Duyun climate — normals and trends
Duyun (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.3 °C and it receives 1,914 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 (23.8 °C on average) and the coldest is January (5.1 °C). Rainfall peaks in June.
Duyun averages 20 frost days, 13 hot days (≥ 30 °C) and 228 rainy days per year.
Duyun has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The number of frost days there went from about 25 to 15 per year over the period.
The hottest day of the period reached 35.1 °C (on 27 August 1972) and the coldest -12.2 °C (on 10 February 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
DuyunGuizhou
- coords
- 26.27°, 107.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.3°C
Average daily high
18.9°C
Average daily low
12.3°C
Annual rainfall
1,914mm
Sunshine / day
5.6h
Mean relative humidity
83%
Average peak wind
14.9km/h
Seasonal range
18.7°C
Frost days (< 0 °C)
20 d/yr
Hot days (≥ 30 °C)
13 d/yr
Rainy days (≥ 1 mm)
228 d/yr
Annual snowfall
13.2 cm
Average feels-like high
19.0 °C
Average feels-like low
11.7 °C
Average peak gust
34.8 km/h
Tropical nights (≥ 20 °C)
73 d/yr
Solar radiation
11.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.34 · 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
35.1 °C
27 August 1972
Coldest day
-12.2 °C
10 February 1977
Wettest day
103 mm
20 July 2002
Windiest day
43.2 km/h
7 June 1946
Strongest gust
94.3 km/h
7 June 1946
Hottest feels-like
40.0 °C
27 July 1971
Coldest feels-like
-16.6 °C
10 February 1977
Snowiest day
16.0 cm
28 December 1983
Sunniest day
13.6 h
3 July 1973
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 | 11.2 °C | +3.0 °C | 57 mm | -26 mm |
| Feb | 7.1 °C | -2.9 °C | 85 mm | -11 mm |
| Mar | 15.2 °C | +0.3 °C | 91 mm | -62 mm |
| Apr | 22.6 °C | +2.7 °C | 138 mm | -80 mm |
| May | 23.7 °C | +0.4 °C | 297 mm | +18 mm |
| Jun | 26.2 °C | +0.7 °C | 369 mm | +68 mm |
| Jul | 29.6 °C | +2.2 °C | 137 mm | -75 mm |
| Aug | 28.9 °C | +1.5 °C | 191 mm | +21 mm |
| Sep | 26.9 °C | +1.9 °C | 148 mm | +19 mm |
| Oct | 21.7 °C | +1.7 °C | 53 mm | -71 mm |
| Nov | 15.9 °C | +0.6 °C | 108 mm | +24 mm |
| Dec | 12.6 °C | +2.3 °C | 57 mm | -8 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 Duyun?
Duyun has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.3 °C and it receives 1,914 mm of precipitation per year.
What is the hottest day ever recorded in Duyun?
The hottest day measured in Duyun between 1940 and 2025 was 27 August 1972, reaching 35.1 °C.
What is the coldest day in Duyun?
The coldest day measured in Duyun between 1940 and 2025 was 10 February 1977, at -12.2 °C.
Does it snow in Duyun?
Yes. Duyun gets on average 13.2 cm of snow per year and has around 20 frost days.
Has the climate of Duyun warmed?
Yes: Duyun warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Duyun?
The wettest day measured in Duyun between 1940 and 2025 was 20 July 2002, with 103 mm of rain in 24 hours.
What was the windiest day in Duyun?
The windiest day measured in Duyun between 1940 and 2025 was 7 June 1946, with winds reaching 43.2 km/h.
What is the warmest month in Duyun?
The warmest month in Duyun is July (23.8 °C on average); the coldest is January (5.1 °C).
How much does it rain in Duyun?
Duyun receives on average 1,914 mm of precipitation per year, spread over about 228 rainy days.
Is it sunny in Duyun?
Duyun gets on average 5.6 hours of sunshine per day, roughly 2,044 hours per year over 1940-2025.
What is the biggest single-day snowfall in Duyun?
The heaviest 24-hour snowfall measured in Duyun between 1940 and 2025 was 28 December 1983, with 16.0 cm.
Are there tropical nights in Duyun?
Yes: Duyun has on average 73 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Duyun?
In Duyun, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 27 July 1971, and the lowest was -16.6 °C on 10 February 1977.
Compare Duyun with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Duyun