Deyang climate — normals and trends
Deyang (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 17.3 °C and it receives 1,052 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 (26.5 °C on average) and the coldest is January (6.5 °C). Rainfall peaks in July.
Deyang averages 6 frost days, 58 hot days (≥ 30 °C) and 120 rainy days per year.
Deyang has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 11 to 1 per year over the period.
The hottest day of the period reached 42.2 °C (on 21 August 2022) and the coldest -5.4 °C (on 2 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
DeyangSichuan
- coords
- 31.13°, 104.38°
- 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
1,052mm
Sunshine / day
7.0h
Mean relative humidity
73%
Average peak wind
10.0km/h
Seasonal range
20.0°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
58 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
1.1 cm
Average feels-like high
21.6 °C
Average feels-like low
14.2 °C
Average peak gust
22.6 km/h
Tropical nights (≥ 20 °C)
106 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
42.2 °C
21 August 2022
Coldest day
-5.4 °C
2 January 1967
Wettest day
245 mm
30 August 1946
Windiest day
58.3 km/h
13 May 1946
Strongest gust
78.5 km/h
12 April 1980
Hottest feels-like
46.0 °C
23 August 2022
Coldest feels-like
-9.3 °C
2 January 1967
Snowiest day
4.6 cm
13 January 1957
Sunniest day
14.0 h
10 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 | 11.6 °C | +1.6 °C | 14 mm | +1 mm |
| Feb | 11.2 °C | -1.0 °C | 37 mm | +21 mm |
| Mar | 16.6 °C | -0.7 °C | 30 mm | +7 mm |
| Apr | 26.5 °C | +3.6 °C | 18 mm | -24 mm |
| May | 30.4 °C | +3.4 °C | 48 mm | -16 mm |
| Jun | 31.8 °C | +2.6 °C | 150 mm | +21 mm |
| Jul | 33.1 °C | +2.8 °C | 226 mm | -51 mm |
| Aug | 32.8 °C | +2.8 °C | 172 mm | -79 mm |
| Sep | 27.4 °C | +1.8 °C | 221 mm | +69 mm |
| Oct | 21.5 °C | +0.7 °C | 105 mm | +55 mm |
| Nov | 16.4 °C | +0.3 °C | 13 mm | -11 mm |
| Dec | 12.8 °C | +1.6 °C | 6 mm | -6 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 Deyang?
Deyang has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 17.3 °C and it receives 1,052 mm of precipitation per year.
What is the hottest day ever recorded in Deyang?
The hottest day measured in Deyang between 1940 and 2025 was 21 August 2022, reaching 42.2 °C.
What is the coldest day in Deyang?
The coldest day measured in Deyang between 1940 and 2025 was 2 January 1967, at -5.4 °C.
Does it snow in Deyang?
Yes. Deyang gets on average 1.1 cm of snow per year and has around 6 frost days.
Has the climate of Deyang warmed?
Yes: Deyang warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Deyang?
The wettest day measured in Deyang between 1940 and 2025 was 30 August 1946, with 245 mm of rain in 24 hours.
What was the windiest day in Deyang?
The windiest day measured in Deyang between 1940 and 2025 was 13 May 1946, with winds reaching 58.3 km/h.
What is the warmest month in Deyang?
The warmest month in Deyang is July (26.5 °C on average); the coldest is January (6.5 °C).
How much does it rain in Deyang?
Deyang receives on average 1,052 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Deyang?
Deyang 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 Deyang?
The heaviest 24-hour snowfall measured in Deyang between 1940 and 2025 was 13 January 1957, with 4.6 cm.
Are there tropical nights in Deyang?
Yes: Deyang has on average 106 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Deyang?
In Deyang, between 1940 and 2025, the highest apparent temperature reached 46.0 °C on 23 August 2022, and the lowest was -9.3 °C on 2 January 1967.
Compare Deyang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Deyang