Jiaojiang climate — normals and trends
Jiaojiang (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.2 °C and it receives 1,487 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 (28.7 °C on average) and the coldest is January (7.3 °C). Rainfall peaks in June.
Jiaojiang averages 5 frost days, 69 hot days (≥ 30 °C) and 150 rainy days per year.
Jiaojiang has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 8 to 2 per year over the period.
The hottest day of the period reached 42.0 °C (on 23 July 2022) and the coldest -5.6 °C (on 16 January 1967).
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
JiaojiangZhejiang
- coords
- 28.70°, 121.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.2°C
Average daily high
21.3°C
Average daily low
15.7°C
Annual rainfall
1,487mm
Sunshine / day
7.6h
Mean relative humidity
79%
Average peak wind
15.8km/h
Seasonal range
21.4°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
69 d/yr
Rainy days (≥ 1 mm)
150 d/yr
Annual snowfall
4.7 cm
Average feels-like high
22.3 °C
Average feels-like low
16.0 °C
Average peak gust
33.3 km/h
Tropical nights (≥ 20 °C)
133 d/yr
Solar radiation
13.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.64 · 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
42.0 °C
23 July 2022
Coldest day
-5.6 °C
16 January 1967
Wettest day
174 mm
12 August 2004
Windiest day
80.5 km/h
12 August 2004
Strongest gust
165.6 km/h
12 August 2004
Hottest feels-like
47.9 °C
23 July 2022
Coldest feels-like
-11.7 °C
16 January 1967
Snowiest day
11.0 cm
13 January 1989
Sunniest day
13.8 h
15 June 2019
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 | 13.1 °C | +2.8 °C | 11 mm | -40 mm |
| Feb | 11.9 °C | +0.5 °C | 50 mm | -19 mm |
| Mar | 18.1 °C | +3.1 °C | 76 mm | -31 mm |
| Apr | 24.0 °C | +3.9 °C | 144 mm | +10 mm |
| May | 26.9 °C | +2.6 °C | 240 mm | +41 mm |
| Jun | 31.3 °C | +3.4 °C | 173 mm | -88 mm |
| Jul | 32.3 °C | +0.2 °C | 266 mm | +127 mm |
| Aug | 35.0 °C | +3.3 °C | 50 mm | -124 mm |
| Sep | 33.7 °C | +5.4 °C | 116 mm | -41 mm |
| Oct | 27.8 °C | +4.4 °C | 68 mm | -12 mm |
| Nov | 19.4 °C | +1.0 °C | 95 mm | +26 mm |
| Dec | 16.0 °C | +3.2 °C | 12 mm | -36 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 Jiaojiang?
Jiaojiang has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.2 °C and it receives 1,487 mm of precipitation per year.
What is the hottest day ever recorded in Jiaojiang?
The hottest day measured in Jiaojiang between 1940 and 2025 was 23 July 2022, reaching 42.0 °C.
What is the coldest day in Jiaojiang?
The coldest day measured in Jiaojiang between 1940 and 2025 was 16 January 1967, at -5.6 °C.
Does it snow in Jiaojiang?
Yes. Jiaojiang gets on average 4.7 cm of snow per year and has around 5 frost days.
Has the climate of Jiaojiang warmed?
Yes: Jiaojiang warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jiaojiang?
The wettest day measured in Jiaojiang between 1940 and 2025 was 12 August 2004, with 174 mm of rain in 24 hours.
What was the windiest day in Jiaojiang?
The windiest day measured in Jiaojiang between 1940 and 2025 was 12 August 2004, with winds reaching 80.5 km/h.
What is the warmest month in Jiaojiang?
The warmest month in Jiaojiang is July (28.7 °C on average); the coldest is January (7.3 °C).
How much does it rain in Jiaojiang?
Jiaojiang receives on average 1,487 mm of precipitation per year, spread over about 150 rainy days.
Is it sunny in Jiaojiang?
Jiaojiang gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jiaojiang?
The heaviest 24-hour snowfall measured in Jiaojiang between 1940 and 2025 was 13 January 1989, with 11.0 cm.
Are there tropical nights in Jiaojiang?
Yes: Jiaojiang has on average 133 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jiaojiang?
In Jiaojiang, between 1940 and 2025, the highest apparent temperature reached 47.9 °C on 23 July 2022, and the lowest was -11.7 °C on 16 January 1967.
Compare Jiaojiang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jiaojiang