Arroyito climate — normals and trends

Q: What is the climate of Arroyito?

Arroyito has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 972 mm of precipitation per year.

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

The hottest day measured in Arroyito between 1940 and 2025 was 4 January 1963, reaching 42.1 °C.

Q: What is the coldest day in Arroyito?

The coldest day measured in Arroyito between 1940 and 2025 was 1 July 2025, at -5.4 °C.

Q: Does it snow in Arroyito?

Almost never: Arroyito sees virtually no snow, with about 3 frost days per year.

Q: Has the climate of Arroyito warmed?

Between 1940 and 2025, no statistically significant temperature trend emerges in Arroyito.

Q: What is the wettest day in Arroyito?

The wettest day measured in Arroyito between 1940 and 2025 was 9 November 1955, with 134 mm of rain in 24 hours.

Q: What was the windiest day in Arroyito?

The windiest day measured in Arroyito between 1940 and 2025 was 30 October 2022, with winds reaching 45.3 km/h.

Q: What is the warmest month in Arroyito?

The warmest month in Arroyito is January (25.2 °C on average); the coldest is July (11.2 °C).

Q: How much does it rain in Arroyito?

Arroyito receives on average 972 mm of precipitation per year, spread over about 93 rainy days.

Q: Is it sunny in Arroyito?

Arroyito gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Arroyito (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.4 °C and it receives 972 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 (25.2 °C on average) and the coldest is July (11.2 °C). Rainfall peaks in January.

Arroyito averages 3 frost days, 70 hot days (≥ 30 °C) and 93 rainy days per year.

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

The hottest day of the period reached 42.1 °C (on 4 January 1963) and the coldest -5.4 °C (on 1 July 2025).

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

ArroyitoCordoba

coords: -31.42°, -63.05°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

18.4°C

Average daily high

24.0°C

Average daily low

13.6°C

Annual rainfall

972mm

Sunshine / day

9.6h

Mean relative humidity

69%

Average peak wind

17.1km/h

Seasonal range

14.0°C

Frost days (< 0 °C)

3 d/yr

Hot days (≥ 30 °C)

70 d/yr

Rainy days (≥ 1 mm)

93 d/yr

Annual snowfall

0.0 cm

Average feels-like high

24.2 °C

Average feels-like low

12.5 °C

Average peak gust

34.4 km/h

Tropical nights (≥ 20 °C)

55 d/yr

Solar radiation

17.5 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

42.1 °C

4 January 1963

Coldest day

-5.4 °C

1 July 2025

Wettest day

134 mm

9 November 1955

Windiest day

45.3 km/h

30 October 2022

Strongest gust

86.4 km/h

30 August 2000

Hottest feels-like

47.0 °C

3 February 2024

Coldest feels-like

-9.7 °C

1 July 2025

Snowiest day

0.9 cm

1 August 2011

Sunniest day

13.9 h

13 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	40.9 °C8 February 2025	-5.4 °C1 July 2025	19.4 °C	758 mm	105	3
2024	39.9 °C3 February 2024	-4.7 °C9 August 2024	18.9 °C	855 mm	94	10
2023	39.2 °C10 January 2023	-1.4 °C13 June 2023	19.9 °C	645 mm	115	3
2022	41.5 °C15 January 2022	-1.3 °C23 June 2022	18.9 °C	471 mm	99	1
2021	39.0 °C29 December 2021	-4.1 °C29 June 2021	18.9 °C	646 mm	91	4
2020	38.3 °C18 October 2020	-2.6 °C20 August 2020	18.8 °C	544 mm	96	8
2019	38.4 °C11 October 2019	-1.5 °C6 July 2019	18.5 °C	959 mm	72	2
2018	37.9 °C11 December 2018	-2.7 °C14 June 2018	18.9 °C	826 mm	100	7
2017	41.2 °C16 December 2017	-4.0 °C17 July 2017	19.0 °C	755 mm	80	4
2016	37.0 °C12 December 2016	-0.5 °C7 September 2016	17.9 °C	909 mm	68	1
2015	36.4 °C6 January 2015	-0.4 °C21 July 2015	18.8 °C	1,012 mm	71	1
2014	39.0 °C23 January 2014	-0.7 °C13 August 2014	18.6 °C	1,061 mm	64	2
2013	40.0 °C30 December 2013	-4.0 °C23 July 2013	18.7 °C	576 mm	94	3
2012	39.6 °C9 January 2012	-3.9 °C7 June 2012	18.9 °C	1,097 mm	83	5
2011	40.4 °C21 December 2011	-3.2 °C26 June 2011	18.3 °C	763 mm	73	6
2010	37.8 °C7 November 2010	-4.3 °C17 July 2010	18.2 °C	811 mm	81	9
2009	40.6 °C30 October 2009	-1.7 °C24 July 2009	19.1 °C	728 mm	96	6
2008	37.4 °C20 December 2008	-3.0 °C30 May 2008	18.7 °C	690 mm	77	1
2007	37.0 °C21 December 2007	-3.3 °C10 July 2007	17.5 °C	940 mm	67	7
2006	39.3 °C9 January 2006	-0.1 °C31 July 2006	18.7 °C	931 mm	75	1
2005	37.0 °C6 March 2005	0.0 °C8 August 2005	18.1 °C	867 mm	70	0
2004	39.1 °C4 September 2004	-1.0 °C11 July 2004	18.5 °C	783 mm	84	3
2003	37.3 °C22 November 2003	-1.1 °C24 July 2003	18.2 °C	946 mm	71	3
2002	36.5 °C8 March 2002	-0.5 °C10 June 2002	18.1 °C	1,173 mm	66	2
2001	37.9 °C6 January 2001	-3.8 °C27 July 2001	18.2 °C	1,312 mm	70	5
2000	35.7 °C26 December 2000	-4.4 °C13 July 2000	17.7 °C	1,169 mm	54	3
1999	38.1 °C26 December 1999	-3.1 °C15 August 1999	17.8 °C	1,069 mm	63	5
1998	37.2 °C22 October 1998	1.4 °C20 September 1998	17.8 °C	867 mm	46	0
1997	35.3 °C29 August 1997	-0.2 °C3 July 1997	18.9 °C	1,137 mm	72	1
1996	37.7 °C28 November 1996	-1.9 °C28 June 1996	18.3 °C	1,002 mm	73	5
1995	38.8 °C16 December 1995	-1.9 °C25 June 1995	18.1 °C	760 mm	68	5
1994	37.4 °C10 December 1994	-3.0 °C9 July 1994	18.3 °C	973 mm	63	3
1993	34.7 °C13 January 1993	-3.6 °C14 July 1993	17.3 °C	1,312 mm	61	7
1992	34.9 °C7 February 1992	-4.2 °C6 July 1992	17.5 °C	1,232 mm	54	10
1991	36.6 °C22 October 1991	-3.0 °C2 August 1991	17.8 °C	1,257 mm	49	5
1990	38.5 °C27 January 1990	-1.7 °C22 July 1990	18.0 °C	1,241 mm	46	5
1989	39.5 °C12 February 1989	-2.4 °C5 July 1989	18.7 °C	756 mm	90	5
1988	37.8 °C3 December 1988	-4.2 °C11 July 1988	17.8 °C	854 mm	84	8
1987	39.1 °C1 December 1987	-2.1 °C23 June 1987	17.9 °C	893 mm	72	4
1986	38.8 °C25 January 1986	1.3 °C17 September 1986	18.7 °C	917 mm	64	0
1985	37.0 °C7 December 1985	-1.6 °C8 June 1985	18.4 °C	1,119 mm	66	2
1984	36.5 °C28 January 1984	-1.9 °C27 June 1984	17.5 °C	1,333 mm	50	3
1983	39.3 °C27 December 1983	-0.9 °C1 August 1983	18.0 °C	861 mm	74	3
1982	36.9 °C30 December 1982	-1.1 °C29 June 1982	18.4 °C	867 mm	60	2
1981	36.4 °C30 October 1981	-2.8 °C18 June 1981	18.0 °C	1,175 mm	46	5
1980	39.6 °C22 January 1980	-5.3 °C2 July 1980	18.7 °C	815 mm	90	9
1979	36.6 °C11 January 1979	-3.8 °C14 June 1979	17.8 °C	1,038 mm	55	3
1978	35.7 °C26 February 1978	-1.9 °C14 August 1978	17.9 °C	1,393 mm	55	3
1977	37.0 °C4 December 1977	-0.3 °C16 July 1977	18.4 °C	1,042 mm	68	2
1976	37.5 °C24 January 1976	-5.1 °C9 July 1976	17.3 °C	1,009 mm	43	7
1975	40.2 °C18 December 1975	-4.5 °C17 July 1975	18.1 °C	872 mm	68	4
1974	38.6 °C19 January 1974	0.1 °C18 August 1974	18.1 °C	898 mm	67	0
1973	35.2 °C12 January 1973	-2.3 °C18 July 1973	17.6 °C	1,116 mm	53	1
1972	40.6 °C6 February 1972	-2.1 °C4 August 1972	18.5 °C	869 mm	73	3
1971	41.9 °C29 December 1971	-2.6 °C16 June 1971	18.2 °C	940 mm	83	5
1970	39.0 °C26 December 1970	-1.4 °C1 July 1970	18.7 °C	991 mm	78	5
1969	41.3 °C30 January 1969	-1.8 °C18 June 1969	19.1 °C	1,070 mm	93	4
1968	40.6 °C11 December 1968	-0.3 °C16 May 1968	18.6 °C	1,160 mm	70	1
1967	40.2 °C27 December 1967	-4.8 °C13 June 1967	18.6 °C	1,165 mm	82	2
1966	36.8 °C25 October 1966	-0.6 °C5 August 1966	18.4 °C	869 mm	68	3
1965	37.1 °C11 January 1965	-2.8 °C11 July 1965	18.8 °C	790 mm	90	3
1964	38.5 °C25 January 1964	-1.8 °C30 June 1964	17.9 °C	842 mm	69	4
1963	42.1 °C4 January 1963	-1.6 °C5 August 1963	18.4 °C	1,025 mm	61	2
1962	37.6 °C29 December 1962	-3.3 °C16 July 1962	18.2 °C	760 mm	91	3
1961	38.4 °C20 January 1961	-2.9 °C13 June 1961	18.6 °C	903 mm	66	5
1960	37.7 °C8 December 1960	-3.4 °C8 July 1960	18.6 °C	906 mm	87	4
1959	36.0 °C4 February 1959	-1.0 °C23 June 1959	17.7 °C	1,053 mm	47	1
1958	36.1 °C7 January 1958	0.4 °C10 August 1958	18.4 °C	971 mm	57	0
1957	38.0 °C4 January 1957	-2.0 °C15 July 1957	18.0 °C	1,395 mm	67	7
1956	35.0 °C4 January 1956	3.0 °C17 May 1956	18.2 °C	980 mm	47	0
1955	38.4 °C5 January 1955	-3.0 °C30 July 1955	18.1 °C	1,223 mm	51	3
1954	35.9 °C7 December 1954	0.6 °C5 August 1954	18.1 °C	931 mm	57	0
1953	35.2 °C3 January 1953	2.3 °C23 July 1953	18.8 °C	1,231 mm	35	0
1952	36.6 °C27 December 1952	0.9 °C18 June 1952	18.5 °C	1,023 mm	68	0
1951	35.6 °C24 January 1951	0.1 °C27 June 1951	18.9 °C	1,373 mm	39	0
1950	38.7 °C29 January 1950	0.0 °C2 August 1950	19.3 °C	652 mm	102	0
1949	36.2 °C25 February 1949	1.2 °C15 August 1949	18.4 °C	925 mm	59	0
1948	33.7 °C12 December 1948	0.8 °C3 August 1948	18.3 °C	1,253 mm	43	0
1947	35.2 °C31 January 1947	0.5 °C10 July 1947	18.6 °C	1,059 mm	53	0
1946	38.3 °C30 January 1946	0.4 °C16 July 1946	18.8 °C	1,066 mm	65	0
1945	37.8 °C23 December 1945	-4.5 °C9 July 1945	19.1 °C	629 mm	98	4
1944	34.1 °C12 February 1944	-2.7 °C26 June 1944	18.6 °C	1,091 mm	46	2
1943	39.5 °C16 January 1943	1.3 °C31 August 1943	19.5 °C	1,286 mm	84	0
1942	35.5 °C12 January 1942	-1.6 °C16 June 1942	17.9 °C	1,011 mm	59	3
1941	37.5 °C9 December 1941	-1.5 °C25 June 1941	18.4 °C	759 mm	47	1
1940	33.3 °C20 December 1940	-0.5 °C1 July 1940	17.5 °C	1,374 mm	27	1

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

25.5 °C

+1.5 °C

Hot days (≥ 30 °C)

105 d/yr

+35

Frost days (< 0 °C)

3 d/yr

Annual rainfall

758 mm

-214 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	33.5 °C	+2.8 °C	58 mm	-79 mm
Feb	33.4 °C	+4.0 °C	114 mm	-15 mm
Mar	27.3 °C	0.0 °C	198 mm	+68 mm
Apr	22.9 °C	-0.6 °C	21 mm	-60 mm
May	22.4 °C	+2.3 °C	34 mm	-5 mm
Jun	17.0 °C	+0.1 °C	8 mm	-15 mm
Jul	17.8 °C	+1.0 °C	35 mm	+13 mm
Aug	20.4 °C	+1.2 °C	91 mm	+64 mm
Sep	23.5 °C	+1.7 °C	41 mm	-15 mm
Oct	27.0 °C	+2.3 °C	19 mm	-74 mm
Nov	28.7 °C	+1.0 °C	102 mm	-14 mm
Dec	32.2 °C	+2.2 °C	38 mm	-83 mm

The year's extremes

Hottest day

40.9 °C

8 Feb 2025

Coldest day

-5.4 °C

1 Jul 2025

Wettest day

51.2 mm

8 Mar 2025

Windiest day

41.1 km/h

27 Sep 2025

Strongest gust

74.2 km/h

27 Sep 2025

Hottest feels-like

45.2 °C

9 Feb 2025

Coldest feels-like

-9.7 °C

1 Jul 2025

Sunniest day

13.9 h

13 Dec 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 Arroyito?

Arroyito has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 972 mm of precipitation per year.

What is the hottest day ever recorded in Arroyito?

The hottest day measured in Arroyito between 1940 and 2025 was 4 January 1963, reaching 42.1 °C.

What is the coldest day in Arroyito?

The coldest day measured in Arroyito between 1940 and 2025 was 1 July 2025, at -5.4 °C.

Does it snow in Arroyito?

Almost never: Arroyito sees virtually no snow, with about 3 frost days per year.

Has the climate of Arroyito warmed?

Between 1940 and 2025, no statistically significant temperature trend emerges in Arroyito.

What is the wettest day in Arroyito?

The wettest day measured in Arroyito between 1940 and 2025 was 9 November 1955, with 134 mm of rain in 24 hours.

What was the windiest day in Arroyito?

The windiest day measured in Arroyito between 1940 and 2025 was 30 October 2022, with winds reaching 45.3 km/h.

What is the warmest month in Arroyito?

The warmest month in Arroyito is January (25.2 °C on average); the coldest is July (11.2 °C).

How much does it rain in Arroyito?

Arroyito receives on average 972 mm of precipitation per year, spread over about 93 rainy days.

Is it sunny in Arroyito?

Arroyito gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

What is the biggest single-day snowfall in Arroyito?

The heaviest 24-hour snowfall measured in Arroyito between 1940 and 2025 was 1 August 2011, with 0.9 cm.

Are there tropical nights in Arroyito?

Yes: Arroyito has on average 55 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Arroyito?

In Arroyito, between 1940 and 2025, the highest apparent temperature reached 47.0 °C on 3 February 2024, and the lowest was -9.7 °C on 1 July 2025.

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