Heihe climate — normals and trends
Heihe (China) has a warm-summer humid continental, dry winter climate (Dwb) under the Köppen-Geiger classification. Its mean annual temperature is 0.6 °C and it receives 577 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 (21.5 °C on average) and the coldest is January (-23.5 °C). Rainfall peaks in July.
Heihe averages 197 frost days, 10 hot days (≥ 30 °C) and 83 rainy days per year.
Heihe has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.2 °C (on 25 June 2010) and the coldest -45.7 °C (on 12 January 1980).
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
HeiheHeilongjiang
- coords
- 50.24°, 127.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.6°C
Average daily high
6.1°C
Average daily low
-4.7°C
Annual rainfall
577mm
Sunshine / day
9.1h
Mean relative humidity
66%
Average peak wind
14.9km/h
Seasonal range
45.0°C
Frost days (< 0 °C)
197 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
83 d/yr
Annual snowfall
50.2 cm
Average feels-like high
3.1 °C
Average feels-like low
-8.2 °C
Average peak gust
30.7 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.35 · 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
39.2 °C
25 June 2010
Coldest day
-45.7 °C
12 January 1980
Wettest day
109 mm
27 June 1946
Windiest day
43.6 km/h
20 April 1998
Strongest gust
94.7 km/h
20 April 1998
Hottest feels-like
41.3 °C
8 July 2002
Coldest feels-like
-51.3 °C
12 January 1959
Snowiest day
19.2 cm
28 October 1966
Sunniest day
15.2 h
16 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 | -17.1 °C | +0.7 °C | 6 mm | +2 mm |
| Feb | -10.3 °C | +1.5 °C | 1 mm | -3 mm |
| Mar | -2.3 °C | -0.5 °C | 15 mm | +3 mm |
| Apr | 10.2 °C | +0.7 °C | 66 mm | +33 mm |
| May | 19.9 °C | +2.0 °C | 30 mm | -29 mm |
| Jun | 24.8 °C | +0.8 °C | 138 mm | +49 mm |
| Jul | 28.0 °C | +1.7 °C | 154 mm | +29 mm |
| Aug | 24.0 °C | 0.0 °C | 97 mm | -19 mm |
| Sep | 20.5 °C | +2.7 °C | 90 mm | +12 mm |
| Oct | 6.3 °C | -1.7 °C | 12 mm | -22 mm |
| Nov | -4.0 °C | +2.1 °C | 27 mm | +12 mm |
| Dec | -16.7 °C | -0.2 °C | 17 mm | +9 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 Heihe?
Heihe has a warm-summer humid continental, dry winter climate (Köppen Dwb). Over 1940-2025, the average annual temperature is 0.6 °C and it receives 577 mm of precipitation per year.
What is the hottest day ever recorded in Heihe?
The hottest day measured in Heihe between 1940 and 2025 was 25 June 2010, reaching 39.2 °C.
What is the coldest day in Heihe?
The coldest day measured in Heihe between 1940 and 2025 was 12 January 1980, at -45.7 °C.
Does it snow in Heihe?
Yes. Heihe gets on average 50.2 cm of snow per year and has around 197 frost days.
Has the climate of Heihe warmed?
Yes: Heihe warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Heihe?
The wettest day measured in Heihe between 1940 and 2025 was 27 June 1946, with 109 mm of rain in 24 hours.
What was the windiest day in Heihe?
The windiest day measured in Heihe between 1940 and 2025 was 20 April 1998, with winds reaching 43.6 km/h.
What is the warmest month in Heihe?
The warmest month in Heihe is July (21.5 °C on average); the coldest is January (-23.5 °C).
How much does it rain in Heihe?
Heihe receives on average 577 mm of precipitation per year, spread over about 83 rainy days.
Is it sunny in Heihe?
Heihe 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 Heihe?
The heaviest 24-hour snowfall measured in Heihe between 1940 and 2025 was 28 October 1966, with 19.2 cm.
Are there tropical nights in Heihe?
Yes: Heihe has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Heihe?
In Heihe, between 1940 and 2025, the highest apparent temperature reached 41.3 °C on 8 July 2002, and the lowest was -51.3 °C on 12 January 1959.
Compare Heihe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Heihe