Gantang climate — normals and trends
Gantang (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.3 °C and it receives 1,847 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 (27.7 °C on average) and the coldest is January (5.6 °C). Rainfall peaks in May.
Gantang averages 12 frost days, 78 hot days (≥ 30 °C) and 179 rainy days per year.
Gantang has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 17 to 7 per year over the period.
The hottest day of the period reached 40.6 °C (on 5 August 2010) and the coldest -10.5 °C (on 30 January 1977).
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
GantangHunan
- coords
- 26.72°, 109.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.3°C
Average daily high
21.1°C
Average daily low
14.1°C
Annual rainfall
1,847mm
Sunshine / day
6.3h
Mean relative humidity
79%
Average peak wind
13.8km/h
Seasonal range
22.1°C
Frost days (< 0 °C)
12 d/yr
Hot days (≥ 30 °C)
78 d/yr
Rainy days (≥ 1 mm)
179 d/yr
Annual snowfall
13.9 cm
Average feels-like high
21.6 °C
Average feels-like low
14.2 °C
Average peak gust
31.9 km/h
Tropical nights (≥ 20 °C)
118 d/yr
Solar radiation
11.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °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
40.6 °C
5 August 2010
Coldest day
-10.5 °C
30 January 1977
Wettest day
167 mm
6 August 1994
Windiest day
45.9 km/h
14 June 1946
Strongest gust
102.2 km/h
6 July 1946
Hottest feels-like
44.6 °C
10 July 2016
Coldest feels-like
-15.2 °C
30 January 1977
Snowiest day
16.7 cm
8 February 1977
Sunniest day
13.3 h
5 July 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 | +4.8 °C | 43 mm | -41 mm |
| Feb | 9.0 °C | -1.2 °C | 116 mm | +5 mm |
| Mar | 17.1 °C | +1.7 °C | 164 mm | -18 mm |
| Apr | 25.3 °C | +4.0 °C | 217 mm | -54 mm |
| May | 26.9 °C | +1.3 °C | 322 mm | +31 mm |
| Jun | 29.0 °C | +0.4 °C | 380 mm | +100 mm |
| Jul | 33.5 °C | +1.8 °C | 170 mm | +24 mm |
| Aug | 32.9 °C | +1.4 °C | 112 mm | -23 mm |
| Sep | 30.0 °C | +1.5 °C | 91 mm | +0 mm |
| Oct | 25.1 °C | +2.4 °C | 41 mm | -66 mm |
| Nov | 18.1 °C | +1.0 °C | 113 mm | +26 mm |
| Dec | 14.9 °C | +3.5 °C | 37 mm | -27 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 Gantang?
Gantang has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.3 °C and it receives 1,847 mm of precipitation per year.
What is the hottest day ever recorded in Gantang?
The hottest day measured in Gantang between 1940 and 2025 was 5 August 2010, reaching 40.6 °C.
What is the coldest day in Gantang?
The coldest day measured in Gantang between 1940 and 2025 was 30 January 1977, at -10.5 °C.
Does it snow in Gantang?
Yes. Gantang gets on average 13.9 cm of snow per year and has around 12 frost days.
Has the climate of Gantang warmed?
Yes: Gantang warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gantang?
The wettest day measured in Gantang between 1940 and 2025 was 6 August 1994, with 167 mm of rain in 24 hours.
What was the windiest day in Gantang?
The windiest day measured in Gantang between 1940 and 2025 was 14 June 1946, with winds reaching 45.9 km/h.
What is the warmest month in Gantang?
The warmest month in Gantang is July (27.7 °C on average); the coldest is January (5.6 °C).
How much does it rain in Gantang?
Gantang receives on average 1,847 mm of precipitation per year, spread over about 179 rainy days.
Is it sunny in Gantang?
Gantang gets on average 6.3 hours of sunshine per day, roughly 2,300 hours per year over 1940-2025.
What is the biggest single-day snowfall in Gantang?
The heaviest 24-hour snowfall measured in Gantang between 1940 and 2025 was 8 February 1977, with 16.7 cm.
Are there tropical nights in Gantang?
Yes: Gantang has on average 118 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gantang?
In Gantang, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 10 July 2016, and the lowest was -15.2 °C on 30 January 1977.
Compare Gantang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gantang