Dongkan climate — normals and trends
Dongkan (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 14.6 °C and it receives 1,048 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 (26.9 °C on average) and the coldest is January (1.1 °C). Rainfall peaks in July.
Dongkan averages 67 frost days, 50 hot days (≥ 30 °C) and 98 rainy days per year.
Dongkan has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 79 to 55 per year over the period.
The hottest day of the period reached 39.7 °C (on 8 July 1978) and the coldest -17.7 °C (on 6 January 1955).
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
DongkanJiangsu
- coords
- 34.00°, 119.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.6°C
Average daily high
19.0°C
Average daily low
10.5°C
Annual rainfall
1,048mm
Sunshine / day
8.3h
Mean relative humidity
73%
Average peak wind
16.2km/h
Seasonal range
25.8°C
Frost days (< 0 °C)
67 d/yr
Hot days (≥ 30 °C)
50 d/yr
Rainy days (≥ 1 mm)
98 d/yr
Annual snowfall
9.1 cm
Average feels-like high
18.6 °C
Average feels-like low
9.5 °C
Average peak gust
33.0 km/h
Tropical nights (≥ 20 °C)
83 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.37 · 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
39.7 °C
8 July 1978
Coldest day
-17.7 °C
6 January 1955
Wettest day
175 mm
11 July 1954
Windiest day
50.5 km/h
1 August 1940
Strongest gust
93.2 km/h
1 September 1990
Hottest feels-like
46.2 °C
27 July 2017
Coldest feels-like
-22.8 °C
6 January 1955
Snowiest day
15.4 cm
16 February 1981
Sunniest day
14.0 h
27 May 1940
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 | 8.7 °C | +3.2 °C | 3 mm | -21 mm |
| Feb | 8.6 °C | +1.2 °C | 8 mm | -25 mm |
| Mar | 15.6 °C | +3.0 °C | 49 mm | +1 mm |
| Apr | 23.4 °C | +4.4 °C | 15 mm | -49 mm |
| May | 26.9 °C | +2.4 °C | 43 mm | -42 mm |
| Jun | 30.3 °C | +1.8 °C | 239 mm | +108 mm |
| Jul | 34.1 °C | +3.7 °C | 58 mm | -211 mm |
| Aug | 32.5 °C | +2.4 °C | 215 mm | +56 mm |
| Sep | 27.3 °C | +1.3 °C | 234 mm | +111 mm |
| Oct | 21.6 °C | +0.3 °C | 110 mm | +60 mm |
| Nov | 17.1 °C | +2.3 °C | 15 mm | -25 mm |
| Dec | 10.6 °C | +2.5 °C | 11 mm | -12 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 Dongkan?
Dongkan has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 14.6 °C and it receives 1,048 mm of precipitation per year.
What is the hottest day ever recorded in Dongkan?
The hottest day measured in Dongkan between 1940 and 2025 was 8 July 1978, reaching 39.7 °C.
What is the coldest day in Dongkan?
The coldest day measured in Dongkan between 1940 and 2025 was 6 January 1955, at -17.7 °C.
Does it snow in Dongkan?
Yes. Dongkan gets on average 9.1 cm of snow per year and has around 67 frost days.
Has the climate of Dongkan warmed?
Yes: Dongkan warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dongkan?
The wettest day measured in Dongkan between 1940 and 2025 was 11 July 1954, with 175 mm of rain in 24 hours.
What was the windiest day in Dongkan?
The windiest day measured in Dongkan between 1940 and 2025 was 1 August 1940, with winds reaching 50.5 km/h.
What is the warmest month in Dongkan?
The warmest month in Dongkan is July (26.9 °C on average); the coldest is January (1.1 °C).
How much does it rain in Dongkan?
Dongkan receives on average 1,048 mm of precipitation per year, spread over about 98 rainy days.
Is it sunny in Dongkan?
Dongkan gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dongkan?
The heaviest 24-hour snowfall measured in Dongkan between 1940 and 2025 was 16 February 1981, with 15.4 cm.
Are there tropical nights in Dongkan?
Yes: Dongkan has on average 83 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dongkan?
In Dongkan, between 1940 and 2025, the highest apparent temperature reached 46.2 °C on 27 July 2017, and the lowest was -22.8 °C on 6 January 1955.
Compare Dongkan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dongkan