Yangzhou climate — normals and trends
Yangzhou (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.6 °C and it receives 1,246 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 (27.8 °C on average) and the coldest is January (2.4 °C). Rainfall peaks in July.
Yangzhou averages 50 frost days, 60 hot days (≥ 30 °C) and 114 rainy days per year.
Yangzhou has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 61 to 39 per year over the period.
The hottest day of the period reached 40.4 °C (on 11 August 1946) and the coldest -16.8 °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
YangzhouJiangsu
- coords
- 32.40°, 119.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.6°C
Average daily high
19.8°C
Average daily low
11.8°C
Annual rainfall
1,246mm
Sunshine / day
8.0h
Mean relative humidity
75%
Average peak wind
15.6km/h
Seasonal range
25.4°C
Frost days (< 0 °C)
50 d/yr
Hot days (≥ 30 °C)
60 d/yr
Rainy days (≥ 1 mm)
114 d/yr
Annual snowfall
12.9 cm
Average feels-like high
19.8 °C
Average feels-like low
11.0 °C
Average peak gust
31.8 km/h
Tropical nights (≥ 20 °C)
95 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 = 0.33 · 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
40.4 °C
11 August 1946
Coldest day
-16.8 °C
17 January 1945
Wettest day
196 mm
25 June 1979
Windiest day
45.6 km/h
17 August 2018
Strongest gust
98.3 km/h
17 August 2018
Hottest feels-like
48.5 °C
1 August 2003
Coldest feels-like
-22.1 °C
17 January 1945
Snowiest day
18.8 cm
4 January 2018
Sunniest day
14.0 h
29 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 | 10.1 °C | +3.6 °C | 6 mm | -32 mm |
| Feb | 9.7 °C | +1.2 °C | 11 mm | -40 mm |
| Mar | 16.9 °C | +3.4 °C | 37 mm | -38 mm |
| Apr | 25.2 °C | +5.4 °C | 37 mm | -56 mm |
| May | 26.5 °C | +1.7 °C | 127 mm | +5 mm |
| Jun | 29.0 °C | +0.6 °C | 273 mm | +65 mm |
| Jul | 33.4 °C | +2.1 °C | 159 mm | -87 mm |
| Aug | 33.2 °C | +2.2 °C | 216 mm | +62 mm |
| Sep | 28.8 °C | +2.0 °C | 268 mm | +147 mm |
| Oct | 23.2 °C | +1.4 °C | 71 mm | +13 mm |
| Nov | 17.6 °C | +1.9 °C | 13 mm | -37 mm |
| Dec | 12.1 °C | +2.9 °C | 4 mm | -26 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 Yangzhou?
Yangzhou has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.6 °C and it receives 1,246 mm of precipitation per year.
What is the hottest day ever recorded in Yangzhou?
The hottest day measured in Yangzhou between 1940 and 2025 was 11 August 1946, reaching 40.4 °C.
What is the coldest day in Yangzhou?
The coldest day measured in Yangzhou between 1940 and 2025 was 17 January 1945, at -16.8 °C.
Does it snow in Yangzhou?
Yes. Yangzhou gets on average 12.9 cm of snow per year and has around 50 frost days.
Has the climate of Yangzhou warmed?
Yes: Yangzhou warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yangzhou?
The wettest day measured in Yangzhou between 1940 and 2025 was 25 June 1979, with 196 mm of rain in 24 hours.
What was the windiest day in Yangzhou?
The windiest day measured in Yangzhou between 1940 and 2025 was 17 August 2018, with winds reaching 45.6 km/h.
What is the warmest month in Yangzhou?
The warmest month in Yangzhou is July (27.8 °C on average); the coldest is January (2.4 °C).
How much does it rain in Yangzhou?
Yangzhou receives on average 1,246 mm of precipitation per year, spread over about 114 rainy days.
Is it sunny in Yangzhou?
Yangzhou gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yangzhou?
The heaviest 24-hour snowfall measured in Yangzhou between 1940 and 2025 was 4 January 2018, with 18.8 cm.
Are there tropical nights in Yangzhou?
Yes: Yangzhou has on average 95 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yangzhou?
In Yangzhou, between 1940 and 2025, the highest apparent temperature reached 48.5 °C on 1 August 2003, and the lowest was -22.1 °C on 17 January 1945.
Compare Yangzhou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yangzhou