | -17 mm |
| Feb | 5.2 °C | -0.7 °C | 15 mm | -15 mm |
| Mar | 14.2 °C | +2.7 °C | 60 mm | +2 mm |
| Apr | 20.6 °C | +2.3 °C | 52 mm | -27 mm |
| May | 22.8 °C | -0.6 °C | 96 mm | +8 mm |
| Jun | 29.0 °C | +2.4 °C | 183 mm | +54 mm |
| Jul | 31.9 °C | +3.2 °C | 161 mm | -50 mm |
| Aug | 32.8 °C | +3.2 °C | 93 mm | -69 mm |
| Sep | 27.4 °C | +2.5 °C | 149 mm | +12 mm |
| Oct | 20.2 °C | +0.6 °C | 144 mm | +92 mm |
| Nov | 14.7 °C | +2.0 °C | 14 mm | -25 mm |
| Dec | 7.4 °C | +1.7 °C | 18 mm | -3 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 Hayang?
Hayang has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 12.5 °C and it receives 1,030 mm of precipitation per year.
What is the hottest day ever recorded in Hayang?
The hottest day measured in Hayang between 1940 and 2025 was 14 August 1995, reaching 39.0 °C.
What is the coldest day in Hayang?
The coldest day measured in Hayang between 1940 and 2025 was 16 January 1967, at -21.3 °C.
Does it snow in Hayang?
Yes. Hayang gets on average 14.6 cm of snow per year and has around 101 frost days.
Has the climate of Hayang warmed?
Yes: Hayang warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hayang?
The wettest day measured in Hayang between 1940 and 2025 was 18 July 1964, with 163 mm of rain in 24 hours.
What was the windiest day in Hayang?
The windiest day measured in Hayang between 1940 and 2025 was 31 August 1987, with winds reaching 47.4 km/h.
What is the warmest month in Hayang?
The warmest month in Hayang is August (25.4 °C on average); the coldest is January (-1.3 °C).
How much does it rain in Hayang?
Hayang receives on average 1,030 mm of precipitation per year, spread over about 91 rainy days.
Is it sunny in Hayang?
Hayang 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 Hayang?
The heaviest 24-hour snowfall measured in Hayang between 1940 and 2025 was 9 December 1952, with 19.2 cm.
Are there tropical nights in Hayang?
Yes: Hayang has on average 55 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hayang?
In Hayang, between 1940 and 2025, the highest apparent temperature reached 43.2 °C on 29 July 1951, and the lowest was -26.9 °C on 16 January 1967.
Compare Hayang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hayang