Degan climate — normals and trends

Q: What is the climate of Degan?

Degan has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 1,158 mm of precipitation per year.

Q: What is the hottest day ever recorded in Degan?

The hottest day measured in Degan between 1940 and 2025 was 17 August 2011, reaching 43.7 °C.

Q: What is the coldest day in Degan?

The coldest day measured in Degan between 1940 and 2025 was 21 December 1944, at -3.5 °C.

Q: Does it snow in Degan?

Yes. Degan gets on average 1.1 cm of snow per year and has around 1 frost days.

Q: Has the climate of Degan warmed?

Yes: Degan warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Degan?

The wettest day measured in Degan between 1940 and 2025 was 19 July 1984, with 151 mm of rain in 24 hours.

Q: What was the windiest day in Degan?

The windiest day measured in Degan between 1940 and 2025 was 21 May 1946, with winds reaching 56.4 km/h.

Q: What is the warmest month in Degan?

The warmest month in Degan is July (28.5 °C on average); the coldest is January (8.2 °C).

Q: How much does it rain in Degan?

Degan receives on average 1,158 mm of precipitation per year, spread over about 166 rainy days.

Q: Is it sunny in Degan?

Degan gets on average 6.1 hours of sunshine per day, roughly 2,227 hours per year over 1940-2025.

Degan (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.6 °C and it receives 1,158 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 (8.2 °C). Rainfall peaks in July.

Degan averages 1 frost days, 78 hot days (≥ 30 °C) and 166 rainy days per year.

Degan 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 2 to 0 per year over the period.

The hottest day of the period reached 43.7 °C (on 17 August 2011) and the coldest -3.5 °C (on 21 December 1944).

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

DeganChongqing Municipality

coords: 29.28°, 106.23°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthJulyDriest monthFebruary

Mean daily temperature

18.6°C

Average daily high

21.9°C

Average daily low

15.7°C

Annual rainfall

1,158mm

Sunshine / day

6.1h

Mean relative humidity

78%

Average peak wind

9.6km/h

Seasonal range

20.3°C

Frost days (< 0 °C)

1 d/yr

Hot days (≥ 30 °C)

78 d/yr

Rainy days (≥ 1 mm)

166 d/yr

Annual snowfall

1.1 cm

Average feels-like high

23.4 °C

Average feels-like low

16.6 °C

Average peak gust

21.9 km/h

Tropical nights (≥ 20 °C)

123 d/yr

Solar radiation

11.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °C per decade · r² = 0.29 · p = < 0.001

19402025

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

43.7 °C

17 August 2011

Coldest day

-3.5 °C

21 December 1944

Wettest day

151 mm

19 July 1984

Windiest day

56.4 km/h

21 May 1946

Strongest gust

71.3 km/h

14 May 1946

Hottest feels-like

48.2 °C

16 July 2025

Coldest feels-like

-7.1 °C

21 December 1944

Snowiest day

7.6 cm

27 December 1991

Sunniest day

13.9 h

19 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	41.0 °C3 August 2025	0.5 °C12 January 2025	20.0 °C	1,180 mm	115	0
2024	42.9 °C24 August 2024	2.2 °C16 December 2024	20.4 °C	1,030 mm	104	0
2023	38.0 °C11 July 2023	1.4 °C15 January 2023	19.5 °C	1,293 mm	90	0
2022	43.4 °C18 August 2022	2.0 °C23 February 2022	20.0 °C	915 mm	95	0
2021	40.6 °C3 August 2021	-1.7 °C12 January 2021	19.0 °C	1,059 mm	84	2
2020	39.7 °C29 August 2020	1.7 °C21 December 2020	18.8 °C	1,098 mm	78	0
2019	38.6 °C16 August 2019	4.3 °C22 January 2019	18.9 °C	937 mm	79	0
2018	40.3 °C29 July 2018	1.5 °C10 January 2018	19.1 °C	1,020 mm	91	0
2017	40.9 °C22 August 2017	2.0 °C21 December 2017	19.2 °C	1,002 mm	84	0
2016	39.9 °C25 August 2016	-1.4 °C25 January 2016	19.2 °C	1,252 mm	88	1
2015	37.5 °C28 June 2015	3.0 °C17 December 2015	19.4 °C	1,009 mm	78	0
2014	39.7 °C6 August 2014	1.8 °C14 January 2014	18.6 °C	1,144 mm	61	0
2013	43.4 °C25 July 2013	1.4 °C1 January 2013	20.2 °C	954 mm	111	0
2012	39.0 °C17 August 2012	-0.6 °C31 December 2012	18.2 °C	998 mm	68	1
2011	43.7 °C17 August 2011	-0.3 °C2 February 2011	19.3 °C	726 mm	108	1
2010	40.9 °C11 August 2010	1.5 °C17 December 2010	18.8 °C	1,102 mm	73	0
2009	41.7 °C8 September 2009	1.6 °C27 January 2009	19.3 °C	921 mm	95	0
2008	39.8 °C27 July 2008	-0.4 °C29 January 2008	18.9 °C	946 mm	90	1
2007	36.8 °C8 August 2007	2.1 °C19 January 2007	19.3 °C	1,085 mm	96	0
2006	42.7 °C15 August 2006	0.5 °C9 January 2006	19.8 °C	984 mm	96	0
2005	37.9 °C1 July 2005	1.0 °C1 January 2005	18.8 °C	969 mm	86	0
2004	38.0 °C11 August 2004	1.9 °C31 December 2004	18.5 °C	1,574 mm	73	0
2003	38.9 °C25 August 2003	1.9 °C7 January 2003	19.0 °C	1,037 mm	69	0
2002	38.7 °C16 July 2002	2.4 °C27 December 2002	19.0 °C	1,132 mm	79	0
2001	39.3 °C26 July 2001	2.2 °C23 December 2001	19.1 °C	951 mm	69	0
2000	37.3 °C23 July 2000	1.9 °C1 January 2000	18.4 °C	1,299 mm	78	0
1999	36.7 °C14 June 1999	-0.6 °C26 December 1999	18.8 °C	1,368 mm	72	1
1998	37.6 °C16 September 1998	1.9 °C23 January 1998	19.3 °C	1,430 mm	87	0
1997	40.7 °C31 August 1997	1.5 °C28 January 1997	18.7 °C	1,199 mm	80	0
1996	37.9 °C23 August 1996	1.4 °C13 December 1996	18.0 °C	1,270 mm	76	0
1995	40.7 °C6 September 1995	2.0 °C29 December 1995	18.6 °C	1,126 mm	82	0
1994	40.8 °C5 August 1994	0.2 °C25 January 1994	18.9 °C	1,098 mm	90	0
1993	37.0 °C13 July 1993	0.3 °C27 January 1993	18.1 °C	1,111 mm	57	0
1992	42.6 °C9 August 1992	1.0 °C24 December 1992	18.3 °C	972 mm	80	0
1991	37.8 °C28 July 1991	-0.3 °C28 December 1991	18.3 °C	1,001 mm	79	1
1990	40.1 °C27 August 1990	2.0 °C31 January 1990	19.0 °C	999 mm	93	0
1989	37.9 °C22 July 1989	0.7 °C16 January 1989	17.9 °C	1,151 mm	67	0
1988	38.3 °C18 July 1988	2.7 °C19 February 1988	18.2 °C	1,126 mm	79	0
1987	37.4 °C24 May 1987	2.0 °C16 December 1987	18.6 °C	1,212 mm	63	0
1986	37.6 °C7 August 1986	0.4 °C7 January 1986	17.9 °C	1,173 mm	70	0
1985	37.4 °C5 August 1985	2.3 °C18 January 1985	18.0 °C	1,215 mm	70	0
1984	38.1 °C1 August 1984	1.9 °C9 January 1984	18.0 °C	1,421 mm	70	0
1983	36.4 °C25 July 1983	1.6 °C31 December 1983	18.3 °C	1,233 mm	61	0
1982	37.9 °C3 August 1982	-1.6 °C27 December 1982	17.8 °C	1,378 mm	63	3
1981	38.9 °C19 August 1981	0.5 °C23 December 1981	18.4 °C	989 mm	82	0
1980	39.2 °C27 July 1980	0.1 °C9 February 1980	18.4 °C	949 mm	63	0
1979	36.9 °C9 August 1979	0.2 °C24 November 1979	18.6 °C	1,297 mm	63	0
1978	40.2 °C25 August 1978	0.0 °C21 January 1978	19.0 °C	922 mm	91	0
1977	38.5 °C7 August 1977	-0.5 °C29 January 1977	18.3 °C	1,136 mm	72	3
1976	39.7 °C7 August 1976	0.3 °C2 January 1976	17.9 °C	961 mm	67	0
1975	39.7 °C9 September 1975	-1.6 °C15 December 1975	18.7 °C	1,266 mm	80	4
1974	38.9 °C30 July 1974	2.5 °C25 February 1974	18.2 °C	1,399 mm	58	0
1973	37.5 °C7 July 1973	1.8 °C31 December 1973	19.2 °C	1,159 mm	86	0
1972	40.6 °C26 August 1972	1.3 °C8 February 1972	18.5 °C	1,149 mm	86	0
1971	40.6 °C2 September 1971	2.2 °C8 January 1971	18.8 °C	1,002 mm	75	0
1970	39.2 °C18 August 1970	0.8 °C5 January 1970	18.2 °C	1,193 mm	78	0
1969	37.5 °C26 July 1969	0.6 °C16 January 1969	18.8 °C	1,050 mm	90	0
1968	37.0 °C31 July 1968	0.9 °C7 February 1968	17.9 °C	1,515 mm	66	0
1967	38.9 °C11 August 1967	-0.6 °C12 January 1967	18.0 °C	1,290 mm	76	1
1966	36.3 °C5 August 1966	-0.8 °C29 January 1966	18.2 °C	1,165 mm	67	1
1965	34.6 °C12 July 1965	-0.2 °C31 December 1965	17.8 °C	1,180 mm	49	1
1964	40.8 °C20 July 1964	1.6 °C26 February 1964	18.7 °C	1,232 mm	73	0
1963	40.0 °C31 August 1963	-0.6 °C15 January 1963	19.5 °C	1,056 mm	95	1
1962	38.7 °C18 July 1962	0.0 °C3 January 1962	18.5 °C	1,228 mm	73	0
1961	39.5 °C27 June 1961	0.4 °C17 January 1961	19.0 °C	1,165 mm	100	0
1960	38.3 °C4 August 1960	-0.4 °C3 January 1960	18.7 °C	1,116 mm	82	1
1959	40.8 °C26 July 1959	1.5 °C13 January 1959	19.3 °C	850 mm	101	0
1958	38.2 °C26 July 1958	0.1 °C16 January 1958	18.8 °C	1,207 mm	87	0
1957	38.5 °C23 July 1957	-0.5 °C7 February 1957	18.2 °C	1,156 mm	54	1
1956	35.2 °C4 July 1956	-1.6 °C11 January 1956	18.1 °C	1,256 mm	83	3
1955	34.3 °C7 September 1955	-2.3 °C6 January 1955	18.2 °C	1,186 mm	71	4
1954	35.2 °C16 July 1954	0.7 °C16 December 1954	18.3 °C	1,523 mm	73	0
1953	37.4 °C3 August 1953	0.6 °C27 January 1953	19.2 °C	1,258 mm	85	0
1952	36.6 °C4 July 1952	0.2 °C14 January 1952	18.7 °C	1,230 mm	68	0
1951	35.2 °C8 September 1951	-2.8 °C14 January 1951	18.4 °C	1,115 mm	83	1
1950	34.4 °C3 July 1950	-0.6 °C17 December 1950	17.9 °C	1,481 mm	55	1
1949	35.5 °C14 September 1949	-0.8 °C9 January 1949	18.5 °C	1,168 mm	73	1
1948	34.1 °C13 August 1948	-1.0 °C9 February 1948	18.5 °C	1,266 mm	75	3
1947	34.3 °C25 July 1947	-2.3 °C20 December 1947	18.6 °C	1,324 mm	80	4
1946	39.4 °C19 August 1946	-0.1 °C3 February 1946	19.2 °C	945 mm	109	1
1945	34.2 °C25 July 1945	-2.7 °C11 February 1945	17.4 °C	1,176 mm	59	9
1944	35.4 °C4 August 1944	-3.5 °C21 December 1944	17.6 °C	1,273 mm	82	7
1943	32.7 °C22 September 1943	-2.2 °C8 February 1943	18.0 °C	1,868 mm	42	1
1942	33.2 °C3 August 1942	0.7 °C8 January 1942	18.5 °C	1,537 mm	61	0
1941	35.5 °C11 July 1941	0.3 °C2 February 1941	18.1 °C	1,257 mm	51	0
1940	35.8 °C19 August 1940	-1.6 °C3 February 1940	18.1 °C	990 mm	74	2

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?

Year

Across the whole year

Average daily high

23.7 °C

+1.8 °C

Hot days (≥ 30 °C)

115 d/yr

+37

Frost days (< 0 °C)

0 d/yr

-1

Annual rainfall

1180 mm

+22 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	12.4 °C	+1.8 °C	61 mm	+26 mm
Feb	12.4 °C	-0.4 °C	39 mm	+5 mm
Mar	17.5 °C	-0.4 °C	53 mm	-8 mm
Apr	25.8 °C	+2.9 °C	67 mm	-34 mm
May	28.3 °C	+2.0 °C	109 mm	-31 mm
Jun	30.8 °C	+2.0 °C	141 mm	-9 mm
Jul	35.1 °C	+2.7 °C	254 mm	+85 mm
Aug	35.8 °C	+3.2 °C	142 mm	-13 mm
Sep	30.4 °C	+2.4 °C	118 mm	+5 mm
Oct	24.5 °C	+2.7 °C	106 mm	+13 mm
Nov	16.9 °C	0.0 °C	54 mm	-10 mm
Dec	13.6 °C	+1.7 °C	38 mm	-6 mm

The year's extremes

Hottest day

41.0 °C

3 Aug 2025

Coldest day

0.5 °C

12 Jan 2025

Wettest day

50.5 mm

23 Jul 2025

Windiest day

28.6 km/h

12 Apr 2025

Strongest gust

59.8 km/h

12 Apr 2025

Hottest feels-like

48.2 °C

16 Jul 2025

Coldest feels-like

-2.6 °C

12 Jan 2025

Sunniest day

13.9 h

16 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Degan?

Degan has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 1,158 mm of precipitation per year.

What is the hottest day ever recorded in Degan?

The hottest day measured in Degan between 1940 and 2025 was 17 August 2011, reaching 43.7 °C.

What is the coldest day in Degan?

The coldest day measured in Degan between 1940 and 2025 was 21 December 1944, at -3.5 °C.

Does it snow in Degan?

Yes. Degan gets on average 1.1 cm of snow per year and has around 1 frost days.

Has the climate of Degan warmed?

Yes: Degan warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Degan?

The wettest day measured in Degan between 1940 and 2025 was 19 July 1984, with 151 mm of rain in 24 hours.

What was the windiest day in Degan?

The windiest day measured in Degan between 1940 and 2025 was 21 May 1946, with winds reaching 56.4 km/h.

What is the warmest month in Degan?

The warmest month in Degan is July (28.5 °C on average); the coldest is January (8.2 °C).

How much does it rain in Degan?

Degan receives on average 1,158 mm of precipitation per year, spread over about 166 rainy days.

Is it sunny in Degan?

Degan gets on average 6.1 hours of sunshine per day, roughly 2,227 hours per year over 1940-2025.

What is the biggest single-day snowfall in Degan?

The heaviest 24-hour snowfall measured in Degan between 1940 and 2025 was 27 December 1991, with 7.6 cm.

Are there tropical nights in Degan?

Yes: Degan has on average 123 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Degan?

In Degan, between 1940 and 2025, the highest apparent temperature reached 48.2 °C on 16 July 2025, and the lowest was -7.1 °C on 21 December 1944.

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