Langtoucun climate — normals and trends
Langtoucun (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 9.4 °C and it receives 1,028 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 (24.0 °C on average) and the coldest is January (-7.3 °C). Rainfall peaks in July.
Langtoucun averages 130 frost days, 5 hot days (≥ 30 °C) and 92 rainy days per year.
Langtoucun 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 139 to 121 per year over the period.
The hottest day of the period reached 36.8 °C (on 1 August 2018) and the coldest -29.2 °C (on 25 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
LangtoucunLiaoning
- coords
- 40.04°, 124.34°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.4°C
Average daily high
13.5°C
Average daily low
5.5°C
Annual rainfall
1,028mm
Sunshine / day
9.0h
Mean relative humidity
71%
Average peak wind
17.9km/h
Seasonal range
31.3°C
Frost days (< 0 °C)
130 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
92 d/yr
Annual snowfall
30.0 cm
Average feels-like high
12.0 °C
Average feels-like low
3.0 °C
Average peak gust
35.0 km/h
Tropical nights (≥ 20 °C)
47 d/yr
Solar radiation
14.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.57 · 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
36.8 °C
1 August 2018
Coldest day
-29.2 °C
25 January 1941
Wettest day
181 mm
5 September 1956
Windiest day
51.3 km/h
3 September 1969
Strongest gust
105.8 km/h
16 August 1994
Hottest feels-like
45.2 °C
1 August 2018
Coldest feels-like
-34.8 °C
25 January 1941
Snowiest day
23.6 cm
2 March 1971
Sunniest day
14.2 h
21 June 1950
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 | 0.3 °C | +2.8 °C | 17 mm | +5 mm |
| Feb | 0.1 °C | -0.4 °C | 11 mm | -6 mm |
| Mar | 8.7 °C | +2.2 °C | 7 mm | -21 mm |
| Apr | 14.6 °C | +1.1 °C | 79 mm | +21 mm |
| May | 19.7 °C | +0.6 °C | 68 mm | -15 mm |
| Jun | 25.5 °C | +2.3 °C | 105 mm | -6 mm |
| Jul | 28.9 °C | +2.6 °C | 205 mm | -55 mm |
| Aug | 28.4 °C | +1.2 °C | 437 mm | +203 mm |
| Sep | 26.3 °C | +2.7 °C | 99 mm | +3 mm |
| Oct | 17.1 °C | +0.3 °C | 89 mm | +28 mm |
| Nov | 10.8 °C | +2.8 °C | 23 mm | -24 mm |
| Dec | 1.0 °C | +0.9 °C | 21 mm | +1 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 Langtoucun?
Langtoucun has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 9.4 °C and it receives 1,028 mm of precipitation per year.
What is the hottest day ever recorded in Langtoucun?
The hottest day measured in Langtoucun between 1940 and 2025 was 1 August 2018, reaching 36.8 °C.
What is the coldest day in Langtoucun?
The coldest day measured in Langtoucun between 1940 and 2025 was 25 January 1941, at -29.2 °C.
Does it snow in Langtoucun?
Yes. Langtoucun gets on average 30.0 cm of snow per year and has around 130 frost days.
Has the climate of Langtoucun warmed?
Yes: Langtoucun warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Langtoucun?
The wettest day measured in Langtoucun between 1940 and 2025 was 5 September 1956, with 181 mm of rain in 24 hours.
What was the windiest day in Langtoucun?
The windiest day measured in Langtoucun between 1940 and 2025 was 3 September 1969, with winds reaching 51.3 km/h.
What is the warmest month in Langtoucun?
The warmest month in Langtoucun is August (24.0 °C on average); the coldest is January (-7.3 °C).
How much does it rain in Langtoucun?
Langtoucun receives on average 1,028 mm of precipitation per year, spread over about 92 rainy days.
Is it sunny in Langtoucun?
Langtoucun gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Langtoucun?
The heaviest 24-hour snowfall measured in Langtoucun between 1940 and 2025 was 2 March 1971, with 23.6 cm.
Are there tropical nights in Langtoucun?
Yes: Langtoucun has on average 47 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Langtoucun?
In Langtoucun, between 1940 and 2025, the highest apparent temperature reached 45.2 °C on 1 August 2018, and the lowest was -34.8 °C on 25 January 1941.
Compare Langtoucun with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Langtoucun