Neietsu climate — normals and trends
Neietsu (South Korea) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 9.4 °C and it receives 1,151 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 (22.8 °C on average) and the coldest is January (-6.1 °C). Rainfall peaks in July.
Neietsu averages 130 frost days, 8 hot days (≥ 30 °C) and 109 rainy days per year.
Neietsu has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 142 to 118 per year over the period.
The hottest day of the period reached 35.1 °C (on 1 August 2018) and the coldest -33.4 °C (on 1 February 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
NeietsuGangwon-do
- coords
- 37.18°, 128.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.4°C
Average daily high
14.2°C
Average daily low
4.8°C
Annual rainfall
1,151mm
Sunshine / day
8.7h
Mean relative humidity
71%
Average peak wind
14.2km/h
Seasonal range
28.9°C
Frost days (< 0 °C)
130 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
109 d/yr
Annual snowfall
56.8 cm
Average feels-like high
12.5 °C
Average feels-like low
2.9 °C
Average peak gust
37.8 km/h
Tropical nights (≥ 20 °C)
29 d/yr
Solar radiation
14.9 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
35.1 °C
1 August 2018
Coldest day
-33.4 °C
1 February 1941
Wettest day
180 mm
19 August 1972
Windiest day
41.8 km/h
18 April 1946
Strongest gust
124.6 km/h
16 July 1987
Hottest feels-like
39.8 °C
14 August 1952
Coldest feels-like
-37.8 °C
1 February 1941
Snowiest day
21.7 cm
2 March 1971
Sunniest day
14.3 h
25 June 1948
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 | 1.1 °C | +2.1 °C | 20 mm | -8 mm |
| Feb | 1.1 °C | -0.6 °C | 8 mm | -25 mm |
| Mar | 9.8 °C | +2.0 °C | 71 mm | +11 mm |
| Apr | 17.0 °C | +1.8 °C | 77 mm | -7 mm |
| May | 19.6 °C | -0.7 °C | 103 mm | +15 mm |
| Jun | 25.4 °C | +1.7 °C | 156 mm | +26 mm |
| Jul | 28.9 °C | +2.9 °C | 190 mm | -74 mm |
| Aug | 28.7 °C | +2.0 °C | 133 mm | -61 mm |
| Sep | 24.1 °C | +1.7 °C | 232 mm | +89 mm |
| Oct | 17.5 °C | +0.8 °C | 178 mm | +126 mm |
| Nov | 11.3 °C | +2.2 °C | 13 mm | -32 mm |
| Dec | 3.3 °C | +1.6 °C | 35 mm | +4 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 Neietsu?
Neietsu has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 9.4 °C and it receives 1,151 mm of precipitation per year.
What is the hottest day ever recorded in Neietsu?
The hottest day measured in Neietsu between 1940 and 2025 was 1 August 2018, reaching 35.1 °C.
What is the coldest day in Neietsu?
The coldest day measured in Neietsu between 1940 and 2025 was 1 February 1941, at -33.4 °C.
Does it snow in Neietsu?
Yes. Neietsu gets on average 56.8 cm of snow per year and has around 130 frost days.
Has the climate of Neietsu warmed?
Yes: Neietsu warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Neietsu?
The wettest day measured in Neietsu between 1940 and 2025 was 19 August 1972, with 180 mm of rain in 24 hours.
What was the windiest day in Neietsu?
The windiest day measured in Neietsu between 1940 and 2025 was 18 April 1946, with winds reaching 41.8 km/h.
What is the warmest month in Neietsu?
The warmest month in Neietsu is August (22.8 °C on average); the coldest is January (-6.1 °C).
How much does it rain in Neietsu?
Neietsu receives on average 1,151 mm of precipitation per year, spread over about 109 rainy days.
Is it sunny in Neietsu?
Neietsu gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Neietsu?
The heaviest 24-hour snowfall measured in Neietsu between 1940 and 2025 was 2 March 1971, with 21.7 cm.
Are there tropical nights in Neietsu?
Yes: Neietsu has on average 29 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Neietsu?
In Neietsu, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 14 August 1952, and the lowest was -37.8 °C on 1 February 1941.
Compare Neietsu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Neietsu