Heroica Ciudad de Tlaxiaco climate — normals and trends

Q: What is the climate of Heroica Ciudad de Tlaxiaco?

Heroica Ciudad de Tlaxiaco has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 1,493 mm of precipitation per year.

Q: What is the hottest day ever recorded in Heroica Ciudad de Tlaxiaco?

The hottest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 15 May 1998, reaching 31.3 °C.

Q: What is the coldest day in Heroica Ciudad de Tlaxiaco?

The coldest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 10 December 2010, at -3.7 °C.

Q: Does it snow in Heroica Ciudad de Tlaxiaco?

Almost never: Heroica Ciudad de Tlaxiaco sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Heroica Ciudad de Tlaxiaco warmed?

Yes: Heroica Ciudad de Tlaxiaco warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Heroica Ciudad de Tlaxiaco?

The wettest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 29 June 1996, with 101 mm of rain in 24 hours.

Q: What was the windiest day in Heroica Ciudad de Tlaxiaco?

The windiest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 11 November 1942, with winds reaching 27.9 km/h.

Q: What is the warmest month in Heroica Ciudad de Tlaxiaco?

The warmest month in Heroica Ciudad de Tlaxiaco is May (17.3 °C on average); the coldest is January (13.7 °C).

Q: How much does it rain in Heroica Ciudad de Tlaxiaco?

Heroica Ciudad de Tlaxiaco receives on average 1,493 mm of precipitation per year, spread over about 181 rainy days.

Q: Is it sunny in Heroica Ciudad de Tlaxiaco?

Heroica Ciudad de Tlaxiaco gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Heroica Ciudad de Tlaxiaco (Mexico) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 15.7 °C and it receives 1,493 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 May (17.3 °C on average) and the coldest is January (13.7 °C). Rainfall peaks in September.

Heroica Ciudad de Tlaxiaco averages 0 frost days, 0 hot days (≥ 30 °C) and 181 rainy days per year.

Heroica Ciudad de Tlaxiaco has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.

The hottest day of the period reached 31.3 °C (on 15 May 1998) and the coldest -3.7 °C (on 10 December 2010).

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

Heroica Ciudad de TlaxiacoOaxaca

coords: 17.27°, -97.68°
period: 1940–2025 · 86 yrs

CwbSubtropical highland, dry winterWarmest monthMayColdest monthJanuaryWettest monthSeptemberDriest monthDecember

Mean daily temperature

15.7°C

Average daily high

22.4°C

Average daily low

10.2°C

Annual rainfall

1,493mm

Sunshine / day

10.5h

Mean relative humidity

74%

Average peak wind

9.3km/h

Seasonal range

3.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

0 d/yr

Rainy days (≥ 1 mm)

181 d/yr

Annual snowfall

0.0 cm

Average feels-like high

23.0 °C

Average feels-like low

9.3 °C

Average peak gust

32.1 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

20.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.3 °C

since 1940

+0.3 °C per decade · r² = 0.83 · 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

31.3 °C

15 May 1998

Coldest day

-3.7 °C

10 December 2010

Wettest day

101 mm

29 June 1996

Windiest day

27.9 km/h

11 November 1942

Strongest gust

88.6 km/h

9 March 2016

Hottest feels-like

34.1 °C

10 May 2024

Coldest feels-like

-7.9 °C

10 December 2010

Sunniest day

13.0 h

29 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	28.9 °C20 May 2025	4.2 °C13 April 2025	17.0 °C	1,919 mm	0	0
2024	30.7 °C10 May 2024	1.4 °C27 November 2024	17.5 °C	1,919 mm	3	0
2023	28.6 °C1 April 2023	1.3 °C19 December 2023	16.9 °C	1,430 mm	0	0
2022	29.8 °C16 April 2022	4.4 °C10 December 2022	16.3 °C	1,739 mm	0	0
2021	29.5 °C1 March 2021	2.8 °C1 January 2021	16.4 °C	1,725 mm	0	0
2020	29.1 °C26 March 2020	4.9 °C22 January 2020	16.8 °C	1,579 mm	0	0
2019	28.1 °C11 March 2019	3.2 °C21 January 2019	16.7 °C	1,672 mm	0	0
2018	27.7 °C30 May 2018	2.0 °C15 January 2018	16.3 °C	1,812 mm	0	0
2017	27.7 °C5 April 2017	1.2 °C11 December 2017	16.2 °C	2,081 mm	0	0
2016	28.3 °C27 March 2016	3.5 °C21 November 2016	16.5 °C	1,839 mm	0	0
2015	28.1 °C5 March 2015	3.1 °C7 February 2015	16.4 °C	1,858 mm	0	0
2014	29.7 °C23 March 2014	2.8 °C4 December 2014	16.3 °C	1,653 mm	0	0
2013	29.3 °C15 April 2013	1.9 °C4 March 2013	16.4 °C	1,837 mm	0	0
2012	28.5 °C3 May 2012	4.0 °C20 November 2012	16.0 °C	1,693 mm	0	0
2011	30.0 °C26 May 2011	0.8 °C30 November 2011	16.4 °C	1,615 mm	1	0
2010	30.4 °C11 May 2010	-3.7 °C10 December 2010	16.4 °C	1,842 mm	4	1
2009	28.5 °C5 April 2009	1.2 °C7 February 2009	16.4 °C	1,329 mm	0	0
2008	28.7 °C11 April 2008	3.2 °C20 November 2008	16.1 °C	1,644 mm	0	0
2007	27.7 °C14 April 2007	2.9 °C13 November 2007	16.1 °C	1,601 mm	0	0
2006	28.1 °C21 April 2006	0.1 °C8 January 2006	16.1 °C	1,611 mm	0	0
2005	29.2 °C17 April 2005	3.9 °C17 January 2005	16.3 °C	1,437 mm	0	0
2004	27.7 °C16 April 2004	1.2 °C30 December 2004	15.7 °C	1,309 mm	0	0
2003	29.5 °C9 March 2003	3.1 °C20 December 2003	16.2 °C	1,478 mm	0	0
2002	29.3 °C29 April 2002	0.6 °C23 November 2002	16.2 °C	1,378 mm	0	0
2001	30.0 °C4 April 2001	4.2 °C23 January 2001	15.8 °C	1,383 mm	1	0
2000	29.5 °C20 April 2000	2.1 °C10 February 2000	15.9 °C	1,379 mm	0	0
1999	30.0 °C7 April 1999	1.4 °C15 February 1999	15.7 °C	1,494 mm	1	0
1998	31.3 °C15 May 1998	3.0 °C18 December 1998	16.6 °C	1,468 mm	5	0
1997	27.9 °C2 March 1997	1.6 °C14 January 1997	15.9 °C	1,668 mm	0	0
1996	26.6 °C5 May 1996	-2.2 °C14 January 1996	16.0 °C	1,508 mm	0	1
1995	27.8 °C23 March 1995	1.4 °C26 November 1995	16.4 °C	1,781 mm	0	0
1994	28.3 °C25 March 1994	4.1 °C5 January 1994	16.4 °C	1,198 mm	0	0
1993	28.3 °C4 June 1993	4.7 °C1 January 1993	16.1 °C	1,436 mm	0	0
1992	27.2 °C22 March 1992	3.9 °C12 December 1992	15.9 °C	1,575 mm	0	0
1991	29.0 °C17 March 1991	2.0 °C5 March 1991	16.2 °C	1,482 mm	0	0
1990	28.1 °C12 March 1990	3.9 °C12 November 1990	16.1 °C	1,792 mm	0	0
1989	27.7 °C20 May 1989	1.7 °C24 February 1989	15.8 °C	1,764 mm	0	0
1988	30.1 °C9 May 1988	2.2 °C28 January 1988	16.3 °C	1,258 mm	1	0
1987	27.8 °C25 March 1987	-1.0 °C28 January 1987	16.1 °C	1,470 mm	0	1
1986	28.2 °C14 April 1986	-0.3 °C14 January 1986	15.6 °C	1,446 mm	0	1
1985	26.6 °C28 April 1985	3.9 °C2 February 1985	15.5 °C	1,633 mm	0	0
1984	29.9 °C28 March 1984	2.3 °C2 January 1984	15.8 °C	1,786 mm	0	0
1983	29.9 °C21 May 1983	2.4 °C21 January 1983	16.1 °C	1,259 mm	0	0
1982	31.0 °C3 April 1982	1.1 °C20 December 1982	16.4 °C	1,260 mm	2	0
1981	29.7 °C4 April 1981	2.0 °C25 November 1981	16.0 °C	1,936 mm	0	0
1980	27.8 °C3 April 1980	0.9 °C18 December 1980	16.3 °C	1,441 mm	0	0
1979	27.2 °C14 March 1979	2.4 °C3 January 1979	16.1 °C	1,263 mm	0	0
1978	28.6 °C8 May 1978	4.0 °C6 February 1978	15.7 °C	1,579 mm	0	0
1977	28.5 °C15 March 1977	3.3 °C22 December 1977	15.6 °C	1,592 mm	0	0
1976	27.1 °C21 March 1976	-0.1 °C25 February 1976	15.3 °C	1,332 mm	0	1
1975	28.7 °C19 April 1975	3.0 °C21 October 1975	15.3 °C	1,637 mm	0	0
1974	27.7 °C12 May 1974	3.1 °C11 February 1974	14.9 °C	1,504 mm	0	0
1973	28.5 °C26 April 1973	1.3 °C30 January 1973	15.3 °C	1,702 mm	0	0
1972	28.0 °C8 April 1972	1.2 °C21 February 1972	15.4 °C	1,525 mm	0	0
1971	29.3 °C28 April 1971	3.3 °C24 December 1971	15.2 °C	1,296 mm	0	0
1970	28.6 °C2 April 1970	3.7 °C14 January 1970	15.5 °C	1,080 mm	0	0
1969	29.2 °C8 May 1969	3.9 °C21 November 1969	15.8 °C	1,383 mm	0	0
1968	26.1 °C17 April 1968	1.5 °C8 February 1968	14.9 °C	1,156 mm	0	0
1967	27.3 °C7 May 1967	2.9 °C14 February 1967	15.0 °C	1,212 mm	0	0
1966	28.7 °C17 May 1966	2.6 °C31 January 1966	15.0 °C	1,331 mm	0	0
1965	27.9 °C7 April 1965	1.2 °C18 January 1965	14.9 °C	1,297 mm	0	0
1964	28.5 °C28 April 1964	4.4 °C14 January 1964	15.0 °C	1,269 mm	0	0
1963	29.1 °C25 April 1963	1.3 °C14 February 1963	15.0 °C	1,281 mm	0	0
1962	26.3 °C30 April 1962	2.3 °C14 November 1962	14.9 °C	1,171 mm	0	0
1961	28.0 °C6 May 1961	-3.1 °C13 February 1961	15.0 °C	1,028 mm	0	1
1960	28.4 °C30 April 1960	0.4 °C14 February 1960	14.8 °C	1,440 mm	0	0
1959	26.0 °C26 April 1959	3.6 °C18 December 1959	14.7 °C	1,775 mm	0	0
1958	28.2 °C7 April 1958	2.1 °C25 January 1958	15.1 °C	1,558 mm	0	0
1957	27.6 °C8 April 1957	1.1 °C10 December 1957	15.0 °C	1,041 mm	0	0
1956	27.6 °C16 April 1956	-2.0 °C13 January 1956	14.2 °C	1,282 mm	0	3
1955	27.9 °C25 April 1955	0.1 °C26 December 1955	14.5 °C	1,458 mm	0	0
1954	27.0 °C6 April 1954	-1.5 °C21 December 1954	14.5 °C	1,474 mm	0	1
1953	28.6 °C21 May 1953	0.5 °C13 January 1953	15.0 °C	1,175 mm	0	0
1952	27.7 °C10 May 1952	1.5 °C27 October 1952	14.7 °C	1,420 mm	0	0
1951	27.7 °C24 April 1951	2.8 °C3 February 1951	15.5 °C	1,342 mm	0	0
1950	26.1 °C11 April 1950	1.1 °C20 December 1950	14.6 °C	1,401 mm	0	0
1949	27.2 °C15 April 1949	2.9 °C2 December 1949	14.7 °C	1,310 mm	0	0
1948	27.5 °C1 April 1948	3.5 °C12 January 1948	14.6 °C	1,795 mm	0	0
1947	27.2 °C5 April 1947	4.0 °C26 December 1947	14.6 °C	1,744 mm	0	0
1946	27.8 °C30 March 1946	3.4 °C30 November 1946	14.7 °C	1,140 mm	0	0
1945	28.5 °C4 April 1945	3.6 °C19 January 1945	14.8 °C	1,485 mm	0	0
1944	28.5 °C11 April 1944	-0.6 °C21 January 1944	14.6 °C	1,594 mm	0	1
1943	27.2 °C13 April 1943	1.5 °C20 December 1943	14.1 °C	1,313 mm	0	0
1942	26.6 °C15 May 1942	2.3 °C30 December 1942	14.4 °C	1,239 mm	0	0
1941	27.9 °C19 April 1941	1.1 °C26 February 1941	14.8 °C	1,302 mm	0	0
1940	27.0 °C1 May 1940	1.2 °C22 December 1940	14.6 °C	1,029 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

24.1 °C

+1.7 °C

Hot days (≥ 30 °C)

0 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1919 mm

+426 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	23.5 °C	+2.2 °C	15 mm	+2 mm
Feb	24.4 °C	+1.7 °C	34 mm	+22 mm
Mar	26.4 °C	+2.3 °C	7 mm	-13 mm
Apr	26.3 °C	+1.5 °C	29 mm	-20 mm
May	25.5 °C	+1.6 °C	162 mm	+26 mm
Jun	22.0 °C	0.0 °C	485 mm	+200 mm
Jul	24.0 °C	+2.2 °C	234 mm	-22 mm
Aug	23.5 °C	+1.6 °C	310 mm	+46 mm
Sep	23.4 °C	+1.9 °C	417 mm	+130 mm
Oct	23.4 °C	+1.7 °C	193 mm	+67 mm
Nov	24.1 °C	+2.5 °C	5 mm	-29 mm
Dec	22.7 °C	+1.4 °C	27 mm	+16 mm

The year's extremes

Hottest day

28.9 °C

20 May 2025

Coldest day

4.2 °C

13 Apr 2025

Wettest day

94.7 mm

19 Jun 2025

Windiest day

27.0 km/h

10 Nov 2025

Strongest gust

77.8 km/h

10 Nov 2025

Hottest feels-like

31.6 °C

20 May 2025

Coldest feels-like

0.7 °C

13 Apr 2025

Sunniest day

12.9 h

18 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 Heroica Ciudad de Tlaxiaco?

Heroica Ciudad de Tlaxiaco has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 1,493 mm of precipitation per year.

What is the hottest day ever recorded in Heroica Ciudad de Tlaxiaco?

The hottest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 15 May 1998, reaching 31.3 °C.

What is the coldest day in Heroica Ciudad de Tlaxiaco?

The coldest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 10 December 2010, at -3.7 °C.

Does it snow in Heroica Ciudad de Tlaxiaco?

Almost never: Heroica Ciudad de Tlaxiaco sees virtually no snow, with about 0 frost days per year.

Has the climate of Heroica Ciudad de Tlaxiaco warmed?

Yes: Heroica Ciudad de Tlaxiaco warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Heroica Ciudad de Tlaxiaco?

The wettest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 29 June 1996, with 101 mm of rain in 24 hours.

What was the windiest day in Heroica Ciudad de Tlaxiaco?

The windiest day measured in Heroica Ciudad de Tlaxiaco between 1940 and 2025 was 11 November 1942, with winds reaching 27.9 km/h.

What is the warmest month in Heroica Ciudad de Tlaxiaco?

The warmest month in Heroica Ciudad de Tlaxiaco is May (17.3 °C on average); the coldest is January (13.7 °C).

How much does it rain in Heroica Ciudad de Tlaxiaco?

Heroica Ciudad de Tlaxiaco receives on average 1,493 mm of precipitation per year, spread over about 181 rainy days.

Is it sunny in Heroica Ciudad de Tlaxiaco?

Heroica Ciudad de Tlaxiaco gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Are there tropical nights in Heroica Ciudad de Tlaxiaco?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Heroica Ciudad de Tlaxiaco.

What was the most extreme apparent temperature in Heroica Ciudad de Tlaxiaco?

In Heroica Ciudad de Tlaxiaco, between 1940 and 2025, the highest apparent temperature reached 34.1 °C on 10 May 2024, and the lowest was -7.9 °C on 10 December 2010.

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