Mengla climate — normals and trends

Q: What is the climate of Mengla?

Mengla has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 21.5 °C and it receives 1,696 mm of precipitation per year.

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

The hottest day measured in Mengla between 1940 and 2025 was 20 May 2019, reaching 40.5 °C.

Q: What is the coldest day in Mengla?

The coldest day measured in Mengla between 1940 and 2025 was 25 December 1999, at 1.2 °C.

Q: Does it snow in Mengla?

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

Q: Has the climate of Mengla warmed?

Yes: Mengla warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Mengla?

The wettest day measured in Mengla between 1940 and 2025 was 19 July 1983, with 174 mm of rain in 24 hours.

Q: What was the windiest day in Mengla?

The windiest day measured in Mengla between 1940 and 2025 was 24 July 1971, with winds reaching 21.2 km/h.

Q: What is the warmest month in Mengla?

The warmest month in Mengla is June (24.9 °C on average); the coldest is January (16.0 °C).

Q: How much does it rain in Mengla?

Mengla receives on average 1,696 mm of precipitation per year, spread over about 180 rainy days.

Q: Is it sunny in Mengla?

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

Mengla (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 21.5 °C and it receives 1,696 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 (24.9 °C on average) and the coldest is January (16.0 °C). Rainfall peaks in August.

Mengla averages 0 frost days, 90 hot days (≥ 30 °C) and 180 rainy days per year.

Mengla has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.5 °C (on 20 May 2019) and the coldest 1.2 °C (on 25 December 1999).

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

MenglaYunnan

coords: 21.46°, 101.56°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJuneColdest monthJanuaryWettest monthAugustDriest monthFebruary

Mean daily temperature

21.5°C

Average daily high

27.3°C

Average daily low

17.3°C

Annual rainfall

1,696mm

Sunshine / day

8.8h

Mean relative humidity

80%

Average peak wind

8.2km/h

Seasonal range

8.9°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

90 d/yr

Rainy days (≥ 1 mm)

180 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.8 °C

Average feels-like low

19.1 °C

Average peak gust

27.6 km/h

Tropical nights (≥ 20 °C)

143 d/yr

Solar radiation

16.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.0 °C

since 1940

+0.2 °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

40.5 °C

20 May 2019

Coldest day

1.2 °C

25 December 1999

Wettest day

174 mm

19 July 1983

Windiest day

21.2 km/h

24 July 1971

Strongest gust

64.8 km/h

23 July 2003

Hottest feels-like

41.8 °C

20 May 2019

Coldest feels-like

-1.2 °C

25 December 1999

Sunniest day

12.9 h

17 July 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.5 °C25 April 2025	6.5 °C30 November 2025	22.1 °C	1,800 mm	117
2024	37.7 °C8 April 2024	9.7 °C5 February 2024	22.9 °C	1,625 mm	161
2023	37.7 °C7 May 2023	8.0 °C15 January 2023	22.8 °C	1,280 mm	147
2022	35.6 °C28 April 2022	8.7 °C19 December 2022	22.3 °C	1,678 mm	118
2021	36.3 °C24 April 2021	6.4 °C14 January 2021	22.1 °C	1,598 mm	144
2020	36.7 °C31 March 2020	7.3 °C26 January 2020	22.6 °C	1,339 mm	143
2019	40.5 °C20 May 2019	3.4 °C8 December 2019	23.1 °C	890 mm	195
2018	34.7 °C13 April 2018	8.1 °C7 February 2018	21.8 °C	1,871 mm	89
2017	37.0 °C4 May 2017	3.7 °C21 December 2017	22.4 °C	1,828 mm	133
2016	37.6 °C11 May 2016	4.4 °C25 January 2016	22.4 °C	1,405 mm	143
2015	35.7 °C6 May 2015	6.3 °C14 January 2015	22.4 °C	1,575 mm	145
2014	38.2 °C23 April 2014	4.5 °C23 January 2014	22.4 °C	1,452 mm	144
2013	35.3 °C15 June 2013	4.8 °C18 December 2013	22.3 °C	1,566 mm	154
2012	37.2 °C3 May 2012	6.6 °C16 January 2012	22.6 °C	1,525 mm	119
2011	34.2 °C26 July 2011	8.6 °C11 February 2011	21.8 °C	1,421 mm	94
2010	36.3 °C8 April 2010	7.7 °C4 January 2010	22.6 °C	1,562 mm	141
2009	34.7 °C9 May 2009	8.1 °C14 January 2009	22.2 °C	1,493 mm	127
2008	35.0 °C9 April 2008	5.9 °C2 December 2008	21.7 °C	2,138 mm	85
2007	35.5 °C2 April 2007	8.1 °C23 February 2007	21.9 °C	1,609 mm	113
2006	36.9 °C13 April 2006	6.0 °C23 December 2006	22.2 °C	1,457 mm	116
2005	35.9 °C17 May 2005	7.7 °C20 December 2005	22.2 °C	1,467 mm	122
2004	34.2 °C3 May 2004	6.9 °C30 January 2004	21.5 °C	1,596 mm	96
2003	37.3 °C8 May 2003	8.4 °C7 January 2003	22.3 °C	1,222 mm	114
2002	34.8 °C21 April 2002	8.7 °C22 December 2002	21.9 °C	1,682 mm	90
2001	35.0 °C10 April 2001	6.5 °C26 December 2001	22.0 °C	1,706 mm	90
2000	33.7 °C3 April 2000	7.7 °C14 January 2000	21.7 °C	1,658 mm	71
1999	34.3 °C25 April 1999	1.2 °C25 December 1999	21.9 °C	1,685 mm	79
1998	34.9 °C12 May 1998	7.1 °C12 February 1998	22.6 °C	1,495 mm	123
1997	35.3 °C16 May 1997	6.8 °C11 February 1997	21.7 °C	1,630 mm	72
1996	33.9 °C10 April 1996	4.9 °C1 January 1996	21.6 °C	1,899 mm	77
1995	36.4 °C22 April 1995	5.8 °C31 December 1995	21.9 °C	1,758 mm	98
1994	35.8 °C11 April 1994	8.1 °C4 January 1994	21.8 °C	2,263 mm	84
1993	33.8 °C6 April 1993	4.0 °C29 December 1993	21.5 °C	1,559 mm	81
1992	36.7 °C9 May 1992	5.5 °C5 January 1992	21.4 °C	1,515 mm	121
1991	36.3 °C18 April 1991	7.4 °C17 February 1991	21.8 °C	1,903 mm	96
1990	35.7 °C22 April 1990	6.7 °C11 January 1990	21.6 °C	1,741 mm	66
1989	36.5 °C21 April 1989	4.8 °C9 January 1989	21.5 °C	1,664 mm	85
1988	36.1 °C7 April 1988	7.7 °C20 December 1988	21.8 °C	1,561 mm	86
1987	35.5 °C22 May 1987	6.0 °C26 December 1987	21.7 °C	1,547 mm	108
1986	34.8 °C31 March 1986	5.9 °C9 January 1986	21.3 °C	1,765 mm	88
1985	34.5 °C7 April 1985	4.5 °C25 December 1985	21.4 °C	1,927 mm	67
1984	36.6 °C21 April 1984	6.8 °C22 January 1984	21.7 °C	1,863 mm	98
1983	37.9 °C18 April 1983	5.0 °C2 December 1983	21.4 °C	2,049 mm	121
1982	34.1 °C13 May 1982	3.3 °C29 December 1982	21.2 °C	2,123 mm	86
1981	34.8 °C8 April 1981	7.4 °C18 January 1981	21.5 °C	2,231 mm	86
1980	37.1 °C30 April 1980	7.0 °C13 January 1980	21.9 °C	1,635 mm	95
1979	36.3 °C13 May 1979	6.1 °C13 January 1979	21.6 °C	1,511 mm	114
1978	34.0 °C1 July 1978	5.5 °C17 December 1978	21.0 °C	2,068 mm	74
1977	34.5 °C17 April 1977	7.4 °C26 January 1977	20.9 °C	1,903 mm	83
1976	34.2 °C16 April 1976	3.2 °C1 January 1976	20.8 °C	1,924 mm	78
1975	36.5 °C29 April 1975	1.7 °C31 December 1975	21.0 °C	1,789 mm	93
1974	33.0 °C11 March 1974	1.4 °C4 January 1974	20.8 °C	1,687 mm	60
1973	34.3 °C9 April 1973	2.1 °C31 December 1973	21.3 °C	1,956 mm	84
1972	35.5 °C13 May 1972	6.5 °C22 January 1972	21.0 °C	1,954 mm	70
1971	34.5 °C18 May 1971	3.4 °C6 January 1971	20.3 °C	2,141 mm	56
1970	34.4 °C11 May 1970	5.7 °C21 December 1970	21.3 °C	1,897 mm	89
1969	37.1 °C5 May 1969	6.8 °C27 January 1969	21.5 °C	1,579 mm	120
1968	33.9 °C28 May 1968	5.5 °C20 January 1968	21.0 °C	2,011 mm	62
1967	35.1 °C5 April 1967	5.9 °C18 January 1967	20.9 °C	1,739 mm	77
1966	37.9 °C2 May 1966	8.0 °C2 January 1966	21.3 °C	1,789 mm	54
1965	37.2 °C15 May 1965	6.1 °C1 January 1965	20.8 °C	1,917 mm	68
1964	35.1 °C11 April 1964	5.1 °C29 December 1964	21.1 °C	1,730 mm	73
1963	37.3 °C25 April 1963	4.5 °C28 January 1963	21.0 °C	1,890 mm	98
1962	36.1 °C17 April 1962	4.5 °C29 December 1962	21.2 °C	1,469 mm	93
1961	34.0 °C25 April 1961	5.1 °C19 January 1961	21.3 °C	2,090 mm	71
1960	39.2 °C29 April 1960	6.7 °C3 January 1960	21.6 °C	1,899 mm	96
1959	38.1 °C11 April 1959	6.6 °C2 January 1959	21.4 °C	1,541 mm	77
1958	36.5 °C26 April 1958	5.5 °C18 December 1958	21.2 °C	1,819 mm	100
1957	37.0 °C16 May 1957	6.6 °C5 February 1957	21.5 °C	1,655 mm	98
1956	37.2 °C19 April 1956	4.4 °C4 January 1956	21.1 °C	1,501 mm	85
1955	34.7 °C22 March 1955	4.6 °C13 January 1955	20.7 °C	1,729 mm	55
1954	35.6 °C27 April 1954	4.1 °C16 December 1954	21.0 °C	1,385 mm	73
1953	33.1 °C22 July 1953	6.2 °C26 December 1953	20.6 °C	1,551 mm	56
1952	35.7 °C7 May 1952	6.8 °C13 December 1952	21.1 °C	1,686 mm	55
1951	34.4 °C11 April 1951	7.4 °C31 January 1951	20.7 °C	1,804 mm	41
1950	36.6 °C24 April 1950	6.7 °C3 January 1950	21.1 °C	1,638 mm	53
1949	31.9 °C12 April 1949	6.3 °C17 January 1949	20.9 °C	1,515 mm	32
1948	32.5 °C14 March 1948	4.9 °C4 January 1948	20.5 °C	1,566 mm	36
1947	34.1 °C8 May 1947	5.4 °C30 December 1947	20.6 °C	1,521 mm	25
1946	35.5 °C19 March 1946	4.6 °C11 January 1946	20.8 °C	1,099 mm	57
1945	33.9 °C2 April 1945	6.9 °C18 January 1945	20.4 °C	1,878 mm	23
1944	34.5 °C9 April 1944	6.5 °C10 December 1944	20.8 °C	1,678 mm	53
1943	34.3 °C27 April 1943	6.7 °C11 December 1943	20.5 °C	1,724 mm	60
1942	36.0 °C17 April 1942	6.2 °C7 December 1942	20.2 °C	1,849 mm	44
1941	33.5 °C26 April 1941	7.7 °C24 January 1941	20.5 °C	1,826 mm	43
1940	34.1 °C26 April 1940	4.6 °C1 January 1940	20.5 °C	1,709 mm	30

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

28.0 °C

+0.7 °C

Hot days (≥ 30 °C)

117 d/yr

+27

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1800 mm

+104 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	24.1 °C	+0.7 °C	3 mm	-27 mm
Feb	27.5 °C	+1.3 °C	25 mm	-0 mm
Mar	29.7 °C	+0.6 °C	10 mm	-38 mm
Apr	30.6 °C	0.0 °C	84 mm	-14 mm
May	29.5 °C	-0.5 °C	212 mm	+18 mm
Jun	29.7 °C	+0.7 °C	322 mm	+67 mm
Jul	28.6 °C	+0.2 °C	524 mm	+211 mm
Aug	29.2 °C	+1.0 °C	264 mm	-60 mm
Sep	29.8 °C	+1.7 °C	170 mm	-53 mm
Oct	28.5 °C	+1.6 °C	105 mm	-5 mm
Nov	24.6 °C	-0.1 °C	78 mm	+28 mm
Dec	24.6 °C	+2.0 °C	4 mm	-25 mm

The year's extremes

Hottest day

35.5 °C

25 Apr 2025

Coldest day

6.5 °C

30 Nov 2025

Wettest day

88.3 mm

17 Jul 2025

Windiest day

18.0 km/h

26 Jan 2025

Strongest gust

53.6 km/h

1 Jun 2025

Hottest feels-like

39.0 °C

13 Jun 2025

Coldest feels-like

5.2 °C

30 Nov 2025

Sunniest day

12.9 h

14 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 Mengla?

Mengla has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 21.5 °C and it receives 1,696 mm of precipitation per year.

What is the hottest day ever recorded in Mengla?

The hottest day measured in Mengla between 1940 and 2025 was 20 May 2019, reaching 40.5 °C.

What is the coldest day in Mengla?

The coldest day measured in Mengla between 1940 and 2025 was 25 December 1999, at 1.2 °C.

Does it snow in Mengla?

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

Has the climate of Mengla warmed?

Yes: Mengla warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Mengla?

The wettest day measured in Mengla between 1940 and 2025 was 19 July 1983, with 174 mm of rain in 24 hours.

What was the windiest day in Mengla?

The windiest day measured in Mengla between 1940 and 2025 was 24 July 1971, with winds reaching 21.2 km/h.

What is the warmest month in Mengla?

The warmest month in Mengla is June (24.9 °C on average); the coldest is January (16.0 °C).

How much does it rain in Mengla?

Mengla receives on average 1,696 mm of precipitation per year, spread over about 180 rainy days.

Is it sunny in Mengla?

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

Are there tropical nights in Mengla?

Yes: Mengla has on average 143 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Mengla?

In Mengla, between 1940 and 2025, the highest apparent temperature reached 41.8 °C on 20 May 2019, and the lowest was -1.2 °C on 25 December 1999.

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