La Rioja climate — normals and trends

Q: What is the climate of La Rioja?

La Rioja has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.3 °C and it receives 713 mm of precipitation per year.

Q: What is the hottest day ever recorded in La Rioja?

The hottest day measured in La Rioja between 1940 and 2025 was 10 February 2025, reaching 43.6 °C.

Q: What is the coldest day in La Rioja?

The coldest day measured in La Rioja between 1940 and 2025 was 19 July 2010, at -5.2 °C.

Q: Does it snow in La Rioja?

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

Q: Has the climate of La Rioja warmed?

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

Q: What is the wettest day in La Rioja?

The wettest day measured in La Rioja between 1940 and 2025 was 21 January 1994, with 117 mm of rain in 24 hours.

Q: What was the windiest day in La Rioja?

The windiest day measured in La Rioja between 1940 and 2025 was 19 February 1997, with winds reaching 41.6 km/h.

Q: What is the warmest month in La Rioja?

The warmest month in La Rioja is January (26.1 °C on average); the coldest is July (10.9 °C).

Q: How much does it rain in La Rioja?

La Rioja receives on average 713 mm of precipitation per year, spread over about 99 rainy days.

Q: Is it sunny in La Rioja?

La Rioja gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.

La Rioja (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.3 °C and it receives 713 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 (26.1 °C on average) and the coldest is July (10.9 °C). Rainfall peaks in January.

La Rioja averages 2 frost days, 88 hot days (≥ 30 °C) and 99 rainy days per year.

La Rioja has warmed by +1.9 °C between 1940 and 2025, or +0.23 °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 43.6 °C (on 10 February 2025) and the coldest -5.2 °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

La RiojaLa Rioja

coords: -29.41°, -66.86°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

19.3°C

Average daily high

24.6°C

Average daily low

14.4°C

Annual rainfall

713mm

Sunshine / day

10.2h

Mean relative humidity

63%

Average peak wind

11.9km/h

Seasonal range

15.2°C

Frost days (< 0 °C)

2 d/yr

Hot days (≥ 30 °C)

88 d/yr

Rainy days (≥ 1 mm)

99 d/yr

Annual snowfall

0.3 cm

Average feels-like high

24.9 °C

Average feels-like low

13.6 °C

Average peak gust

29.2 km/h

Tropical nights (≥ 20 °C)

79 d/yr

Solar radiation

17.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.52 · 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

43.6 °C

10 February 2025

Coldest day

-5.2 °C

19 July 2010

Wettest day

117 mm

21 January 1994

Windiest day

41.6 km/h

19 February 1997

Strongest gust

98.6 km/h

4 November 1993

Hottest feels-like

46.4 °C

25 January 1986

Coldest feels-like

-9.2 °C

19 July 2010

Snowiest day

4.4 cm

16 July 2010

Sunniest day

13.6 h

1 December 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	43.6 °C10 February 2025	-3.1 °C1 July 2025	20.9 °C	378 mm	142	5
2024	41.4 °C3 February 2024	-3.7 °C11 July 2024	20.9 °C	362 mm	150	8
2023	42.1 °C7 November 2023	1.0 °C18 June 2023	21.4 °C	348 mm	148	0
2022	43.3 °C9 December 2022	-0.3 °C24 June 2022	19.8 °C	381 mm	118	1
2021	39.6 °C30 December 2021	-0.9 °C29 July 2021	19.9 °C	416 mm	110	5
2020	40.1 °C18 October 2020	-0.2 °C24 July 2020	20.2 °C	368 mm	122	1
2019	41.2 °C25 January 2019	0.6 °C18 June 2019	19.5 °C	519 mm	111	0
2018	39.5 °C26 December 2018	-1.3 °C25 July 2018	19.8 °C	451 mm	113	3
2017	42.1 °C16 December 2017	-1.9 °C17 July 2017	20.1 °C	471 mm	112	4
2016	40.3 °C30 December 2016	2.0 °C28 June 2016	19.1 °C	685 mm	102	0
2015	38.5 °C10 January 2015	1.3 °C24 June 2015	19.8 °C	687 mm	85	0
2014	43.1 °C22 January 2014	1.2 °C25 July 2014	19.9 °C	601 mm	93	0
2013	41.5 °C30 December 2013	-2.6 °C23 July 2013	20.6 °C	218 mm	133	3
2012	42.2 °C24 December 2012	-1.2 °C8 June 2012	20.8 °C	320 mm	127	3
2011	42.6 °C21 December 2011	-1.1 °C4 July 2011	19.8 °C	477 mm	100	2
2010	40.9 °C29 January 2010	-5.2 °C19 July 2010	19.3 °C	541 mm	102	8
2009	42.1 °C30 October 2009	-1.1 °C24 July 2009	20.6 °C	383 mm	136	2
2008	40.3 °C27 November 2008	0.4 °C30 May 2008	19.9 °C	521 mm	97	0
2007	40.9 °C1 January 2007	-2.5 °C12 July 2007	19.1 °C	514 mm	108	5
2006	41.3 °C7 January 2006	1.6 °C1 August 2006	20.5 °C	483 mm	113	0
2005	40.4 °C5 January 2005	2.0 °C17 July 2005	19.4 °C	501 mm	105	0
2004	39.9 °C4 September 2004	-0.2 °C12 June 2004	19.9 °C	523 mm	124	1
2003	41.6 °C22 November 2003	0.1 °C12 July 2003	20.2 °C	461 mm	119	0
2002	40.0 °C6 October 2002	0.6 °C23 June 2002	19.5 °C	718 mm	108	0
2001	39.0 °C23 November 2001	-2.4 °C19 June 2001	19.2 °C	842 mm	90	4
2000	39.2 °C26 December 2000	-2.7 °C14 July 2000	18.5 °C	921 mm	66	5
1999	38.5 °C17 December 1999	-0.5 °C17 July 1999	18.7 °C	798 mm	89	1
1998	41.1 °C27 December 1998	4.3 °C26 August 1998	18.9 °C	745 mm	69	0
1997	40.3 °C27 October 1997	1.9 °C24 May 1997	20.1 °C	614 mm	109	0
1996	39.1 °C3 January 1996	-1.9 °C29 June 1996	19.4 °C	690 mm	105	2
1995	42.8 °C20 December 1995	-0.2 °C20 July 1995	19.7 °C	504 mm	103	1
1994	42.9 °C11 December 1994	-2.2 °C9 July 1994	20.0 °C	768 mm	117	3
1993	41.6 °C3 December 1993	-1.7 °C14 July 1993	19.2 °C	526 mm	110	9
1992	39.2 °C15 October 1992	-1.2 °C18 July 1992	18.5 °C	856 mm	87	5
1991	39.4 °C22 November 1991	-0.7 °C2 August 1991	19.3 °C	735 mm	98	2
1990	40.0 °C26 January 1990	-0.6 °C21 June 1990	19.3 °C	811 mm	85	1
1989	40.4 °C3 January 1989	-3.2 °C6 July 1989	20.1 °C	552 mm	118	5
1988	41.4 °C11 November 1988	-1.2 °C8 July 1988	19.3 °C	446 mm	117	7
1987	40.4 °C2 March 1987	-0.1 °C15 June 1987	19.4 °C	618 mm	110	2
1986	42.2 °C25 January 1986	1.5 °C7 June 1986	19.8 °C	736 mm	100	0
1985	39.9 °C9 November 1985	-0.5 °C7 July 1985	19.2 °C	837 mm	82	2
1984	39.0 °C10 February 1984	0.3 °C7 June 1984	18.4 °C	866 mm	79	0
1983	39.4 °C25 December 1983	-1.2 °C3 June 1983	18.9 °C	820 mm	110	3
1982	41.2 °C2 February 1982	0.1 °C29 June 1982	19.8 °C	538 mm	103	0
1981	40.1 °C16 December 1981	-0.7 °C24 July 1981	19.3 °C	806 mm	88	2
1980	39.4 °C22 January 1980	-1.1 °C4 July 1980	19.4 °C	616 mm	101	3
1979	38.2 °C12 January 1979	-0.9 °C15 June 1979	18.4 °C	1,151 mm	54	1
1978	39.6 °C30 November 1978	-1.2 °C28 July 1978	19.6 °C	751 mm	82	2
1977	41.2 °C4 December 1977	1.6 °C16 July 1977	19.6 °C	842 mm	95	0
1976	41.4 °C12 December 1976	-0.8 °C9 July 1976	18.7 °C	708 mm	94	2
1975	41.1 °C15 November 1975	-2.5 °C18 July 1975	18.9 °C	1,011 mm	94	5
1974	39.0 °C23 November 1974	-0.9 °C25 July 1974	18.9 °C	841 mm	81	2
1973	41.1 °C10 January 1973	-1.2 °C22 July 1973	18.7 °C	893 mm	82	1
1972	41.4 °C6 February 1972	-0.7 °C4 July 1972	19.4 °C	645 mm	103	4
1971	42.9 °C28 December 1971	0.2 °C8 June 1971	18.9 °C	788 mm	92	0
1970	39.3 °C24 December 1970	-1.4 °C2 July 1970	19.4 °C	705 mm	102	2
1969	38.9 °C15 January 1969	-2.2 °C10 July 1969	19.7 °C	634 mm	104	4
1968	40.0 °C11 December 1968	1.2 °C16 May 1968	19.0 °C	1,051 mm	73	0
1967	39.9 °C30 December 1967	-1.0 °C16 June 1967	19.1 °C	810 mm	78	3
1966	39.6 °C8 December 1966	0.3 °C15 July 1966	18.7 °C	673 mm	64	0
1965	39.4 °C22 November 1965	-0.6 °C11 July 1965	18.9 °C	791 mm	84	1
1964	38.2 °C25 January 1964	-0.6 °C30 June 1964	18.2 °C	841 mm	52	1
1963	39.9 °C4 January 1963	-0.4 °C18 June 1963	18.5 °C	952 mm	56	1
1962	37.5 °C28 November 1962	-2.5 °C16 July 1962	19.0 °C	610 mm	95	5
1961	38.9 °C20 January 1961	-2.3 °C15 June 1961	19.1 °C	839 mm	74	5
1960	37.9 °C13 February 1960	-2.2 °C7 July 1960	19.1 °C	742 mm	85	4
1959	35.3 °C2 December 1959	2.1 °C19 May 1959	18.0 °C	997 mm	43	0
1958	36.8 °C2 November 1958	0.6 °C9 August 1958	18.2 °C	1,162 mm	50	0
1957	39.6 °C22 January 1957	-1.1 °C19 July 1957	18.5 °C	761 mm	72	3
1956	37.6 °C6 January 1956	3.4 °C4 August 1956	17.9 °C	957 mm	34	0
1955	39.7 °C24 December 1955	-1.3 °C30 July 1955	18.0 °C	994 mm	50	1
1954	39.3 °C7 December 1954	2.6 °C5 August 1954	18.1 °C	908 mm	58	0
1953	36.4 °C20 January 1953	3.4 °C23 July 1953	18.8 °C	1,025 mm	37	0
1952	37.1 °C22 December 1952	2.3 °C1 July 1952	18.6 °C	894 mm	61	0
1951	35.2 °C15 December 1951	3.7 °C4 August 1951	18.7 °C	1,026 mm	29	0
1950	37.2 °C12 December 1950	1.6 °C3 August 1950	19.3 °C	650 mm	71	0
1949	37.7 °C13 December 1949	1.5 °C11 August 1949	18.2 °C	840 mm	47	0
1948	35.9 °C12 December 1948	3.2 °C28 May 1948	18.2 °C	824 mm	31	0
1947	35.1 °C1 February 1947	1.0 °C14 July 1947	17.9 °C	1,104 mm	20	0
1946	37.6 °C1 January 1946	1.9 °C16 July 1946	18.3 °C	948 mm	37	0
1945	39.4 °C25 December 1945	-0.1 °C24 June 1945	19.7 °C	394 mm	96	1
1944	35.7 °C21 December 1944	-0.1 °C7 July 1944	18.5 °C	1,205 mm	35	1
1943	40.2 °C16 January 1943	1.5 °C15 August 1943	19.7 °C	735 mm	80	0
1942	36.8 °C11 January 1942	-0.7 °C20 June 1942	18.4 °C	821 mm	72	1
1941	39.9 °C9 December 1941	1.4 °C29 May 1941	19.0 °C	604 mm	74	0
1940	32.0 °C30 December 1940	3.4 °C30 June 1940	17.3 °C	1,246 mm	12	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

27.2 °C

+2.6 °C

Hot days (≥ 30 °C)

142 d/yr

+54

Frost days (< 0 °C)

5 d/yr

Annual rainfall

378 mm

-335 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	35.2 °C	+3.9 °C	51 mm	-69 mm
Feb	37.2 °C	+7.3 °C	33 mm	-66 mm
Mar	28.9 °C	+1.5 °C	52 mm	-41 mm
Apr	24.4 °C	+0.8 °C	19 mm	-34 mm
May	22.5 °C	+2.9 °C	8 mm	-25 mm
Jun	17.3 °C	+0.9 °C	6 mm	-12 mm
Jul	17.3 °C	+0.7 °C	8 mm	-7 mm
Aug	21.8 °C	+1.6 °C	17 mm	+0 mm
Sep	26.7 °C	+3.3 °C	4 mm	-29 mm
Oct	29.6 °C	+2.9 °C	21 mm	-42 mm
Nov	33.1 °C	+3.7 °C	21 mm	-55 mm
Dec	32.7 °C	+1.5 °C	139 mm	+44 mm

The year's extremes

Hottest day

43.6 °C

10 Feb 2025

Coldest day

-3.1 °C

1 Jul 2025

Wettest day

37.2 mm

7 Dec 2025

Windiest day

35.8 km/h

26 Sep 2025

Strongest gust

74.9 km/h

31 Mar 2025

Hottest feels-like

45.3 °C

8 Feb 2025

Coldest feels-like

-6.7 °C

1 Jul 2025

Snowiest day

0.2 cm

30 Jun 2025

Sunniest day

13.6 h

22 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 La Rioja?

La Rioja has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.3 °C and it receives 713 mm of precipitation per year.

What is the hottest day ever recorded in La Rioja?

The hottest day measured in La Rioja between 1940 and 2025 was 10 February 2025, reaching 43.6 °C.

What is the coldest day in La Rioja?

The coldest day measured in La Rioja between 1940 and 2025 was 19 July 2010, at -5.2 °C.

Does it snow in La Rioja?

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

Has the climate of La Rioja warmed?

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

What is the wettest day in La Rioja?

The wettest day measured in La Rioja between 1940 and 2025 was 21 January 1994, with 117 mm of rain in 24 hours.

What was the windiest day in La Rioja?

The windiest day measured in La Rioja between 1940 and 2025 was 19 February 1997, with winds reaching 41.6 km/h.

What is the warmest month in La Rioja?

The warmest month in La Rioja is January (26.1 °C on average); the coldest is July (10.9 °C).

How much does it rain in La Rioja?

La Rioja receives on average 713 mm of precipitation per year, spread over about 99 rainy days.

Is it sunny in La Rioja?

La Rioja gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.

What is the biggest single-day snowfall in La Rioja?

The heaviest 24-hour snowfall measured in La Rioja between 1940 and 2025 was 16 July 2010, with 4.4 cm.

Are there tropical nights in La Rioja?

Yes: La Rioja has on average 79 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in La Rioja?

In La Rioja, between 1940 and 2025, the highest apparent temperature reached 46.4 °C on 25 January 1986, and the lowest was -9.2 °C on 19 July 2010.

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