Juan Jose Castelli climate — normals and trends

Q: What is the climate of Juan Jose Castelli?

Juan Jose Castelli has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.1 °C and it receives 1,155 mm of precipitation per year.

Q: What is the hottest day ever recorded in Juan Jose Castelli?

The hottest day measured in Juan Jose Castelli between 1940 and 2025 was 16 October 2014, reaching 47.7 °C.

Q: What is the coldest day in Juan Jose Castelli?

The coldest day measured in Juan Jose Castelli between 1940 and 2025 was 18 July 2017, at -3.1 °C.

Q: Does it snow in Juan Jose Castelli?

Almost never: Juan Jose Castelli sees virtually no snow, with about 1 frost days per year.

Q: Has the climate of Juan Jose Castelli warmed?

Yes: Juan Jose Castelli warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Juan Jose Castelli?

The wettest day measured in Juan Jose Castelli between 1940 and 2025 was 10 November 2004, with 156 mm of rain in 24 hours.

Q: What was the windiest day in Juan Jose Castelli?

The windiest day measured in Juan Jose Castelli between 1940 and 2025 was 3 February 2010, with winds reaching 40.0 km/h.

Q: What is the warmest month in Juan Jose Castelli?

The warmest month in Juan Jose Castelli is January (27.6 °C on average); the coldest is July (16.1 °C).

Q: How much does it rain in Juan Jose Castelli?

Juan Jose Castelli receives on average 1,155 mm of precipitation per year, spread over about 112 rainy days.

Q: Is it sunny in Juan Jose Castelli?

Juan Jose Castelli gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

Juan Jose Castelli (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.1 °C and it receives 1,155 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 (27.6 °C on average) and the coldest is July (16.1 °C). Rainfall peaks in March.

Juan Jose Castelli averages 1 frost days, 141 hot days (≥ 30 °C) and 112 rainy days per year.

Juan Jose Castelli has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.

The number of frost days there went from about 0 to 2 per year over the period.

The hottest day of the period reached 47.7 °C (on 16 October 2014) and the coldest -3.1 °C (on 18 July 2017).

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

Juan Jose CastelliChaco

coords: -25.95°, -60.62°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthMarchDriest monthJuly

Mean daily temperature

22.1°C

Average daily high

27.7°C

Average daily low

17.3°C

Annual rainfall

1,155mm

Sunshine / day

9.3h

Mean relative humidity

70%

Average peak wind

15.8km/h

Seasonal range

11.5°C

Frost days (< 0 °C)

1 d/yr

Hot days (≥ 30 °C)

141 d/yr

Rainy days (≥ 1 mm)

112 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.3 °C

Average feels-like low

17.6 °C

Average peak gust

34.1 km/h

Tropical nights (≥ 20 °C)

138 d/yr

Solar radiation

17.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.14 · 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

47.7 °C

16 October 2014

Coldest day

-3.1 °C

18 July 2017

Wettest day

156 mm

10 November 2004

Windiest day

40.0 km/h

3 February 2010

Strongest gust

85.3 km/h

28 August 2002

Hottest feels-like

47.4 °C

19 November 2009

Coldest feels-like

-7.3 °C

29 July 2021

Snowiest day

1.6 cm

11 August 1949

Sunniest day

13.6 h

27 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	40.4 °C18 January 2025	-0.9 °C3 July 2025	22.3 °C	919 mm	146	3
2024	41.6 °C3 February 2024	-1.5 °C14 July 2024	22.9 °C	997 mm	197	3
2023	45.4 °C16 October 2023	0.6 °C14 June 2023	23.4 °C	812 mm	181	0
2022	41.8 °C1 January 2022	0.4 °C17 July 2022	22.1 °C	665 mm	170	0
2021	41.6 °C19 September 2021	-3.1 °C29 July 2021	22.4 °C	694 mm	185	4
2020	42.6 °C25 November 2020	-1.3 °C21 August 2020	23.1 °C	575 mm	203	1
2019	41.2 °C28 October 2019	1.8 °C6 July 2019	22.4 °C	965 mm	147	0
2018	43.5 °C23 September 2018	0.6 °C10 August 2018	22.6 °C	958 mm	180	0
2017	42.9 °C18 October 2017	-3.1 °C18 July 2017	22.7 °C	1,193 mm	159	2
2016	40.8 °C12 September 2016	0.6 °C12 June 2016	21.5 °C	1,198 mm	140	0
2015	38.7 °C10 January 2015	4.3 °C20 June 2015	22.8 °C	1,352 mm	157	0
2014	47.7 °C16 October 2014	0.5 °C25 July 2014	23.0 °C	1,181 mm	153	0
2013	40.9 °C1 February 2013	-1.3 °C23 July 2013	22.7 °C	762 mm	166	2
2012	44.5 °C27 October 2012	-1.8 °C8 June 2012	23.1 °C	886 mm	177	2
2011	42.0 °C21 December 2011	-0.9 °C27 June 2011	21.9 °C	986 mm	145	3
2010	41.4 °C7 February 2010	0.1 °C14 July 2010	21.5 °C	1,195 mm	150	0
2009	44.3 °C2 November 2009	-0.6 °C24 July 2009	22.8 °C	898 mm	187	1
2008	40.7 °C21 December 2008	-0.3 °C30 May 2008	22.3 °C	914 mm	167	1
2007	42.1 °C10 January 2007	-1.8 °C11 July 2007	21.8 °C	1,096 mm	166	2
2006	40.4 °C27 September 2006	2.4 °C31 July 2006	22.8 °C	1,171 mm	170	0
2005	41.3 °C13 October 2005	0.6 °C19 July 2005	22.1 °C	957 mm	164	0
2004	41.3 °C3 November 2004	0.7 °C12 June 2004	22.1 °C	970 mm	166	0
2003	41.7 °C23 November 2003	1.7 °C11 July 2003	22.2 °C	1,407 mm	140	0
2002	40.6 °C28 December 2002	2.3 °C19 June 2002	22.2 °C	1,314 mm	153	0
2001	39.6 °C26 October 2001	0.4 °C28 July 2001	22.6 °C	951 mm	169	0
2000	40.5 °C20 September 2000	-2.2 °C13 July 2000	21.3 °C	1,582 mm	128	3
1999	42.3 °C12 October 1999	0.4 °C15 August 1999	21.8 °C	1,057 mm	165	0
1998	42.7 °C21 January 1998	3.2 °C11 July 1998	21.6 °C	1,276 mm	119	0
1997	43.1 °C12 October 1997	1.8 °C8 June 1997	23.2 °C	1,097 mm	183	0
1996	38.8 °C3 January 1996	-1.2 °C29 June 1996	21.5 °C	1,534 mm	131	1
1995	42.4 °C6 November 1995	-1.1 °C21 July 1995	22.0 °C	1,108 mm	157	1
1994	41.4 °C20 September 1994	-2.2 °C10 July 1994	22.3 °C	1,296 mm	153	2
1993	40.9 °C6 September 1993	-1.4 °C31 July 1993	21.6 °C	1,278 mm	150	3
1992	37.8 °C8 February 1992	0.1 °C19 July 1992	21.0 °C	1,508 mm	109	0
1991	40.4 °C4 February 1991	-0.8 °C2 August 1991	21.9 °C	1,596 mm	137	1
1990	41.8 °C14 March 1990	-0.1 °C24 July 1990	21.8 °C	1,237 mm	144	1
1989	39.7 °C1 March 1989	-1.6 °C6 July 1989	22.0 °C	1,228 mm	144	3
1988	43.0 °C11 November 1988	-1.3 °C24 July 1988	22.0 °C	834 mm	170	3
1987	41.5 °C11 October 1987	-0.7 °C16 June 1987	21.1 °C	1,675 mm	129	1
1986	41.8 °C29 January 1986	2.7 °C22 July 1986	22.4 °C	1,881 mm	139	0
1985	41.3 °C8 December 1985	-0.7 °C6 July 1985	22.3 °C	1,272 mm	143	1
1984	38.5 °C24 February 1984	0.7 °C27 June 1984	21.7 °C	1,291 mm	134	0
1983	40.0 °C10 March 1983	1.2 °C2 August 1983	21.7 °C	892 mm	151	0
1982	40.0 °C16 January 1982	3.5 °C29 June 1982	22.1 °C	1,228 mm	129	0
1981	38.4 °C29 October 1981	-1.0 °C18 June 1981	21.7 °C	1,267 mm	140	2
1980	39.9 °C18 January 1980	0.8 °C3 July 1980	22.4 °C	1,314 mm	161	0
1979	42.3 °C22 October 1979	0.7 °C20 July 1979	22.1 °C	1,002 mm	131	0
1978	41.1 °C24 October 1978	1.0 °C14 August 1978	22.7 °C	926 mm	170	0
1977	42.7 °C31 October 1977	0.6 °C25 June 1977	23.0 °C	852 mm	162	0
1976	41.3 °C14 January 1976	-0.1 °C10 July 1976	21.8 °C	898 mm	151	1
1975	40.7 °C26 October 1975	-1.5 °C18 July 1975	21.6 °C	1,274 mm	120	3
1974	43.3 °C25 November 1974	2.0 °C22 June 1974	22.0 °C	993 mm	149	0
1973	41.8 °C21 October 1973	2.5 °C27 June 1973	21.7 °C	1,283 mm	139	0
1972	43.4 °C3 January 1972	1.2 °C8 July 1972	22.1 °C	1,311 mm	148	0
1971	41.8 °C28 December 1971	0.8 °C12 June 1971	21.9 °C	1,224 mm	154	0
1970	45.1 °C8 December 1970	0.1 °C8 July 1970	22.8 °C	1,185 mm	173	0
1969	42.5 °C7 February 1969	0.6 °C9 July 1969	22.1 °C	1,607 mm	149	0
1968	43.2 °C12 December 1968	1.9 °C17 May 1968	22.4 °C	1,287 mm	149	0
1967	41.2 °C1 December 1967	2.0 °C14 June 1967	22.3 °C	1,359 mm	156	0
1966	42.0 °C6 November 1966	0.2 °C5 August 1966	21.8 °C	1,032 mm	124	0
1965	40.0 °C23 November 1965	-1.3 °C11 July 1965	21.9 °C	1,090 mm	138	2
1964	41.7 °C6 January 1964	-0.2 °C30 June 1964	21.9 °C	725 mm	160	2
1963	44.3 °C27 November 1963	0.8 °C17 June 1963	23.0 °C	960 mm	156	0
1962	42.2 °C28 November 1962	-1.6 °C17 July 1962	21.0 °C	824 mm	145	1
1961	39.1 °C17 January 1961	-1.4 °C15 June 1961	22.4 °C	1,143 mm	142	2
1960	38.4 °C9 December 1960	0.6 °C8 July 1960	21.5 °C	1,004 mm	151	0
1959	36.7 °C8 September 1959	3.6 °C12 June 1959	21.2 °C	1,739 mm	110	0
1958	41.0 °C11 February 1958	0.2 °C10 August 1958	22.0 °C	1,170 mm	130	0
1957	38.8 °C6 October 1957	-1.3 °C20 July 1957	21.8 °C	1,045 mm	136	2
1956	34.9 °C28 December 1956	3.7 °C20 September 1956	20.3 °C	1,665 mm	61	0
1955	36.7 °C10 February 1955	-0.9 °C31 July 1955	20.8 °C	1,363 mm	89	1
1954	35.8 °C1 December 1954	3.8 °C6 August 1954	21.0 °C	1,463 mm	87	0
1953	39.7 °C5 January 1953	5.4 °C30 July 1953	22.1 °C	1,305 mm	86	0
1952	37.7 °C23 December 1952	4.6 °C19 June 1952	21.6 °C	1,076 mm	104	0
1951	36.7 °C24 September 1951	5.7 °C28 June 1951	22.0 °C	1,502 mm	75	0
1950	36.9 °C9 November 1950	2.5 °C4 August 1950	21.4 °C	1,114 mm	89	0
1949	37.3 °C20 December 1949	1.7 °C11 August 1949	21.2 °C	1,190 mm	90	0
1948	37.1 °C22 September 1948	5.3 °C22 May 1948	21.7 °C	1,341 mm	83	0
1947	33.8 °C10 January 1947	3.1 °C11 July 1947	21.2 °C	1,430 mm	63	0
1946	38.3 °C2 January 1946	1.9 °C18 July 1946	21.2 °C	1,633 mm	86	0
1945	41.4 °C11 January 1945	2.0 °C24 June 1945	23.2 °C	879 mm	150	0
1944	38.7 °C30 December 1944	2.6 °C7 July 1944	23.2 °C	936 mm	137	0
1943	40.9 °C16 January 1943	5.3 °C6 July 1943	23.3 °C	768 mm	157	0
1942	41.3 °C25 November 1942	0.9 °C19 June 1942	22.2 °C	810 mm	148	0
1941	35.9 °C16 February 1941	3.4 °C25 June 1941	21.2 °C	1,274 mm	81	0
1940	34.1 °C25 December 1940	6.1 °C27 August 1940	21.0 °C	1,211 mm	77	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

28.3 °C

+0.6 °C

Hot days (≥ 30 °C)

146 d/yr

Frost days (< 0 °C)

3 d/yr

Annual rainfall

919 mm

-236 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	35.7 °C	+2.5 °C	32 mm	-101 mm
Feb	36.6 °C	+4.6 °C	73 mm	-63 mm
Mar	31.4 °C	+1.2 °C	108 mm	-32 mm
Apr	25.2 °C	-1.4 °C	54 mm	-66 mm
May	24.7 °C	+1.2 °C	104 mm	+37 mm
Jun	18.4 °C	-2.8 °C	69 mm	+22 mm
Jul	23.4 °C	+1.5 °C	4 mm	-28 mm
Aug	24.9 °C	+0.5 °C	46 mm	+4 mm
Sep	26.6 °C	0.0 °C	135 mm	+63 mm
Oct	28.5 °C	-0.5 °C	79 mm	-37 mm
Nov	31.7 °C	+0.9 °C	49 mm	-82 mm
Dec	32.7 °C	+0.2 °C	167 mm	+44 mm

The year's extremes

Hottest day

40.4 °C

18 Jan 2025

Coldest day

-0.9 °C

3 Jul 2025

Wettest day

57.1 mm

22 Dec 2025

Windiest day

34.8 km/h

22 Aug 2025

Strongest gust

71.6 km/h

1 Aug 2025

Hottest feels-like

46.5 °C

6 Feb 2025

Coldest feels-like

-4.4 °C

3 Jul 2025

Sunniest day

13.6 h

27 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 Juan Jose Castelli?

Juan Jose Castelli has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.1 °C and it receives 1,155 mm of precipitation per year.

What is the hottest day ever recorded in Juan Jose Castelli?

The hottest day measured in Juan Jose Castelli between 1940 and 2025 was 16 October 2014, reaching 47.7 °C.

What is the coldest day in Juan Jose Castelli?

The coldest day measured in Juan Jose Castelli between 1940 and 2025 was 18 July 2017, at -3.1 °C.

Does it snow in Juan Jose Castelli?

Almost never: Juan Jose Castelli sees virtually no snow, with about 1 frost days per year.

Has the climate of Juan Jose Castelli warmed?

Yes: Juan Jose Castelli warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Juan Jose Castelli?

The wettest day measured in Juan Jose Castelli between 1940 and 2025 was 10 November 2004, with 156 mm of rain in 24 hours.

What was the windiest day in Juan Jose Castelli?

The windiest day measured in Juan Jose Castelli between 1940 and 2025 was 3 February 2010, with winds reaching 40.0 km/h.

What is the warmest month in Juan Jose Castelli?

The warmest month in Juan Jose Castelli is January (27.6 °C on average); the coldest is July (16.1 °C).

How much does it rain in Juan Jose Castelli?

Juan Jose Castelli receives on average 1,155 mm of precipitation per year, spread over about 112 rainy days.

Is it sunny in Juan Jose Castelli?

Juan Jose Castelli gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

What is the biggest single-day snowfall in Juan Jose Castelli?

The heaviest 24-hour snowfall measured in Juan Jose Castelli between 1940 and 2025 was 11 August 1949, with 1.6 cm.

Are there tropical nights in Juan Jose Castelli?

Yes: Juan Jose Castelli has on average 138 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Juan Jose Castelli?

In Juan Jose Castelli, between 1940 and 2025, the highest apparent temperature reached 47.4 °C on 19 November 2009, and the lowest was -7.3 °C on 29 July 2021.

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