Jiaxing climate — normals and trends
Jiaxing (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 1,503 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 (28.8 °C on average) and the coldest is January (4.4 °C). Rainfall peaks in June.
Jiaxing averages 29 frost days, 69 hot days (≥ 30 °C) and 135 rainy days per year.
Jiaxing has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The number of frost days there went from about 39 to 19 per year over the period.
The hottest day of the period reached 41.8 °C (on 20 July 2009) and the coldest -12.5 °C (on 6 February 1969).
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
JiaxingZhejiang
- coords
- 30.75°, 120.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.8°C
Average daily high
20.6°C
Average daily low
13.4°C
Annual rainfall
1,503mm
Sunshine / day
7.8h
Mean relative humidity
77%
Average peak wind
15.7km/h
Seasonal range
24.4°C
Frost days (< 0 °C)
29 d/yr
Hot days (≥ 30 °C)
69 d/yr
Rainy days (≥ 1 mm)
135 d/yr
Annual snowfall
9.2 cm
Average feels-like high
21.2 °C
Average feels-like low
13.1 °C
Average peak gust
31.4 km/h
Tropical nights (≥ 20 °C)
110 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
41.8 °C
20 July 2009
Coldest day
-12.5 °C
6 February 1969
Wettest day
180 mm
5 July 1991
Windiest day
56.5 km/h
6 August 2005
Strongest gust
135.0 km/h
2 August 1956
Hottest feels-like
49.0 °C
1 August 2003
Coldest feels-like
-17.6 °C
6 February 1969
Snowiest day
20.1 cm
18 January 1984
Sunniest day
14.0 h
20 June 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 | 11.6 °C | +3.4 °C | 14 mm | -45 mm |
| Feb | 10.0 °C | +0.4 °C | 36 mm | -44 mm |
| Mar | 17.6 °C | +3.5 °C | 87 mm | -30 mm |
| Apr | 24.8 °C | +4.9 °C | 80 mm | -58 mm |
| May | 27.2 °C | +2.6 °C | 161 mm | -19 mm |
| Jun | 29.8 °C | +1.8 °C | 445 mm | +141 mm |
| Jul | 33.1 °C | +0.6 °C | 217 mm | +40 mm |
| Aug | 35.3 °C | +3.2 °C | 91 mm | -53 mm |
| Sep | 32.3 °C | +4.5 °C | 125 mm | -11 mm |
| Oct | 26.3 °C | +3.6 °C | 38 mm | -29 mm |
| Nov | 18.6 °C | +1.5 °C | 26 mm | -31 mm |
| Dec | 14.8 °C | +4.0 °C | 12 mm | -34 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 Jiaxing?
Jiaxing has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 1,503 mm of precipitation per year.
What is the hottest day ever recorded in Jiaxing?
The hottest day measured in Jiaxing between 1940 and 2025 was 20 July 2009, reaching 41.8 °C.
What is the coldest day in Jiaxing?
The coldest day measured in Jiaxing between 1940 and 2025 was 6 February 1969, at -12.5 °C.
Does it snow in Jiaxing?
Yes. Jiaxing gets on average 9.2 cm of snow per year and has around 29 frost days.
Has the climate of Jiaxing warmed?
Yes: Jiaxing warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jiaxing?
The wettest day measured in Jiaxing between 1940 and 2025 was 5 July 1991, with 180 mm of rain in 24 hours.
What was the windiest day in Jiaxing?
The windiest day measured in Jiaxing between 1940 and 2025 was 6 August 2005, with winds reaching 56.5 km/h.
What is the warmest month in Jiaxing?
The warmest month in Jiaxing is July (28.8 °C on average); the coldest is January (4.4 °C).
How much does it rain in Jiaxing?
Jiaxing receives on average 1,503 mm of precipitation per year, spread over about 135 rainy days.
Is it sunny in Jiaxing?
Jiaxing gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jiaxing?
The heaviest 24-hour snowfall measured in Jiaxing between 1940 and 2025 was 18 January 1984, with 20.1 cm.
Are there tropical nights in Jiaxing?
Yes: Jiaxing has on average 110 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jiaxing?
In Jiaxing, between 1940 and 2025, the highest apparent temperature reached 49.0 °C on 1 August 2003, and the lowest was -17.6 °C on 6 February 1969.
Compare Jiaxing with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jiaxing