Yichun climate — normals and trends
Yichun (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.7 °C and it receives 2,066 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 (28.5 °C on average) and the coldest is January (6.0 °C). Rainfall peaks in June.
Yichun averages 13 frost days, 82 hot days (≥ 30 °C) and 174 rainy days per year.
Yichun has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The number of frost days there went from about 18 to 8 per year over the period.
The hottest day of the period reached 40.2 °C (on 16 August 1953) and the coldest -17.9 °C (on 29 December 1991).
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
YichunJiangxi
- coords
- 27.83°, 114.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.7°C
Average daily high
21.5°C
Average daily low
14.5°C
Annual rainfall
2,066mm
Sunshine / day
7.1h
Mean relative humidity
79%
Average peak wind
9.8km/h
Seasonal range
22.5°C
Frost days (< 0 °C)
13 d/yr
Hot days (≥ 30 °C)
82 d/yr
Rainy days (≥ 1 mm)
174 d/yr
Annual snowfall
9.7 cm
Average feels-like high
23.0 °C
Average feels-like low
15.2 °C
Average peak gust
27.8 km/h
Tropical nights (≥ 20 °C)
125 d/yr
Solar radiation
13.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.22 · 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
40.2 °C
16 August 1953
Coldest day
-17.9 °C
29 December 1991
Wettest day
180 mm
10 August 1969
Windiest day
31.6 km/h
7 June 1946
Strongest gust
78.5 km/h
5 April 2002
Hottest feels-like
46.6 °C
2 August 2003
Coldest feels-like
-21.9 °C
29 December 1991
Snowiest day
14.6 cm
14 January 1970
Sunniest day
13.2 h
2 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 | 13.6 °C | +4.2 °C | 35 mm | -33 mm |
| Feb | 10.0 °C | -1.0 °C | 69 mm | -39 mm |
| Mar | 18.0 °C | +2.3 °C | 171 mm | -31 mm |
| Apr | 24.3 °C | +2.8 °C | 241 mm | -63 mm |
| May | 27.5 °C | +1.6 °C | 327 mm | -15 mm |
| Jun | 30.1 °C | +1.1 °C | 268 mm | -91 mm |
| Jul | 33.8 °C | +1.2 °C | 132 mm | -52 mm |
| Aug | 34.3 °C | +2.3 °C | 64 mm | -106 mm |
| Sep | 31.6 °C | +3.1 °C | 148 mm | +37 mm |
| Oct | 25.9 °C | +2.8 °C | 43 mm | -44 mm |
| Nov | 18.4 °C | +1.0 °C | 79 mm | -1 mm |
| Dec | 15.5 °C | +3.8 °C | 30 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 Yichun?
Yichun has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.7 °C and it receives 2,066 mm of precipitation per year.
What is the hottest day ever recorded in Yichun?
The hottest day measured in Yichun between 1940 and 2025 was 16 August 1953, reaching 40.2 °C.
What is the coldest day in Yichun?
The coldest day measured in Yichun between 1940 and 2025 was 29 December 1991, at -17.9 °C.
Does it snow in Yichun?
Yes. Yichun gets on average 9.7 cm of snow per year and has around 13 frost days.
Has the climate of Yichun warmed?
Yes: Yichun warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yichun?
The wettest day measured in Yichun between 1940 and 2025 was 10 August 1969, with 180 mm of rain in 24 hours.
What was the windiest day in Yichun?
The windiest day measured in Yichun between 1940 and 2025 was 7 June 1946, with winds reaching 31.6 km/h.
What is the warmest month in Yichun?
The warmest month in Yichun is July (28.5 °C on average); the coldest is January (6.0 °C).
How much does it rain in Yichun?
Yichun receives on average 2,066 mm of precipitation per year, spread over about 174 rainy days.
Is it sunny in Yichun?
Yichun gets on average 7.1 hours of sunshine per day, roughly 2,592 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yichun?
The heaviest 24-hour snowfall measured in Yichun between 1940 and 2025 was 14 January 1970, with 14.6 cm.
Are there tropical nights in Yichun?
Yes: Yichun has on average 125 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yichun?
In Yichun, between 1940 and 2025, the highest apparent temperature reached 46.6 °C on 2 August 2003, and the lowest was -21.9 °C on 29 December 1991.
Compare Yichun with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yichun