Mengmao climate — normals and trends

Q: What is the climate of Mengmao?

Mengmao has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 2,115 mm of precipitation per year.

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

The hottest day measured in Mengmao between 1940 and 2025 was 16 April 1980, reaching 35.5 °C.

Q: What is the coldest day in Mengmao?

The coldest day measured in Mengmao between 1940 and 2025 was 6 January 1983, at -0.6 °C.

Q: Does it snow in Mengmao?

Almost never: Mengmao sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Mengmao warmed?

Yes: Mengmao warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Mengmao?

The wettest day measured in Mengmao between 1940 and 2025 was 18 June 1958, with 234 mm of rain in 24 hours.

Q: What was the windiest day in Mengmao?

The windiest day measured in Mengmao between 1940 and 2025 was 11 April 1985, with winds reaching 22.7 km/h.

Q: What is the warmest month in Mengmao?

The warmest month in Mengmao is June (22.4 °C on average); the coldest is January (13.1 °C).

Q: How much does it rain in Mengmao?

Mengmao receives on average 2,115 mm of precipitation per year, spread over about 195 rainy days.

Q: Is it sunny in Mengmao?

Mengmao gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Mengmao (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 19.2 °C and it receives 2,115 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 June (22.4 °C on average) and the coldest is January (13.1 °C). Rainfall peaks in July.

Mengmao averages 0 frost days, 19 hot days (≥ 30 °C) and 195 rainy days per year.

Mengmao has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.5 °C (on 16 April 1980) and the coldest -0.6 °C (on 6 January 1983).

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

MengmaoYunnan

coords: 24.00°, 97.86°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJuneColdest monthJanuaryWettest monthJulyDriest monthJanuary

Mean daily temperature

19.2°C

Average daily high

24.7°C

Average daily low

15.1°C

Annual rainfall

2,115mm

Sunshine / day

8.8h

Mean relative humidity

79%

Average peak wind

8.6km/h

Seasonal range

9.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

19 d/yr

Rainy days (≥ 1 mm)

195 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.5 °C

Average feels-like low

16.0 °C

Average peak gust

30.5 km/h

Tropical nights (≥ 20 °C)

67 d/yr

Solar radiation

15.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.78 · 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

35.5 °C

16 April 1980

Coldest day

-0.6 °C

6 January 1983

Wettest day

234 mm

18 June 1958

Windiest day

22.7 km/h

11 April 1985

Strongest gust

79.9 km/h

30 April 1991

Hottest feels-like

39.0 °C

15 August 2006

Coldest feels-like

-3.5 °C

6 January 1983

Sunniest day

13.0 h

11 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	33.7 °C26 April 2025	5.0 °C8 December 2025	20.3 °C	2,000 mm	29	0
2024	33.8 °C9 April 2024	4.0 °C13 January 2024	20.3 °C	1,716 mm	40	0
2023	34.8 °C8 May 2023	3.7 °C16 January 2023	20.5 °C	1,731 mm	45	0
2022	32.4 °C14 March 2022	2.9 °C7 February 2022	19.9 °C	1,670 mm	26	0
2021	33.4 °C24 April 2021	3.4 °C17 December 2021	20.3 °C	1,593 mm	34	0
2020	33.2 °C10 May 2020	3.8 °C26 January 2020	20.2 °C	1,672 mm	33	0
2019	35.0 °C20 May 2019	3.8 °C17 January 2019	20.3 °C	1,509 mm	56	0
2018	32.3 °C18 August 2018	4.7 °C29 January 2018	19.7 °C	2,081 mm	8	0
2017	32.2 °C7 June 2017	3.7 °C21 January 2017	20.0 °C	1,964 mm	14	0
2016	33.3 °C11 May 2016	4.1 °C12 January 2016	20.0 °C	1,962 mm	23	0
2015	31.1 °C7 May 2015	3.1 °C13 January 2015	19.6 °C	1,992 mm	12	0
2014	34.3 °C22 April 2014	3.9 °C4 January 2014	20.2 °C	1,830 mm	28	0
2013	32.6 °C11 April 2013	2.1 °C19 December 2013	20.0 °C	1,894 mm	20	0
2012	34.5 °C20 May 2012	4.1 °C16 January 2012	20.2 °C	1,897 mm	49	0
2011	33.1 °C18 April 2011	2.9 °C21 January 2011	19.8 °C	2,055 mm	18	0
2010	34.0 °C12 May 2010	3.0 °C25 December 2010	20.4 °C	1,929 mm	43	0
2009	35.0 °C12 May 2009	1.5 °C30 December 2009	20.2 °C	1,852 mm	26	0
2008	32.6 °C22 April 2008	5.7 °C6 January 2008	19.7 °C	2,128 mm	18	0
2007	32.9 °C6 May 2007	3.2 °C20 February 2007	19.6 °C	2,045 mm	22	0
2006	32.2 °C13 April 2006	3.5 °C6 January 2006	19.9 °C	1,741 mm	14	0
2005	35.4 °C20 April 2005	4.5 °C13 January 2005	20.5 °C	1,844 mm	41	0
2004	32.1 °C4 May 2004	4.4 °C11 January 2004	19.5 °C	2,271 mm	17	0
2003	32.5 °C7 April 2003	5.3 °C16 January 2003	19.9 °C	1,781 mm	16	0
2002	32.2 °C19 April 2002	3.6 °C14 January 2002	19.8 °C	1,745 mm	10	0
2001	32.5 °C25 April 2001	3.7 °C11 January 2001	19.9 °C	2,155 mm	22	0
2000	33.7 °C10 April 2000	3.6 °C31 January 2000	19.7 °C	2,062 mm	21	0
1999	34.0 °C27 April 1999	2.3 °C26 December 1999	20.2 °C	2,409 mm	25	0
1998	33.7 °C15 May 1998	4.1 °C5 January 1998	20.2 °C	1,830 mm	21	0
1997	33.0 °C15 May 1997	3.0 °C19 January 1997	19.0 °C	2,342 mm	6	0
1996	31.9 °C18 April 1996	4.4 °C23 January 1996	19.7 °C	2,186 mm	11	0
1995	33.6 °C26 April 1995	4.4 °C26 January 1995	20.1 °C	2,112 mm	35	0
1994	32.2 °C20 May 1994	3.8 °C13 December 1994	19.7 °C	2,236 mm	15	0
1993	31.4 °C20 April 1993	3.8 °C19 January 1993	19.3 °C	2,258 mm	7	0
1992	33.4 °C11 May 1992	3.1 °C6 January 1992	18.9 °C	2,088 mm	28	0
1991	33.3 °C23 April 1991	4.5 °C27 January 1991	19.5 °C	2,301 mm	22	0
1990	32.0 °C3 May 1990	2.1 °C2 January 1990	19.0 °C	2,531 mm	9	0
1989	34.1 °C11 May 1989	3.5 °C19 January 1989	19.5 °C	2,156 mm	31	0
1988	35.4 °C8 April 1988	4.6 °C2 January 1988	19.9 °C	2,058 mm	36	0
1987	35.2 °C29 May 1987	2.7 °C5 January 1987	19.5 °C	2,247 mm	27	0
1986	32.5 °C5 April 1986	4.5 °C19 January 1986	19.3 °C	2,246 mm	30	0
1985	32.9 °C17 May 1985	2.9 °C18 January 1985	19.1 °C	2,202 mm	21	0
1984	33.0 °C22 April 1984	3.8 °C10 February 1984	19.2 °C	2,438 mm	14	0
1983	32.3 °C19 April 1983	-0.6 °C6 January 1983	18.7 °C	2,774 mm	8	1
1982	31.9 °C23 May 1982	2.2 °C27 December 1982	18.8 °C	2,092 mm	12	0
1981	32.9 °C9 May 1981	4.3 °C27 December 1981	19.4 °C	2,446 mm	13	0
1980	35.5 °C16 April 1980	3.5 °C26 January 1980	19.8 °C	1,975 mm	55	0
1979	33.6 °C7 May 1979	3.2 °C12 January 1979	19.5 °C	2,136 mm	35	0
1978	32.0 °C30 April 1978	2.0 °C20 December 1978	19.1 °C	2,218 mm	12	0
1977	32.7 °C24 March 1977	1.7 °C30 January 1977	18.9 °C	2,302 mm	11	0
1976	30.3 °C1 April 1976	2.6 °C15 January 1976	18.7 °C	2,852 mm	2	0
1975	34.3 °C1 May 1975	3.1 °C27 December 1975	19.3 °C	2,206 mm	25	0
1974	30.4 °C25 April 1974	1.3 °C3 January 1974	19.0 °C	2,343 mm	2	0
1973	33.0 °C3 May 1973	3.9 °C30 December 1973	19.4 °C	2,479 mm	21	0
1972	32.2 °C15 May 1972	3.9 °C20 January 1972	19.3 °C	1,880 mm	20	0
1971	31.1 °C28 April 1971	3.3 °C20 December 1971	18.7 °C	2,555 mm	8	0
1970	34.2 °C23 April 1970	1.7 °C30 January 1970	19.4 °C	2,052 mm	33	0
1969	35.1 °C6 May 1969	2.1 °C22 January 1969	19.5 °C	1,970 mm	38	0
1968	32.0 °C22 April 1968	3.4 °C7 February 1968	18.5 °C	2,515 mm	6	0
1967	29.8 °C27 August 1967	3.5 °C2 February 1967	18.9 °C	2,306 mm	0	0
1966	33.3 °C2 May 1966	4.4 °C2 February 1966	18.7 °C	2,314 mm	14	0
1965	32.3 °C26 April 1965	2.2 °C11 February 1965	18.3 °C	2,274 mm	10	0
1964	32.5 °C25 March 1964	2.2 °C30 December 1964	19.4 °C	2,167 mm	11	0
1963	31.0 °C26 April 1963	2.1 °C14 January 1963	18.9 °C	2,149 mm	7	0
1962	33.2 °C26 April 1962	1.1 °C4 January 1962	19.2 °C	2,241 mm	19	0
1961	32.6 °C26 April 1961	3.1 °C17 December 1961	19.1 °C	2,193 mm	12	0
1960	33.4 °C30 April 1960	4.7 °C18 December 1960	19.4 °C	2,236 mm	28	0
1959	32.9 °C12 April 1959	2.5 °C16 January 1959	18.5 °C	2,435 mm	15	0
1958	34.9 °C6 June 1958	1.3 °C31 December 1958	19.4 °C	2,575 mm	36	0
1957	34.0 °C15 May 1957	4.0 °C21 December 1957	19.2 °C	2,018 mm	35	0
1956	33.2 °C15 April 1956	1.6 °C3 January 1956	18.6 °C	2,091 mm	15	0
1955	31.0 °C20 April 1955	1.1 °C26 December 1955	18.3 °C	1,974 mm	4	0
1954	32.5 °C28 April 1954	4.5 °C16 December 1954	18.6 °C	2,038 mm	12	0
1953	29.3 °C29 July 1953	1.9 °C28 January 1953	17.9 °C	1,815 mm	0	0
1952	31.0 °C10 May 1952	3.4 °C31 December 1952	18.5 °C	2,121 mm	5	0
1951	29.6 °C4 September 1951	4.8 °C28 December 1951	18.3 °C	2,426 mm	0	0
1950	31.0 °C16 May 1950	4.4 °C4 January 1950	18.6 °C	2,091 mm	13	0
1949	28.0 °C18 September 1949	2.3 °C12 February 1949	18.0 °C	2,318 mm	0	0
1948	30.7 °C17 April 1948	5.6 °C2 January 1948	18.1 °C	2,027 mm	5	0
1947	31.9 °C17 May 1947	3.8 °C16 January 1947	18.6 °C	2,004 mm	11	0
1946	31.0 °C20 March 1946	5.1 °C3 January 1946	18.3 °C	1,859 mm	5	0
1945	32.9 °C20 April 1945	3.1 °C26 December 1945	18.2 °C	2,361 mm	16	0
1944	30.7 °C25 April 1944	4.0 °C13 January 1944	18.2 °C	2,073 mm	3	0
1943	30.5 °C14 May 1943	4.5 °C23 December 1943	18.0 °C	2,094 mm	1	0
1942	32.6 °C25 April 1942	2.6 °C5 January 1942	18.1 °C	2,000 mm	18	0
1941	31.2 °C24 March 1941	4.6 °C28 December 1941	18.0 °C	2,235 mm	7	0
1940	29.3 °C28 April 1940	2.8 °C7 January 1940	17.7 °C	1,858 mm	0	0

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

26.0 °C

+1.3 °C

Hot days (≥ 30 °C)

29 d/yr

+10

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2000 mm

-115 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	22.2 °C	+1.9 °C	5 mm	-18 mm
Feb	24.6 °C	+2.0 °C	1 mm	-23 mm
Mar	28.4 °C	+2.2 °C	10 mm	-22 mm
Apr	29.0 °C	+0.7 °C	75 mm	+13 mm
May	26.5 °C	-0.7 °C	298 mm	+76 mm
Jun	27.4 °C	+1.4 °C	386 mm	+1 mm
Jul	26.9 °C	+1.5 °C	441 mm	+6 mm
Aug	26.6 °C	+0.9 °C	308 mm	-107 mm
Sep	28.1 °C	+2.0 °C	212 mm	-39 mm
Oct	26.6 °C	+1.6 °C	185 mm	+10 mm
Nov	23.8 °C	+1.2 °C	80 mm	+13 mm
Dec	22.4 °C	+2.0 °C	0 mm	-25 mm

The year's extremes

Hottest day

33.7 °C

26 Apr 2025

Coldest day

5.0 °C

8 Dec 2025

Wettest day

55.2 mm

2 Oct 2025

Windiest day

21.1 km/h

17 Mar 2025

Strongest gust

64.4 km/h

17 Mar 2025

Hottest feels-like

36.4 °C

31 Aug 2025

Coldest feels-like

2.8 °C

8 Dec 2025

Sunniest day

13.0 h

9 May 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 Mengmao?

Mengmao has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 2,115 mm of precipitation per year.

What is the hottest day ever recorded in Mengmao?

The hottest day measured in Mengmao between 1940 and 2025 was 16 April 1980, reaching 35.5 °C.

What is the coldest day in Mengmao?

The coldest day measured in Mengmao between 1940 and 2025 was 6 January 1983, at -0.6 °C.

Does it snow in Mengmao?

Almost never: Mengmao sees virtually no snow, with about 0 frost days per year.

Has the climate of Mengmao warmed?

Yes: Mengmao warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Mengmao?

The wettest day measured in Mengmao between 1940 and 2025 was 18 June 1958, with 234 mm of rain in 24 hours.

What was the windiest day in Mengmao?

The windiest day measured in Mengmao between 1940 and 2025 was 11 April 1985, with winds reaching 22.7 km/h.

What is the warmest month in Mengmao?

The warmest month in Mengmao is June (22.4 °C on average); the coldest is January (13.1 °C).

How much does it rain in Mengmao?

Mengmao receives on average 2,115 mm of precipitation per year, spread over about 195 rainy days.

Is it sunny in Mengmao?

Mengmao gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Are there tropical nights in Mengmao?

Yes: Mengmao has on average 67 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Mengmao?

In Mengmao, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 15 August 2006, and the lowest was -3.5 °C on 6 January 1983.

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