Xiangtan climate — normals and trends
Xiangtan (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.5 °C and it receives 1,840 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 (30.0 °C on average) and the coldest is January (6.2 °C). Rainfall peaks in June.
Xiangtan averages 10 frost days, 99 hot days (≥ 30 °C) and 159 rainy days per year.
Xiangtan has warmed by +0.9 °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 16 to 4 per year over the period.
The hottest day of the period reached 42.3 °C (on 5 August 2010) and the coldest -11.2 °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
XiangtanHunan
- coords
- 27.85°, 112.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.5°C
Average daily high
22.3°C
Average daily low
15.2°C
Annual rainfall
1,840mm
Sunshine / day
7.0h
Mean relative humidity
77%
Average peak wind
14.4km/h
Seasonal range
23.8°C
Frost days (< 0 °C)
10 d/yr
Hot days (≥ 30 °C)
99 d/yr
Rainy days (≥ 1 mm)
159 d/yr
Annual snowfall
9.3 cm
Average feels-like high
23.3 °C
Average feels-like low
15.4 °C
Average peak gust
30.0 km/h
Tropical nights (≥ 20 °C)
134 d/yr
Solar radiation
13.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.16 · 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
42.3 °C
5 August 2010
Coldest day
-11.2 °C
29 December 1991
Wettest day
157 mm
3 July 2016
Windiest day
43.2 km/h
14 June 1946
Strongest gust
86.4 km/h
5 April 2002
Hottest feels-like
47.4 °C
10 July 1988
Coldest feels-like
-16.2 °C
29 December 1991
Snowiest day
14.8 cm
6 February 1972
Sunniest day
13.0 h
8 June 1950
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 | 14.9 °C | +5.3 °C | 45 mm | -26 mm |
| Feb | 10.7 °C | -0.5 °C | 79 mm | -28 mm |
| Mar | 18.2 °C | +2.1 °C | 109 mm | -78 mm |
| Apr | 25.6 °C | +3.4 °C | 198 mm | -85 mm |
| May | 28.2 °C | +1.6 °C | 264 mm | -45 mm |
| Jun | 30.5 °C | +0.5 °C | 193 mm | -125 mm |
| Jul | 35.4 °C | +1.5 °C | 127 mm | -13 mm |
| Aug | 36.4 °C | +2.9 °C | 32 mm | -93 mm |
| Sep | 32.1 °C | +2.4 °C | 83 mm | -0 mm |
| Oct | 26.7 °C | +2.7 °C | 15 mm | -71 mm |
| Nov | 19.3 °C | +1.3 °C | 90 mm | +11 mm |
| Dec | 16.3 °C | +4.1 °C | 35 mm | -19 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 Xiangtan?
Xiangtan has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.5 °C and it receives 1,840 mm of precipitation per year.
What is the hottest day ever recorded in Xiangtan?
The hottest day measured in Xiangtan between 1940 and 2025 was 5 August 2010, reaching 42.3 °C.
What is the coldest day in Xiangtan?
The coldest day measured in Xiangtan between 1940 and 2025 was 29 December 1991, at -11.2 °C.
Does it snow in Xiangtan?
Yes. Xiangtan gets on average 9.3 cm of snow per year and has around 10 frost days.
Has the climate of Xiangtan warmed?
Yes: Xiangtan warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Xiangtan?
The wettest day measured in Xiangtan between 1940 and 2025 was 3 July 2016, with 157 mm of rain in 24 hours.
What was the windiest day in Xiangtan?
The windiest day measured in Xiangtan between 1940 and 2025 was 14 June 1946, with winds reaching 43.2 km/h.
What is the warmest month in Xiangtan?
The warmest month in Xiangtan is July (30.0 °C on average); the coldest is January (6.2 °C).
How much does it rain in Xiangtan?
Xiangtan receives on average 1,840 mm of precipitation per year, spread over about 159 rainy days.
Is it sunny in Xiangtan?
Xiangtan gets on average 7.0 hours of sunshine per day, roughly 2,555 hours per year over 1940-2025.
What is the biggest single-day snowfall in Xiangtan?
The heaviest 24-hour snowfall measured in Xiangtan between 1940 and 2025 was 6 February 1972, with 14.8 cm.
Are there tropical nights in Xiangtan?
Yes: Xiangtan has on average 134 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Xiangtan?
In Xiangtan, between 1940 and 2025, the highest apparent temperature reached 47.4 °C on 10 July 1988, and the lowest was -16.2 °C on 29 December 1991.
Compare Xiangtan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Xiangtan