Hecun climate — normals and trends
Hecun (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 12.6 °C and it receives 757 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 (25.6 °C on average) and the coldest is January (-2.3 °C). Rainfall peaks in July.
Hecun averages 110 frost days, 50 hot days (≥ 30 °C) and 84 rainy days per year.
Hecun has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 122 to 98 per year over the period.
The hottest day of the period reached 40.8 °C (on 25 June 2009) and the coldest -26.1 °C (on 17 January 1958).
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
HecunHebei
- coords
- 36.53°, 114.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.6°C
Average daily high
18.1°C
Average daily low
7.6°C
Annual rainfall
757mm
Sunshine / day
9.2h
Mean relative humidity
63%
Average peak wind
14.2km/h
Seasonal range
27.9°C
Frost days (< 0 °C)
110 d/yr
Hot days (≥ 30 °C)
50 d/yr
Rainy days (≥ 1 mm)
84 d/yr
Annual snowfall
25.5 cm
Average feels-like high
17.0 °C
Average feels-like low
5.8 °C
Average peak gust
31.0 km/h
Tropical nights (≥ 20 °C)
53 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
40.8 °C
25 June 2009
Coldest day
-26.1 °C
17 January 1958
Wettest day
257 mm
21 July 2021
Windiest day
42.1 km/h
19 April 2001
Strongest gust
92.5 km/h
20 March 2010
Hottest feels-like
44.2 °C
1 August 1969
Coldest feels-like
-30.9 °C
17 January 1958
Snowiest day
16.8 cm
28 February 1945
Sunniest day
14.2 h
24 June 1945
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 | +3.2 °C | 5 mm | -1 mm |
| Feb | 7.9 °C | +1.6 °C | 4 mm | -10 mm |
| Mar | 16.1 °C | +3.1 °C | 29 mm | +7 mm |
| Apr | 24.9 °C | +4.6 °C | 9 mm | -29 mm |
| May | 26.8 °C | +1.0 °C | 57 mm | +3 mm |
| Jun | 32.2 °C | +2.4 °C | 42 mm | -37 mm |
| Jul | 32.9 °C | +3.1 °C | 74 mm | -129 mm |
| Aug | 31.6 °C | +3.5 °C | 99 mm | -88 mm |
| Sep | 25.8 °C | +1.2 °C | 74 mm | -9 mm |
| Oct | 16.0 °C | -3.4 °C | 146 mm | +104 mm |
| Nov | 16.0 °C | +4.0 °C | 12 mm | -11 mm |
| Dec | 8.0 °C | +2.9 °C | 5 mm | -2 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 Hecun?
Hecun has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 12.6 °C and it receives 757 mm of precipitation per year.
What is the hottest day ever recorded in Hecun?
The hottest day measured in Hecun between 1940 and 2025 was 25 June 2009, reaching 40.8 °C.
What is the coldest day in Hecun?
The coldest day measured in Hecun between 1940 and 2025 was 17 January 1958, at -26.1 °C.
Does it snow in Hecun?
Yes. Hecun gets on average 25.5 cm of snow per year and has around 110 frost days.
Has the climate of Hecun warmed?
Yes: Hecun warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hecun?
The wettest day measured in Hecun between 1940 and 2025 was 21 July 2021, with 257 mm of rain in 24 hours.
What was the windiest day in Hecun?
The windiest day measured in Hecun between 1940 and 2025 was 19 April 2001, with winds reaching 42.1 km/h.
What is the warmest month in Hecun?
The warmest month in Hecun is July (25.6 °C on average); the coldest is January (-2.3 °C).
How much does it rain in Hecun?
Hecun receives on average 757 mm of precipitation per year, spread over about 84 rainy days.
Is it sunny in Hecun?
Hecun gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
What is the biggest single-day snowfall in Hecun?
The heaviest 24-hour snowfall measured in Hecun between 1940 and 2025 was 28 February 1945, with 16.8 cm.
Are there tropical nights in Hecun?
Yes: Hecun has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hecun?
In Hecun, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 1 August 1969, and the lowest was -30.9 °C on 17 January 1958.
Compare Hecun with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hecun