Kaiyuan climate — normals and trends
Kaiyuan (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 7.4 °C and it receives 852 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 July (24.3 °C on average) and the coldest is January (-13.3 °C). Rainfall peaks in July.
Kaiyuan averages 158 frost days, 21 hot days (≥ 30 °C) and 91 rainy days per year.
Kaiyuan 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 164 to 152 per year over the period.
The hottest day of the period reached 39.1 °C (on 3 August 2018) and the coldest -37.0 °C (on 11 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
KaiyuanLiaoning
- coords
- 42.53°, 124.04°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.4°C
Average daily high
12.7°C
Average daily low
2.2°C
Annual rainfall
852mm
Sunshine / day
9.1h
Mean relative humidity
64%
Average peak wind
18.2km/h
Seasonal range
37.6°C
Frost days (< 0 °C)
158 d/yr
Hot days (≥ 30 °C)
21 d/yr
Rainy days (≥ 1 mm)
91 d/yr
Annual snowfall
38.6 cm
Average feels-like high
10.2 °C
Average feels-like low
-0.7 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
37 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.51 · 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
39.1 °C
3 August 2018
Coldest day
-37.0 °C
11 January 2001
Wettest day
186 mm
29 July 1995
Windiest day
50.6 km/h
4 April 1971
Strongest gust
96.5 km/h
4 April 1971
Hottest feels-like
42.8 °C
30 July 2018
Coldest feels-like
-43.1 °C
11 January 2001
Snowiest day
26.0 cm
4 March 2007
Sunniest day
14.3 h
25 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 | -3.5 °C | +4.0 °C | 24 mm | +16 mm |
| Feb | -2.6 °C | +0.4 °C | 1 mm | -9 mm |
| Mar | 8.5 °C | +3.0 °C | 6 mm | -18 mm |
| Apr | 16.4 °C | +1.1 °C | 77 mm | +27 mm |
| May | 22.7 °C | +0.4 °C | 61 mm | -13 mm |
| Jun | 28.5 °C | +2.2 °C | 85 mm | -32 mm |
| Jul | 30.2 °C | +1.8 °C | 212 mm | +8 mm |
| Aug | 28.3 °C | +0.8 °C | 233 mm | +42 mm |
| Sep | 26.0 °C | +3.3 °C | 59 mm | -23 mm |
| Oct | 14.5 °C | -0.5 °C | 7 mm | -45 mm |
| Nov | 7.8 °C | +3.8 °C | 10 mm | -18 mm |
| Dec | -3.3 °C | +1.4 °C | 13 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 Kaiyuan?
Kaiyuan has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 7.4 °C and it receives 852 mm of precipitation per year.
What is the hottest day ever recorded in Kaiyuan?
The hottest day measured in Kaiyuan between 1940 and 2025 was 3 August 2018, reaching 39.1 °C.
What is the coldest day in Kaiyuan?
The coldest day measured in Kaiyuan between 1940 and 2025 was 11 January 2001, at -37.0 °C.
Does it snow in Kaiyuan?
Yes. Kaiyuan gets on average 38.6 cm of snow per year and has around 158 frost days.
Has the climate of Kaiyuan warmed?
Yes: Kaiyuan warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kaiyuan?
The wettest day measured in Kaiyuan between 1940 and 2025 was 29 July 1995, with 186 mm of rain in 24 hours.
What was the windiest day in Kaiyuan?
The windiest day measured in Kaiyuan between 1940 and 2025 was 4 April 1971, with winds reaching 50.6 km/h.
What is the warmest month in Kaiyuan?
The warmest month in Kaiyuan is July (24.3 °C on average); the coldest is January (-13.3 °C).
How much does it rain in Kaiyuan?
Kaiyuan receives on average 852 mm of precipitation per year, spread over about 91 rainy days.
Is it sunny in Kaiyuan?
Kaiyuan gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kaiyuan?
The heaviest 24-hour snowfall measured in Kaiyuan between 1940 and 2025 was 4 March 2007, with 26.0 cm.
Are there tropical nights in Kaiyuan?
Yes: Kaiyuan has on average 37 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kaiyuan?
In Kaiyuan, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 30 July 2018, and the lowest was -43.1 °C on 11 January 2001.
Compare Kaiyuan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kaiyuan