Zhenjiang climate — normals and trends

Q: What is the climate of Zhenjiang?

Zhenjiang has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 1,276 mm of precipitation per year.

Q: What is the hottest day ever recorded in Zhenjiang?

The hottest day measured in Zhenjiang between 1940 and 2025 was 5 August 1946, reaching 40.2 °C.

Q: What is the coldest day in Zhenjiang?

The coldest day measured in Zhenjiang between 1940 and 2025 was 17 January 1945, at -17.0 °C.

Q: Does it snow in Zhenjiang?

Yes. Zhenjiang gets on average 13.2 cm of snow per year and has around 45 frost days.

Q: Has the climate of Zhenjiang warmed?

Yes: Zhenjiang warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Zhenjiang?

The wettest day measured in Zhenjiang between 1940 and 2025 was 6 July 2013, with 190 mm of rain in 24 hours.

Q: What was the windiest day in Zhenjiang?

The windiest day measured in Zhenjiang between 1940 and 2025 was 17 August 2018, with winds reaching 48.3 km/h.

Q: What is the warmest month in Zhenjiang?

The warmest month in Zhenjiang is July (28.0 °C on average); the coldest is January (2.6 °C).

Q: How much does it rain in Zhenjiang?

Zhenjiang receives on average 1,276 mm of precipitation per year, spread over about 116 rainy days.

Q: Is it sunny in Zhenjiang?

Zhenjiang gets on average 7.9 hours of sunshine per day, roughly 2,884 hours per year over 1940-2025.

Zhenjiang (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.7 °C and it receives 1,276 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 (28.0 °C on average) and the coldest is January (2.6 °C). Rainfall peaks in July.

Zhenjiang averages 45 frost days, 61 hot days (≥ 30 °C) and 116 rainy days per year.

Zhenjiang has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The number of frost days there went from about 56 to 34 per year over the period.

The hottest day of the period reached 40.2 °C (on 5 August 1946) and the coldest -17.0 °C (on 17 January 1945).

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

ZhenjiangJiangsu

coords: 32.21°, 119.46°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

15.7°C

Average daily high

19.8°C

Average daily low

12.2°C

Annual rainfall

1,276mm

Sunshine / day

7.9h

Mean relative humidity

76%

Average peak wind

15.5km/h

Seasonal range

25.4°C

Frost days (< 0 °C)

45 d/yr

Hot days (≥ 30 °C)

61 d/yr

Rainy days (≥ 1 mm)

116 d/yr

Annual snowfall

13.2 cm

Average feels-like high

20.0 °C

Average feels-like low

11.5 °C

Average peak gust

31.5 km/h

Tropical nights (≥ 20 °C)

99 d/yr

Solar radiation

14.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.32 · p = < 0.001

19402025

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

40.2 °C

5 August 1946

Coldest day

-17.0 °C

17 January 1945

Wettest day

190 mm

6 July 2013

Windiest day

48.3 km/h

17 August 2018

Strongest gust

96.5 km/h

7 August 2005

Hottest feels-like

48.6 °C

1 August 2003

Coldest feels-like

-22.5 °C

17 January 1945

Snowiest day

21.6 cm

18 January 1984

Sunniest day

14.0 h

30 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.0 °C5 July 2025	-7.6 °C9 February 2025	17.8 °C	1,155 mm	97	35
2024	39.1 °C4 August 2024	-6.3 °C23 January 2024	17.2 °C	1,300 mm	86	45
2023	36.4 °C12 August 2023	-8.6 °C25 January 2023	16.9 °C	1,312 mm	81	34
2022	39.8 °C14 August 2022	-4.9 °C25 December 2022	17.1 °C	849 mm	84	36
2021	37.0 °C14 July 2021	-8.3 °C8 January 2021	17.2 °C	1,168 mm	85	27
2020	36.7 °C15 August 2020	-7.3 °C31 December 2020	16.8 °C	1,372 mm	57	21
2019	37.4 °C29 July 2019	-3.7 °C31 December 2019	16.9 °C	702 mm	67	23
2018	35.5 °C10 August 2018	-7.7 °C29 January 2018	16.7 °C	1,251 mm	73	40
2017	38.5 °C23 July 2017	-3.9 °C21 January 2017	16.8 °C	1,203 mm	66	23
2016	37.7 °C25 July 2016	-9.6 °C24 January 2016	16.6 °C	1,983 mm	65	41
2015	36.3 °C3 August 2015	-5.5 °C9 February 2015	16.2 °C	1,548 mm	37	31
2014	35.9 °C22 July 2014	-5.2 °C22 January 2014	16.2 °C	1,228 mm	38	33
2013	37.9 °C6 August 2013	-5.6 °C4 January 2013	16.6 °C	1,024 mm	81	46
2012	36.9 °C5 July 2012	-6.1 °C23 January 2012	16.0 °C	1,008 mm	71	42
2011	37.0 °C9 June 2011	-7.8 °C16 January 2011	16.0 °C	1,142 mm	67	61
2010	38.0 °C12 August 2010	-5.5 °C14 January 2010	16.2 °C	1,017 mm	79	41
2009	36.4 °C17 July 2009	-7.8 °C24 January 2009	16.4 °C	1,307 mm	73	36
2008	36.1 °C5 July 2008	-7.5 °C22 December 2008	16.2 °C	1,060 mm	60	55
2007	36.6 °C29 July 2007	-3.0 °C9 January 2007	17.0 °C	1,041 mm	72	23
2006	36.5 °C31 July 2006	-4.9 °C4 February 2006	16.8 °C	1,081 mm	81	31
2005	36.9 °C23 June 2005	-6.2 °C1 January 2005	16.3 °C	1,054 mm	79	61
2004	36.7 °C21 July 2004	-6.2 °C25 January 2004	16.8 °C	943 mm	70	28
2003	38.7 °C1 August 2003	-6.2 °C5 January 2003	16.0 °C	1,378 mm	57	42
2002	37.5 °C15 July 2002	-5.0 °C27 December 2002	16.7 °C	1,408 mm	70	25
2001	37.7 °C2 July 2001	-5.4 °C15 January 2001	16.4 °C	1,024 mm	51	30
2000	35.5 °C22 July 2000	-7.1 °C25 January 2000	16.3 °C	1,135 mm	74	28
1999	34.8 °C10 September 1999	-6.3 °C22 December 1999	15.9 °C	1,543 mm	46	26
1998	36.4 °C10 August 1998	-6.8 °C19 January 1998	16.7 °C	1,401 mm	61	28
1997	36.1 °C5 June 1997	-5.5 °C8 January 1997	16.2 °C	1,080 mm	71	38
1996	35.6 °C23 July 1996	-5.5 °C18 February 1996	15.4 °C	1,535 mm	46	47
1995	36.1 °C13 August 1995	-4.7 °C5 February 1995	15.7 °C	878 mm	59	39
1994	36.3 °C5 July 1994	-4.8 °C19 January 1994	16.7 °C	980 mm	86	26
1993	34.7 °C12 July 1993	-7.7 °C17 January 1993	15.1 °C	1,553 mm	38	49
1992	37.2 °C31 July 1992	-4.7 °C15 January 1992	15.3 °C	1,056 mm	48	46
1991	36.2 °C23 July 1991	-9.0 °C29 December 1991	15.1 °C	1,903 mm	44	34
1990	36.2 °C24 July 1990	-8.7 °C1 February 1990	16.1 °C	1,320 mm	79	40
1989	34.8 °C11 August 1989	-4.8 °C15 January 1989	15.3 °C	1,463 mm	34	28
1988	37.5 °C18 July 1988	-5.0 °C24 January 1988	15.3 °C	1,053 mm	51	49
1987	34.7 °C4 August 1987	-6.7 °C4 February 1987	15.2 °C	1,801 mm	44	47
1986	35.7 °C29 July 1986	-7.7 °C5 January 1986	15.1 °C	1,240 mm	54	51
1985	35.5 °C7 August 1985	-6.2 °C9 December 1985	15.1 °C	1,305 mm	61	51
1984	35.1 °C26 July 1984	-10.5 °C7 February 1984	14.8 °C	1,308 mm	54	64
1983	36.7 °C3 August 1983	-6.9 °C19 February 1983	15.4 °C	1,430 mm	49	47
1982	34.5 °C25 May 1982	-7.5 °C19 January 1982	15.5 °C	1,201 mm	47	43
1981	36.2 °C21 June 1981	-7.0 °C3 January 1981	15.1 °C	1,328 mm	56	57
1980	36.6 °C27 July 1980	-10.0 °C30 January 1980	14.5 °C	1,242 mm	34	52
1979	36.0 °C6 August 1979	-10.0 °C16 January 1979	15.7 °C	1,108 mm	57	44
1978	38.2 °C8 July 1978	-7.3 °C17 January 1978	15.9 °C	673 mm	82	52
1977	35.9 °C6 August 1977	-10.9 °C13 January 1977	15.2 °C	1,641 mm	43	57
1976	36.9 °C5 August 1976	-7.3 °C26 December 1976	14.9 °C	1,017 mm	43	44
1975	34.8 °C19 July 1975	-4.7 °C23 December 1975	15.6 °C	1,591 mm	59	50
1974	35.4 °C23 July 1974	-5.4 °C13 January 1974	15.1 °C	1,316 mm	44	58
1973	34.6 °C5 August 1973	-7.6 °C26 December 1973	15.5 °C	1,056 mm	59	40
1972	35.5 °C8 July 1972	-6.5 °C27 January 1972	14.7 °C	1,377 mm	49	65
1971	37.0 °C1 August 1971	-6.9 °C5 January 1971	15.3 °C	1,070 mm	62	62
1970	34.8 °C31 July 1970	-9.7 °C5 January 1970	14.9 °C	1,573 mm	43	52
1969	36.2 °C17 August 1969	-12.4 °C6 February 1969	14.7 °C	1,349 mm	57	73
1968	33.7 °C20 July 1968	-7.0 °C15 January 1968	15.2 °C	1,108 mm	55	64
1967	37.3 °C27 August 1967	-9.5 °C4 January 1967	15.2 °C	1,238 mm	82	82
1966	38.1 °C10 August 1966	-9.9 °C27 December 1966	16.0 °C	1,122 mm	60	37
1965	34.2 °C20 July 1965	-7.0 °C17 December 1965	15.2 °C	1,176 mm	49	53
1964	37.1 °C16 July 1964	-7.1 °C18 February 1964	15.7 °C	1,296 mm	77	47
1963	35.4 °C14 July 1963	-8.5 °C4 February 1963	15.2 °C	1,446 mm	56	58
1962	36.5 °C19 July 1962	-5.9 °C1 February 1962	15.4 °C	1,522 mm	43	53
1961	36.2 °C23 July 1961	-6.0 °C12 January 1961	16.2 °C	1,313 mm	73	35
1960	35.6 °C14 July 1960	-6.7 °C19 December 1960	15.6 °C	1,423 mm	53	39
1959	38.6 °C21 August 1959	-8.5 °C17 January 1959	15.7 °C	1,013 mm	67	42
1958	36.7 °C22 July 1958	-10.6 °C16 January 1958	15.2 °C	1,119 mm	66	50
1957	36.2 °C22 July 1957	-15.4 °C13 February 1957	14.7 °C	1,759 mm	44	55
1956	36.3 °C23 July 1956	-13.1 °C27 January 1956	14.9 °C	1,776 mm	63	68
1955	34.8 °C11 September 1955	-17.0 °C11 January 1955	15.5 °C	1,258 mm	66	42
1954	36.4 °C13 August 1954	-10.3 °C1 February 1954	15.3 °C	2,068 mm	47	50
1953	37.9 °C28 July 1953	-9.1 °C18 January 1953	16.1 °C	1,518 mm	66	37
1952	33.8 °C2 August 1952	-7.7 °C19 February 1952	15.4 °C	1,608 mm	55	42
1951	36.9 °C8 August 1951	-10.3 °C13 January 1951	15.4 °C	1,735 mm	50	51
1950	35.6 °C14 July 1950	-6.2 °C5 February 1950	15.7 °C	1,493 mm	51	43
1949	34.3 °C17 September 1949	-6.0 °C9 January 1949	15.9 °C	1,557 mm	44	40
1948	33.6 °C3 August 1948	-9.4 °C26 January 1948	16.2 °C	1,367 mm	57	40
1947	34.1 °C29 July 1947	-6.3 °C19 December 1947	15.6 °C	1,143 mm	62	45
1946	40.2 °C5 August 1946	-5.9 °C2 February 1946	17.2 °C	784 mm	110	51
1945	36.7 °C9 June 1945	-17.0 °C17 January 1945	15.3 °C	1,066 mm	74	70
1944	34.9 °C12 July 1944	-6.6 °C20 December 1944	16.0 °C	877 mm	80	64
1943	33.2 °C3 August 1943	-7.6 °C12 January 1943	15.4 °C	1,601 mm	24	55
1942	36.0 °C7 August 1942	-7.1 °C17 January 1942	15.7 °C	1,270 mm	56	55
1941	34.5 °C4 June 1941	-8.0 °C24 January 1941	16.1 °C	1,173 mm	50	44
1940	34.3 °C14 August 1940	-6.9 °C27 January 1940	15.8 °C	840 mm	66	54

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?

Year

Across the whole year

Average daily high

22.3 °C

+2.5 °C

Hot days (≥ 30 °C)

97 d/yr

+36

Frost days (< 0 °C)

35 d/yr

-10

Annual rainfall

1155 mm

-121 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	10.3 °C	+3.6 °C	7 mm	-34 mm
Feb	9.8 °C	+1.2 °C	10 mm	-44 mm
Mar	17.0 °C	+3.5 °C	37 mm	-43 mm
Apr	25.3 °C	+5.5 °C	41 mm	-60 mm
May	26.7 °C	+1.9 °C	128 mm	-3 mm
Jun	28.8 °C	+0.6 °C	263 mm	+40 mm
Jul	33.5 °C	+2.1 °C	172 mm	-71 mm
Aug	33.4 °C	+2.2 °C	174 mm	+27 mm
Sep	29.0 °C	+2.2 °C	235 mm	+117 mm
Oct	23.3 °C	+1.5 °C	72 mm	+14 mm
Nov	17.5 °C	+1.7 °C	11 mm	-39 mm
Dec	12.2 °C	+2.9 °C	5 mm	-26 mm

The year's extremes

Hottest day

38.0 °C

5 Jul 2025

Coldest day

-7.6 °C

9 Feb 2025

Wettest day

76.2 mm

30 Jul 2025

Windiest day

37.3 km/h

12 Apr 2025

Strongest gust

70.9 km/h

12 Apr 2025

Hottest feels-like

46.4 °C

5 Jul 2025

Coldest feels-like

-12.0 °C

9 Feb 2025

Sunniest day

14.0 h

16 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Zhenjiang?

Zhenjiang has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 1,276 mm of precipitation per year.

What is the hottest day ever recorded in Zhenjiang?

The hottest day measured in Zhenjiang between 1940 and 2025 was 5 August 1946, reaching 40.2 °C.

What is the coldest day in Zhenjiang?

The coldest day measured in Zhenjiang between 1940 and 2025 was 17 January 1945, at -17.0 °C.

Does it snow in Zhenjiang?

Yes. Zhenjiang gets on average 13.2 cm of snow per year and has around 45 frost days.

Has the climate of Zhenjiang warmed?

Yes: Zhenjiang warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Zhenjiang?

The wettest day measured in Zhenjiang between 1940 and 2025 was 6 July 2013, with 190 mm of rain in 24 hours.

What was the windiest day in Zhenjiang?

The windiest day measured in Zhenjiang between 1940 and 2025 was 17 August 2018, with winds reaching 48.3 km/h.

What is the warmest month in Zhenjiang?

The warmest month in Zhenjiang is July (28.0 °C on average); the coldest is January (2.6 °C).

How much does it rain in Zhenjiang?

Zhenjiang receives on average 1,276 mm of precipitation per year, spread over about 116 rainy days.

Is it sunny in Zhenjiang?

Zhenjiang gets on average 7.9 hours of sunshine per day, roughly 2,884 hours per year over 1940-2025.

What is the biggest single-day snowfall in Zhenjiang?

The heaviest 24-hour snowfall measured in Zhenjiang between 1940 and 2025 was 18 January 1984, with 21.6 cm.

Are there tropical nights in Zhenjiang?

Yes: Zhenjiang has on average 99 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Zhenjiang?

In Zhenjiang, between 1940 and 2025, the highest apparent temperature reached 48.6 °C on 1 August 2003, and the lowest was -22.5 °C on 17 January 1945.

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