Zhenzhou climate — normals and trends
Zhenzhou (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.7 °C and it receives 1,275 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 (2.5 °C). Rainfall peaks in July.
Zhenzhou averages 46 frost days, 61 hot days (≥ 30 °C) and 117 rainy days per year.
Zhenzhou 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 57 to 35 per year over the period.
The hottest day of the period reached 40.1 °C (on 11 August 1946) and the coldest -20.4 °C (on 11 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
ZhenzhouJiangsu
- coords
- 32.28°, 119.17°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.7°C
Average daily high
19.8°C
Average daily low
12.1°C
Annual rainfall
1,275mm
Sunshine / day
7.9h
Mean relative humidity
76%
Average peak wind
15.4km/h
Seasonal range
25.5°C
Frost days (< 0 °C)
46 d/yr
Hot days (≥ 30 °C)
61 d/yr
Rainy days (≥ 1 mm)
117 d/yr
Annual snowfall
14.3 cm
Average feels-like high
19.9 °C
Average feels-like low
11.4 °C
Average peak gust
31.6 km/h
Tropical nights (≥ 20 °C)
99 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.31 · 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
40.1 °C
11 August 1946
Coldest day
-20.4 °C
11 January 1955
Wettest day
235 mm
6 July 2013
Windiest day
47.0 km/h
17 August 2018
Strongest gust
97.2 km/h
17 August 2018
Hottest feels-like
47.9 °C
1 August 2003
Coldest feels-like
-25.2 °C
11 January 1955
Snowiest day
22.8 cm
18 January 1984
Sunniest day
14.0 h
30 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 | 10.3 °C | +3.8 °C | 8 mm | -33 mm |
| Feb | 9.8 °C | +1.3 °C | 12 mm | -43 mm |
| Mar | 17.0 °C | +3.4 °C | 38 mm | -42 mm |
| Apr | 25.3 °C | +5.5 °C | 45 mm | -56 mm |
| May | 26.7 °C | +1.9 °C | 126 mm | -5 mm |
| Jun | 28.7 °C | +0.5 °C | 255 mm | +33 mm |
| Jul | 33.6 °C | +2.2 °C | 142 mm | -100 mm |
| Aug | 33.4 °C | +2.2 °C | 171 mm | +24 mm |
| Sep | 28.9 °C | +2.1 °C | 259 mm | +142 mm |
| Oct | 23.1 °C | +1.4 °C | 74 mm | +16 mm |
| Nov | 17.5 °C | +1.8 °C | 14 mm | -37 mm |
| Dec | 12.1 °C | +2.9 °C | 6 mm | -25 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 Zhenzhou?
Zhenzhou has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 1,275 mm of precipitation per year.
What is the hottest day ever recorded in Zhenzhou?
The hottest day measured in Zhenzhou between 1940 and 2025 was 11 August 1946, reaching 40.1 °C.
What is the coldest day in Zhenzhou?
The coldest day measured in Zhenzhou between 1940 and 2025 was 11 January 1955, at -20.4 °C.
Does it snow in Zhenzhou?
Yes. Zhenzhou gets on average 14.3 cm of snow per year and has around 46 frost days.
Has the climate of Zhenzhou warmed?
Yes: Zhenzhou warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zhenzhou?
The wettest day measured in Zhenzhou between 1940 and 2025 was 6 July 2013, with 235 mm of rain in 24 hours.
What was the windiest day in Zhenzhou?
The windiest day measured in Zhenzhou between 1940 and 2025 was 17 August 2018, with winds reaching 47.0 km/h.
What is the warmest month in Zhenzhou?
The warmest month in Zhenzhou is July (28.0 °C on average); the coldest is January (2.5 °C).
How much does it rain in Zhenzhou?
Zhenzhou receives on average 1,275 mm of precipitation per year, spread over about 117 rainy days.
Is it sunny in Zhenzhou?
Zhenzhou 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 Zhenzhou?
The heaviest 24-hour snowfall measured in Zhenzhou between 1940 and 2025 was 18 January 1984, with 22.8 cm.
Are there tropical nights in Zhenzhou?
Yes: Zhenzhou has on average 99 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zhenzhou?
In Zhenzhou, between 1940 and 2025, the highest apparent temperature reached 47.9 °C on 1 August 2003, and the lowest was -25.2 °C on 11 January 1955.
Compare Zhenzhou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zhenzhou