Haidong climate — normals and trends
Haidong (China) has a warm-summer humid continental, dry winter climate (Dwb) under the Köppen-Geiger classification. Its mean annual temperature is 3.5 °C and it receives 590 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 (15.8 °C on average) and the coldest is January (-10.7 °C). Rainfall peaks in August.
Haidong averages 188 frost days, 0 hot days (≥ 30 °C) and 114 rainy days per year.
Haidong has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 198 to 178 per year over the period.
The hottest day of the period reached 33.1 °C (on 30 July 2010) and the coldest -36.7 °C (on 19 December 1947).
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
HaidongQinghai
- coords
- 36.48°, 102.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.5°C
Average daily high
9.7°C
Average daily low
-2.3°C
Annual rainfall
590mm
Sunshine / day
9.7h
Mean relative humidity
60%
Average peak wind
11.9km/h
Seasonal range
26.5°C
Frost days (< 0 °C)
188 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
114 d/yr
Annual snowfall
74.2 cm
Average feels-like high
7.1 °C
Average feels-like low
-5.7 °C
Average peak gust
32.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.40 · 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
33.1 °C
30 July 2010
Coldest day
-36.7 °C
19 December 1947
Wettest day
73 mm
17 July 1946
Windiest day
30.3 km/h
6 May 2015
Strongest gust
82.8 km/h
6 May 2015
Hottest feels-like
33.1 °C
30 July 2010
Coldest feels-like
-42.0 °C
19 December 1947
Snowiest day
13.8 cm
11 October 2014
Sunniest day
14.0 h
6 July 1978
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 | -1.0 °C | +1.7 °C | 15 mm | +10 mm |
| Feb | -0.2 °C | -0.3 °C | 8 mm | -2 mm |
| Mar | 5.0 °C | -0.7 °C | 17 mm | -6 mm |
| Apr | 13.8 °C | +2.3 °C | 25 mm | -18 mm |
| May | 18.9 °C | +3.2 °C | 49 mm | -13 mm |
| Jun | 20.0 °C | +1.3 °C | 91 mm | +17 mm |
| Jul | 23.6 °C | +3.0 °C | 82 mm | -21 mm |
| Aug | 20.3 °C | +0.4 °C | 171 mm | +66 mm |
| Sep | 18.2 °C | +2.8 °C | 77 mm | -17 mm |
| Oct | 10.9 °C | +0.6 °C | 86 mm | +33 mm |
| Nov | 5.2 °C | +1.9 °C | 21 mm | +7 mm |
| Dec | 2.5 °C | +4.2 °C | 8 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 Haidong?
Haidong has a warm-summer humid continental, dry winter climate (Köppen Dwb). Over 1940-2025, the average annual temperature is 3.5 °C and it receives 590 mm of precipitation per year.
What is the hottest day ever recorded in Haidong?
The hottest day measured in Haidong between 1940 and 2025 was 30 July 2010, reaching 33.1 °C.
What is the coldest day in Haidong?
The coldest day measured in Haidong between 1940 and 2025 was 19 December 1947, at -36.7 °C.
Does it snow in Haidong?
Yes. Haidong gets on average 74.2 cm of snow per year and has around 188 frost days.
Has the climate of Haidong warmed?
Yes: Haidong warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Haidong?
The wettest day measured in Haidong between 1940 and 2025 was 17 July 1946, with 73 mm of rain in 24 hours.
What was the windiest day in Haidong?
The windiest day measured in Haidong between 1940 and 2025 was 6 May 2015, with winds reaching 30.3 km/h.
What is the warmest month in Haidong?
The warmest month in Haidong is July (15.8 °C on average); the coldest is January (-10.7 °C).
How much does it rain in Haidong?
Haidong receives on average 590 mm of precipitation per year, spread over about 114 rainy days.
Is it sunny in Haidong?
Haidong gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in Haidong?
The heaviest 24-hour snowfall measured in Haidong between 1940 and 2025 was 11 October 2014, with 13.8 cm.
Are there tropical nights in Haidong?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Haidong.
What was the most extreme apparent temperature in Haidong?
In Haidong, between 1940 and 2025, the highest apparent temperature reached 33.1 °C on 30 July 2010, and the lowest was -42.0 °C on 19 December 1947.
Compare Haidong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Haidong