Veinticinco de Mayo climate — normals and trends

Q: What is the climate of Veinticinco de Mayo?

Veinticinco de Mayo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 908 mm of precipitation per year.

Q: What is the hottest day ever recorded in Veinticinco de Mayo?

The hottest day measured in Veinticinco de Mayo between 1940 and 2025 was 29 January 1950, reaching 40.9 °C.

Q: What is the coldest day in Veinticinco de Mayo?

The coldest day measured in Veinticinco de Mayo between 1940 and 2025 was 14 June 1967, at -7.2 °C.

Q: Does it snow in Veinticinco de Mayo?

Almost never: Veinticinco de Mayo sees virtually no snow, with about 10 frost days per year.

Q: Has the climate of Veinticinco de Mayo warmed?

Between 1940 and 2025, no statistically significant temperature trend emerges in Veinticinco de Mayo.

Q: What is the wettest day in Veinticinco de Mayo?

The wettest day measured in Veinticinco de Mayo between 1940 and 2025 was 18 April 2003, with 133 mm of rain in 24 hours.

Q: What was the windiest day in Veinticinco de Mayo?

The windiest day measured in Veinticinco de Mayo between 1940 and 2025 was 29 May 1984, with winds reaching 53.4 km/h.

Q: What is the warmest month in Veinticinco de Mayo?

The warmest month in Veinticinco de Mayo is January (23.4 °C on average); the coldest is July (8.9 °C).

Q: How much does it rain in Veinticinco de Mayo?

Veinticinco de Mayo receives on average 908 mm of precipitation per year, spread over about 90 rainy days.

Q: Is it sunny in Veinticinco de Mayo?

Veinticinco de Mayo gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.

Veinticinco de Mayo (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.1 °C and it receives 908 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 January (23.4 °C on average) and the coldest is July (8.9 °C). Rainfall peaks in October.

Veinticinco de Mayo averages 10 frost days, 42 hot days (≥ 30 °C) and 90 rainy days per year.

No statistically significant temperature trend emerges for Veinticinco de Mayo between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.

The hottest day of the period reached 40.9 °C (on 29 January 1950) and the coldest -7.2 °C (on 14 June 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

Veinticinco de MayoBuenos Aires

coords: -35.43°, -60.17°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthOctoberDriest monthJune

Mean daily temperature

16.1°C

Average daily high

21.8°C

Average daily low

10.9°C

Annual rainfall

908mm

Sunshine / day

9.5h

Mean relative humidity

71%

Average peak wind

18.4km/h

Seasonal range

14.5°C

Frost days (< 0 °C)

10 d/yr

Hot days (≥ 30 °C)

42 d/yr

Rainy days (≥ 1 mm)

90 d/yr

Annual snowfall

0.0 cm

Average feels-like high

21.1 °C

Average feels-like low

9.0 °C

Average peak gust

35.2 km/h

Tropical nights (≥ 20 °C)

17 d/yr

Solar radiation

17.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

No clear trend over this period

Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.

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

40.9 °C

29 January 1950

Coldest day

-7.2 °C

14 June 1967

Wettest day

133 mm

18 April 2003

Windiest day

53.4 km/h

29 May 1984

Strongest gust

99.7 km/h

4 September 2004

Hottest feels-like

42.7 °C

1 February 1947

Coldest feels-like

-11.6 °C

14 June 1967

Snowiest day

1.1 cm

7 July 1960

Sunniest day

14.0 h

3 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.5 °C31 December 2025	-5.8 °C1 July 2025	16.8 °C	1,180 mm	60	12
2024	37.2 °C1 February 2024	-5.3 °C10 July 2024	16.6 °C	803 mm	55	19
2023	38.2 °C12 February 2023	-3.6 °C18 June 2023	17.1 °C	664 mm	71	8
2022	40.9 °C14 January 2022	-4.2 °C3 July 2022	16.0 °C	731 mm	50	18
2021	37.2 °C29 December 2021	-4.2 °C10 August 2021	16.5 °C	784 mm	55	10
2020	35.4 °C10 December 2020	-3.1 °C14 July 2020	16.2 °C	730 mm	46	10
2019	37.5 °C10 December 2019	-4.5 °C6 July 2019	16.4 °C	683 mm	41	10
2018	36.0 °C11 January 2018	-4.9 °C24 June 2018	16.4 °C	1,012 mm	52	7
2017	35.6 °C29 December 2017	-2.3 °C12 June 2017	17.0 °C	981 mm	51	4
2016	36.1 °C17 December 2016	-2.0 °C17 July 2016	16.0 °C	819 mm	54	5
2015	35.2 °C28 December 2015	-3.6 °C23 June 2015	16.6 °C	741 mm	46	5
2014	39.2 °C18 January 2014	-2.8 °C19 June 2014	16.3 °C	1,308 mm	40	9
2013	36.2 °C24 December 2013	-3.3 °C19 June 2013	16.0 °C	712 mm	54	17
2012	38.9 °C9 January 2012	-4.8 °C30 July 2012	16.3 °C	1,177 mm	46	17
2011	36.1 °C20 December 2011	-4.6 °C6 July 2011	16.1 °C	635 mm	51	19
2010	35.8 °C22 December 2010	-4.5 °C16 July 2010	15.8 °C	887 mm	42	11
2009	36.0 °C24 January 2009	-5.1 °C24 June 2009	16.3 °C	761 mm	50	20
2008	36.0 °C8 January 2008	-3.3 °C30 May 2008	16.1 °C	812 mm	46	10
2007	35.3 °C21 December 2007	-4.0 °C18 June 2007	14.9 °C	1,053 mm	28	22
2006	36.5 °C9 January 2006	-2.8 °C1 August 2006	15.9 °C	1,015 mm	30	10
2005	34.9 °C5 January 2005	-3.2 °C6 July 2005	15.7 °C	826 mm	35	5
2004	35.1 °C27 January 2004	-4.6 °C11 July 2004	16.0 °C	793 mm	33	8
2003	37.4 °C30 January 2003	-3.4 °C8 June 2003	15.7 °C	1,101 mm	35	16
2002	34.6 °C27 February 2002	-4.1 °C23 June 2002	15.9 °C	1,332 mm	30	12
2001	37.3 °C5 January 2001	-2.3 °C5 July 2001	16.2 °C	1,307 mm	40	8
2000	35.7 °C20 January 2000	-2.7 °C23 July 2000	15.4 °C	1,166 mm	34	9
1999	36.5 °C26 December 1999	-3.1 °C22 July 1999	15.4 °C	826 mm	33	12
1998	34.6 °C26 December 1998	-2.0 °C14 September 1998	15.5 °C	924 mm	19	4
1997	32.7 °C14 April 1997	-5.2 °C5 August 1997	16.0 °C	1,117 mm	36	7
1996	35.1 °C3 January 1996	-4.0 °C19 June 1996	15.7 °C	1,070 mm	33	18
1995	39.0 °C18 December 1995	-6.3 °C29 June 1995	15.3 °C	712 mm	37	21
1994	35.9 °C10 December 1994	-4.3 °C10 July 1994	15.9 °C	885 mm	43	9
1993	34.5 °C22 January 1993	-3.9 °C14 July 1993	15.5 °C	1,318 mm	39	12
1992	34.0 °C8 March 1992	-5.3 °C2 August 1992	15.5 °C	915 mm	29	17
1991	34.8 °C26 February 1991	-4.6 °C7 June 1991	15.6 °C	1,109 mm	20	13
1990	37.8 °C27 January 1990	-4.0 °C22 July 1990	15.8 °C	969 mm	25	16
1989	38.0 °C5 January 1989	-1.7 °C6 July 1989	16.5 °C	668 mm	60	5
1988	36.4 °C3 December 1988	-6.2 °C12 July 1988	15.2 °C	887 mm	41	20
1987	37.4 °C28 January 1987	-3.8 °C14 June 1987	15.9 °C	830 mm	42	7
1986	37.0 °C25 January 1986	-2.3 °C21 July 1986	16.0 °C	919 mm	37	3
1985	34.9 °C3 January 1985	-3.7 °C11 July 1985	16.1 °C	1,018 mm	42	7
1984	35.4 °C18 January 1984	-4.1 °C27 June 1984	15.3 °C	1,090 mm	26	13
1983	37.3 °C22 January 1983	-4.5 °C1 August 1983	15.7 °C	957 mm	46	25
1982	37.0 °C25 December 1982	-4.0 °C16 June 1982	16.1 °C	977 mm	39	7
1981	34.8 °C27 February 1981	-3.6 °C23 July 1981	16.2 °C	854 mm	35	13
1980	38.9 °C21 March 1980	-5.1 °C2 July 1980	16.5 °C	1,097 mm	47	13
1979	35.1 °C25 February 1979	-3.0 °C15 June 1979	16.1 °C	596 mm	45	6
1978	34.9 °C18 January 1978	-3.3 °C14 August 1978	15.8 °C	898 mm	27	13
1977	34.4 °C8 January 1977	-3.2 °C1 September 1977	16.0 °C	997 mm	35	10
1976	34.1 °C17 January 1976	-4.1 °C10 July 1976	15.0 °C	1,112 mm	23	19
1975	37.8 °C30 December 1975	-3.9 °C26 July 1975	15.8 °C	1,002 mm	50	9
1974	35.7 °C22 December 1974	-3.9 °C13 June 1974	15.7 °C	784 mm	37	15
1973	34.6 °C11 January 1973	-1.8 °C11 August 1973	15.3 °C	943 mm	24	8
1972	36.3 °C10 January 1972	-3.8 °C13 July 1972	15.8 °C	1,063 mm	37	9
1971	39.7 °C29 December 1971	-4.9 °C17 June 1971	15.5 °C	702 mm	39	12
1970	37.3 °C24 December 1970	-6.8 °C1 July 1970	15.9 °C	857 mm	40	16
1969	38.5 °C31 January 1969	-1.8 °C18 June 1969	16.0 °C	1,077 mm	46	9
1968	35.9 °C3 December 1968	-3.0 °C5 July 1968	16.1 °C	702 mm	45	4
1967	36.0 °C25 December 1967	-7.2 °C14 June 1967	16.1 °C	1,010 mm	47	22
1966	32.9 °C5 January 1966	-5.1 °C24 July 1966	15.3 °C	836 mm	16	11
1965	37.0 °C18 February 1965	-4.6 °C11 July 1965	15.5 °C	751 mm	49	17
1964	36.7 °C25 January 1964	-3.7 °C20 August 1964	14.7 °C	883 mm	28	19
1963	36.2 °C1 January 1963	-2.0 °C9 August 1963	15.4 °C	1,130 mm	32	12
1962	34.7 °C28 December 1962	-4.8 °C19 July 1962	15.1 °C	599 mm	38	22
1961	35.4 °C1 January 1961	-4.4 °C13 June 1961	15.4 °C	1,025 mm	31	19
1960	37.8 °C11 January 1960	-4.3 °C8 July 1960	15.7 °C	710 mm	56	16
1959	36.6 °C4 February 1959	-0.9 °C16 July 1959	15.9 °C	832 mm	36	2
1958	33.1 °C4 March 1958	-3.3 °C17 June 1958	15.8 °C	908 mm	13	8
1957	39.5 °C11 January 1957	-3.9 °C14 July 1957	16.1 °C	1,121 mm	47	8
1956	37.2 °C4 January 1956	-0.4 °C11 June 1956	17.1 °C	722 mm	65	2
1955	40.4 °C5 January 1955	-3.2 °C29 July 1955	16.7 °C	737 mm	59	7
1954	36.5 °C7 December 1954	-1.8 °C5 August 1954	16.3 °C	762 mm	42	4
1953	38.5 °C4 January 1953	0.2 °C18 August 1953	17.2 °C	854 mm	35	0
1952	39.3 °C27 December 1952	-1.4 °C8 August 1952	16.5 °C	906 mm	50	2
1951	35.3 °C7 January 1951	-2.5 °C27 June 1951	17.1 °C	1,044 mm	36	2
1950	40.9 °C29 January 1950	-2.1 °C31 July 1950	16.9 °C	634 mm	73	6
1949	40.1 °C25 February 1949	-1.1 °C16 July 1949	16.5 °C	778 mm	67	2
1948	37.6 °C22 February 1948	-3.1 °C8 August 1948	17.4 °C	894 mm	72	8
1947	40.1 °C1 February 1947	-2.4 °C10 July 1947	17.9 °C	561 mm	89	1
1946	40.5 °C12 February 1946	-1.5 °C14 June 1946	17.1 °C	726 mm	73	2
1945	37.1 °C10 January 1945	-5.0 °C9 July 1945	16.7 °C	745 mm	69	6
1944	35.8 °C12 February 1944	-0.6 °C27 June 1944	16.9 °C	659 mm	39	2
1943	35.6 °C16 March 1943	-3.5 °C15 August 1943	17.2 °C	1,139 mm	55	4
1942	33.2 °C9 January 1942	-3.5 °C19 June 1942	15.4 °C	1,295 mm	23	13
1941	35.8 °C11 February 1941	-1.3 °C18 July 1941	15.7 °C	1,021 mm	22	1
1940	34.8 °C29 December 1940	-0.9 °C5 July 1940	15.5 °C	957 mm	29	3

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

22.3 °C

+0.5 °C

Hot days (≥ 30 °C)

60 d/yr

+18

Frost days (< 0 °C)

12 d/yr

Annual rainfall

1180 mm

+272 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.1 °C	+2.6 °C	18 mm	-81 mm
Feb	29.6 °C	+1.3 °C	181 mm	+88 mm
Mar	25.4 °C	-0.5 °C	141 mm	+43 mm
Apr	21.3 °C	-0.6 °C	61 mm	-24 mm
May	18.9 °C	+1.0 °C	150 mm	+92 mm
Jun	14.2 °C	-0.3 °C	4 mm	-39 mm
Jul	14.5 °C	+0.4 °C	88 mm	+44 mm
Aug	16.7 °C	+0.5 °C	132 mm	+87 mm
Sep	19.1 °C	+0.6 °C	122 mm	+57 mm
Oct	22.7 °C	+1.3 °C	111 mm	+11 mm
Nov	24.1 °C	-0.9 °C	115 mm	+18 mm
Dec	29.9 °C	+1.7 °C	57 mm	-25 mm

The year's extremes

Hottest day

37.5 °C

31 Dec 2025

Coldest day

-5.8 °C

1 Jul 2025

Wettest day

70.3 mm

19 Aug 2025

Windiest day

42.3 km/h

20 Aug 2025

Strongest gust

71.3 km/h

23 Jun 2025

Hottest feels-like

40.3 °C

21 Feb 2025

Coldest feels-like

-10.0 °C

1 Jul 2025

Sunniest day

14.0 h

2 Jan 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 Veinticinco de Mayo?

Veinticinco de Mayo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 908 mm of precipitation per year.

What is the hottest day ever recorded in Veinticinco de Mayo?

The hottest day measured in Veinticinco de Mayo between 1940 and 2025 was 29 January 1950, reaching 40.9 °C.

What is the coldest day in Veinticinco de Mayo?

The coldest day measured in Veinticinco de Mayo between 1940 and 2025 was 14 June 1967, at -7.2 °C.

Does it snow in Veinticinco de Mayo?

Almost never: Veinticinco de Mayo sees virtually no snow, with about 10 frost days per year.

Has the climate of Veinticinco de Mayo warmed?

Between 1940 and 2025, no statistically significant temperature trend emerges in Veinticinco de Mayo.

What is the wettest day in Veinticinco de Mayo?

The wettest day measured in Veinticinco de Mayo between 1940 and 2025 was 18 April 2003, with 133 mm of rain in 24 hours.

What was the windiest day in Veinticinco de Mayo?

The windiest day measured in Veinticinco de Mayo between 1940 and 2025 was 29 May 1984, with winds reaching 53.4 km/h.

What is the warmest month in Veinticinco de Mayo?

The warmest month in Veinticinco de Mayo is January (23.4 °C on average); the coldest is July (8.9 °C).

How much does it rain in Veinticinco de Mayo?

Veinticinco de Mayo receives on average 908 mm of precipitation per year, spread over about 90 rainy days.

Is it sunny in Veinticinco de Mayo?

Veinticinco de Mayo gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.

What is the biggest single-day snowfall in Veinticinco de Mayo?

The heaviest 24-hour snowfall measured in Veinticinco de Mayo between 1940 and 2025 was 7 July 1960, with 1.1 cm.

Are there tropical nights in Veinticinco de Mayo?

Yes: Veinticinco de Mayo has on average 17 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Veinticinco de Mayo?

In Veinticinco de Mayo, between 1940 and 2025, the highest apparent temperature reached 42.7 °C on 1 February 1947, and the lowest was -11.6 °C on 14 June 1967.

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