Aimogasta climate — normals and trends

Q: What is the climate of Aimogasta?

Aimogasta has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 18.8 °C and it receives 526 mm of precipitation per year.

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

The hottest day measured in Aimogasta between 1940 and 2025 was 7 November 2023, reaching 40.6 °C.

Q: What is the coldest day in Aimogasta?

The coldest day measured in Aimogasta between 1940 and 2025 was 19 July 2010, at -4.5 °C.

Q: Does it snow in Aimogasta?

Almost never: Aimogasta sees virtually no snow, with about 2 frost days per year.

Q: Has the climate of Aimogasta warmed?

Yes: Aimogasta warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Aimogasta?

The wettest day measured in Aimogasta between 1940 and 2025 was 28 January 1981, with 74 mm of rain in 24 hours.

Q: What was the windiest day in Aimogasta?

The windiest day measured in Aimogasta between 1940 and 2025 was 18 January 1952, with winds reaching 39.2 km/h.

Q: What is the warmest month in Aimogasta?

The warmest month in Aimogasta is January (24.3 °C on average); the coldest is July (12.0 °C).

Q: How much does it rain in Aimogasta?

Aimogasta receives on average 526 mm of precipitation per year, spread over about 88 rainy days.

Q: Is it sunny in Aimogasta?

Aimogasta gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Aimogasta (Argentina) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 18.8 °C and it receives 526 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 (24.3 °C on average) and the coldest is July (12.0 °C). Rainfall peaks in January.

Aimogasta averages 2 frost days, 64 hot days (≥ 30 °C) and 88 rainy days per year.

Aimogasta has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The number of frost days there went from about 1 to 3 per year over the period.

The hottest day of the period reached 40.6 °C (on 7 November 2023) and the coldest -4.5 °C (on 19 July 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

AimogastaLa Rioja

coords: -28.56°, -66.81°
period: 1940–2025 · 86 yrs

BShHot semi-aridWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

18.8°C

Average daily high

24.4°C

Average daily low

13.9°C

Annual rainfall

526mm

Sunshine / day

11.0h

Mean relative humidity

57%

Average peak wind

12.3km/h

Seasonal range

12.3°C

Frost days (< 0 °C)

2 d/yr

Hot days (≥ 30 °C)

64 d/yr

Rainy days (≥ 1 mm)

88 d/yr

Annual snowfall

0.4 cm

Average feels-like high

24.5 °C

Average feels-like low

13.1 °C

Average peak gust

34.4 km/h

Tropical nights (≥ 20 °C)

55 d/yr

Solar radiation

19.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.58 · 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

40.6 °C

7 November 2023

Coldest day

-4.5 °C

19 July 2010

Wettest day

74 mm

28 January 1981

Windiest day

39.2 km/h

18 January 1952

Strongest gust

94.0 km/h

18 January 1952

Hottest feels-like

43.6 °C

16 December 2023

Coldest feels-like

-8.1 °C

19 July 2010

Snowiest day

2.5 cm

10 July 2000

Sunniest day

13.6 h

29 November 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	39.5 °C10 February 2025	-3.1 °C1 July 2025	20.0 °C	228 mm	113	5
2024	39.4 °C12 March 2024	-3.3 °C12 July 2024	20.3 °C	275 mm	139	8
2023	40.6 °C7 November 2023	-0.1 °C17 June 2023	20.8 °C	218 mm	128	1
2022	38.8 °C9 December 2022	-0.2 °C12 July 2022	18.7 °C	253 mm	83	2
2021	35.9 °C13 November 2021	-1.3 °C28 June 2021	19.1 °C	266 mm	73	5
2020	37.5 °C20 January 2020	-0.4 °C1 July 2020	19.6 °C	232 mm	93	3
2019	39.5 °C25 January 2019	0.8 °C26 June 2019	19.2 °C	290 mm	85	0
2018	36.9 °C29 September 2018	-1.3 °C15 June 2018	19.2 °C	285 mm	76	2
2017	39.0 °C3 January 2017	-2.5 °C17 July 2017	19.5 °C	339 mm	87	3
2016	38.4 °C22 January 2016	1.0 °C6 September 2016	19.0 °C	327 mm	86	0
2015	37.5 °C10 January 2015	2.1 °C16 July 2015	19.4 °C	390 mm	70	0
2014	37.0 °C21 January 2014	-0.5 °C25 July 2014	19.4 °C	365 mm	81	2
2013	37.5 °C1 February 2013	-3.3 °C22 July 2013	19.5 °C	211 mm	85	4
2012	39.3 °C10 December 2012	-1.9 °C11 July 2012	20.0 °C	181 mm	102	2
2011	37.4 °C21 December 2011	-4.1 °C3 July 2011	19.0 °C	393 mm	64	6
2010	39.4 °C3 February 2010	-4.5 °C19 July 2010	18.8 °C	313 mm	92	9
2009	37.9 °C30 October 2009	-3.3 °C24 July 2009	19.6 °C	285 mm	89	2
2008	35.9 °C10 January 2008	0.1 °C30 May 2008	18.9 °C	419 mm	61	0
2007	38.3 °C1 January 2007	-3.1 °C11 July 2007	18.9 °C	326 mm	95	6
2006	37.7 °C9 January 2006	-0.4 °C31 July 2006	20.1 °C	310 mm	89	1
2005	37.0 °C4 January 2005	-0.8 °C17 July 2005	19.0 °C	323 mm	88	3
2004	36.4 °C2 November 2004	-0.8 °C12 June 2004	19.1 °C	432 mm	85	1
2003	39.1 °C31 January 2003	-1.1 °C28 July 2003	19.6 °C	311 mm	89	2
2002	38.3 °C6 October 2002	0.4 °C13 June 2002	19.2 °C	448 mm	89	0
2001	38.3 °C9 February 2001	-1.7 °C19 June 2001	18.9 °C	460 mm	74	3
2000	35.4 °C26 December 2000	-2.1 °C13 July 2000	18.2 °C	573 mm	49	4
1999	35.1 °C6 March 1999	-2.6 °C17 July 1999	18.2 °C	590 mm	54	1
1998	38.2 °C20 January 1998	2.4 °C26 August 1998	18.4 °C	593 mm	53	0
1997	39.8 °C26 December 1997	2.5 °C24 May 1997	19.9 °C	321 mm	106	0
1996	37.0 °C6 November 1996	-2.0 °C29 June 1996	18.7 °C	484 mm	70	2
1995	38.3 °C20 December 1995	-0.6 °C20 July 1995	19.1 °C	483 mm	74	1
1994	38.8 °C11 December 1994	-3.4 °C25 June 1994	19.7 °C	469 mm	105	3
1993	39.8 °C3 December 1993	-1.8 °C14 July 1993	18.9 °C	415 mm	102	6
1992	35.5 °C27 October 1992	-2.1 °C19 July 1992	18.5 °C	497 mm	83	4
1991	37.8 °C26 February 1991	0.0 °C3 August 1991	19.1 °C	480 mm	81	0
1990	37.8 °C26 December 1990	-0.9 °C22 July 1990	18.9 °C	531 mm	76	1
1989	38.3 °C10 December 1989	-3.0 °C6 July 1989	19.2 °C	419 mm	90	4
1988	40.0 °C11 November 1988	-1.4 °C4 June 1988	18.6 °C	415 mm	82	2
1987	38.9 °C10 October 1987	-0.7 °C15 June 1987	18.9 °C	480 mm	92	4
1986	39.3 °C26 November 1986	1.2 °C7 June 1986	19.3 °C	582 mm	85	0
1985	37.7 °C9 November 1985	1.0 °C11 August 1985	18.9 °C	582 mm	71	0
1984	36.5 °C4 January 1984	-1.3 °C7 June 1984	18.5 °C	548 mm	73	1
1983	37.4 °C24 February 1983	-0.8 °C10 July 1983	18.5 °C	603 mm	89	4
1982	38.3 °C2 February 1982	0.2 °C29 June 1982	19.4 °C	434 mm	78	0
1981	37.1 °C30 December 1981	-0.1 °C25 July 1981	19.1 °C	547 mm	81	1
1980	37.4 °C30 December 1980	-0.9 °C5 July 1980	19.0 °C	440 mm	83	3
1979	34.4 °C12 November 1979	-0.4 °C15 June 1979	18.2 °C	761 mm	48	1
1978	36.6 °C28 December 1978	-3.3 °C28 July 1978	18.9 °C	631 mm	68	2
1977	37.2 °C4 December 1977	0.7 °C24 June 1977	19.5 °C	547 mm	89	0
1976	38.6 °C12 December 1976	-1.0 °C11 July 1976	18.2 °C	601 mm	66	4
1975	39.6 °C18 December 1975	-2.1 °C17 July 1975	18.7 °C	547 mm	83	2
1974	35.4 °C13 January 1974	-0.6 °C25 July 1974	18.3 °C	677 mm	50	1
1973	38.5 °C11 January 1973	-1.0 °C22 July 1973	18.2 °C	738 mm	55	1
1972	38.1 °C1 January 1972	-1.8 °C8 July 1972	18.8 °C	520 mm	72	3
1971	38.9 °C17 December 1971	-0.3 °C23 June 1971	18.2 °C	609 mm	62	1
1970	35.5 °C21 January 1970	-0.5 °C5 July 1970	18.7 °C	628 mm	75	3
1969	35.4 °C31 January 1969	-3.6 °C10 July 1969	19.2 °C	589 mm	81	1
1968	38.4 °C11 December 1968	2.3 °C16 May 1968	18.6 °C	643 mm	62	0
1967	36.7 °C30 January 1967	-0.4 °C14 June 1967	18.5 °C	664 mm	52	1
1966	36.3 °C8 December 1966	0.3 °C4 August 1966	18.0 °C	569 mm	40	0
1965	35.0 °C22 November 1965	-0.8 °C11 July 1965	18.4 °C	558 mm	45	1
1964	34.6 °C7 December 1964	0.7 °C30 June 1964	17.8 °C	665 mm	39	0
1963	36.2 °C4 January 1963	-0.4 °C5 August 1963	18.1 °C	736 mm	33	1
1962	35.0 °C27 November 1962	-2.7 °C16 July 1962	17.8 °C	703 mm	36	4
1961	37.2 °C20 January 1961	-2.0 °C14 June 1961	18.8 °C	678 mm	60	5
1960	34.9 °C18 January 1960	-2.0 °C8 July 1960	18.3 °C	550 mm	57	2
1959	34.5 °C23 October 1959	2.9 °C21 May 1959	18.1 °C	722 mm	40	0
1958	33.6 °C27 December 1958	0.5 °C9 August 1958	17.8 °C	803 mm	32	0
1957	34.8 °C6 October 1957	-0.9 °C19 July 1957	18.0 °C	647 mm	41	2
1956	33.4 °C6 January 1956	4.7 °C1 September 1956	17.3 °C	811 mm	14	0
1955	36.0 °C24 December 1955	-0.6 °C30 July 1955	17.4 °C	782 mm	25	2
1954	34.9 °C8 December 1954	3.6 °C4 July 1954	17.4 °C	706 mm	19	0
1953	34.1 °C20 January 1953	3.3 °C24 July 1953	18.4 °C	827 mm	23	0
1952	32.7 °C29 December 1952	2.1 °C20 June 1952	18.2 °C	709 mm	28	0
1951	36.2 °C15 December 1951	3.7 °C5 July 1951	18.4 °C	781 mm	14	0
1950	32.5 °C1 September 1950	2.8 °C3 August 1950	18.3 °C	615 mm	16	0
1949	32.4 °C25 February 1949	1.8 °C11 August 1949	17.7 °C	634 mm	14	0
1948	31.5 °C12 December 1948	3.9 °C9 August 1948	17.6 °C	685 mm	6	0
1947	33.1 °C1 February 1947	1.4 °C14 July 1947	17.3 °C	882 mm	7	0
1946	32.7 °C1 January 1946	2.7 °C17 July 1946	17.5 °C	793 mm	17	0
1945	36.2 °C25 December 1945	1.0 °C9 July 1945	18.3 °C	517 mm	25	0
1944	32.7 °C8 January 1944	1.1 °C7 July 1944	18.1 °C	862 mm	9	0
1943	35.9 °C4 January 1943	2.4 °C15 August 1943	18.7 °C	655 mm	38	0
1942	35.1 °C1 January 1942	-2.4 °C12 July 1942	18.0 °C	500 mm	48	6
1941	37.8 °C4 November 1941	0.7 °C17 August 1941	18.6 °C	440 mm	40	0
1940	32.9 °C9 October 1940	2.9 °C1 July 1940	17.4 °C	878 mm	6	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

26.2 °C

+1.8 °C

Hot days (≥ 30 °C)

113 d/yr

+49

Frost days (< 0 °C)

5 d/yr

Annual rainfall

228 mm

-298 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.0 °C	+2.6 °C	31 mm	-60 mm
Feb	34.6 °C	+6.2 °C	23 mm	-50 mm
Mar	27.9 °C	+1.3 °C	29 mm	-40 mm
Apr	24.0 °C	+0.3 °C	9 mm	-30 mm
May	23.1 °C	+2.2 °C	2 mm	-19 mm
Jun	18.3 °C	-0.4 °C	2 mm	-8 mm
Jul	19.9 °C	+1.2 °C	3 mm	-7 mm
Aug	21.1 °C	+0.1 °C	23 mm	+11 mm
Sep	26.0 °C	+2.9 °C	1 mm	-20 mm
Oct	27.3 °C	+1.7 °C	19 mm	-22 mm
Nov	30.2 °C	+2.6 °C	3 mm	-63 mm
Dec	30.2 °C	+1.0 °C	84 mm	+10 mm

The year's extremes

Hottest day

39.5 °C

10 Feb 2025

Coldest day

-3.1 °C

1 Jul 2025

Wettest day

43.0 mm

7 Dec 2025

Windiest day

28.7 km/h

27 Oct 2025

Strongest gust

79.6 km/h

21 Nov 2025

Hottest feels-like

42.2 °C

23 Feb 2025

Coldest feels-like

-6.5 °C

1 Jul 2025

Snowiest day

0.3 cm

30 Jun 2025

Sunniest day

13.6 h

23 Nov 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 Aimogasta?

Aimogasta has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 18.8 °C and it receives 526 mm of precipitation per year.

What is the hottest day ever recorded in Aimogasta?

The hottest day measured in Aimogasta between 1940 and 2025 was 7 November 2023, reaching 40.6 °C.

What is the coldest day in Aimogasta?

The coldest day measured in Aimogasta between 1940 and 2025 was 19 July 2010, at -4.5 °C.

Does it snow in Aimogasta?

Almost never: Aimogasta sees virtually no snow, with about 2 frost days per year.

Has the climate of Aimogasta warmed?

Yes: Aimogasta warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Aimogasta?

The wettest day measured in Aimogasta between 1940 and 2025 was 28 January 1981, with 74 mm of rain in 24 hours.

What was the windiest day in Aimogasta?

The windiest day measured in Aimogasta between 1940 and 2025 was 18 January 1952, with winds reaching 39.2 km/h.

What is the warmest month in Aimogasta?

The warmest month in Aimogasta is January (24.3 °C on average); the coldest is July (12.0 °C).

How much does it rain in Aimogasta?

Aimogasta receives on average 526 mm of precipitation per year, spread over about 88 rainy days.

Is it sunny in Aimogasta?

Aimogasta gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

What is the biggest single-day snowfall in Aimogasta?

The heaviest 24-hour snowfall measured in Aimogasta between 1940 and 2025 was 10 July 2000, with 2.5 cm.

Are there tropical nights in Aimogasta?

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

What was the most extreme apparent temperature in Aimogasta?

In Aimogasta, between 1940 and 2025, the highest apparent temperature reached 43.6 °C on 16 December 2023, and the lowest was -8.1 °C on 19 July 2010.

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