Monteros climate — normals and trends

Q: What is the climate of Monteros?

Monteros has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.2 °C and it receives 2,445 mm of precipitation per year.

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

The hottest day measured in Monteros between 1940 and 2025 was 12 December 1988, reaching 39.7 °C.

Q: What is the coldest day in Monteros?

The coldest day measured in Monteros between 1940 and 2025 was 24 July 2009, at -5.0 °C.

Q: Does it snow in Monteros?

Yes. Monteros gets on average 5.9 cm of snow per year and has around 2 frost days.

Q: Has the climate of Monteros warmed?

Yes: Monteros warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Monteros?

The wettest day measured in Monteros between 1940 and 2025 was 18 January 1979, with 215 mm of rain in 24 hours.

Q: What was the windiest day in Monteros?

The windiest day measured in Monteros between 1940 and 2025 was 12 January 2010, with winds reaching 32.6 km/h.

Q: What is the warmest month in Monteros?

The warmest month in Monteros is January (23.8 °C on average); the coldest is July (11.4 °C).

Q: How much does it rain in Monteros?

Monteros receives on average 2,445 mm of precipitation per year, spread over about 241 rainy days.

Q: Is it sunny in Monteros?

Monteros gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.

Monteros (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.2 °C and it receives 2,445 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 (23.8 °C on average) and the coldest is July (11.4 °C). Rainfall peaks in January.

Monteros averages 2 frost days, 44 hot days (≥ 30 °C) and 241 rainy days per year.

Monteros has warmed by +1.1 °C between 1940 and 2025, or +0.13 °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 39.7 °C (on 12 December 1988) and the coldest -5.0 °C (on 24 July 2009).

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

MonterosTucuman

coords: -27.17°, -65.50°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

18.2°C

Average daily high

23.3°C

Average daily low

13.8°C

Annual rainfall

2,445mm

Sunshine / day

10.4h

Mean relative humidity

74%

Average peak wind

8.1km/h

Seasonal range

12.4°C

Frost days (< 0 °C)

2 d/yr

Hot days (≥ 30 °C)

44 d/yr

Rainy days (≥ 1 mm)

241 d/yr

Annual snowfall

5.9 cm

Average feels-like high

25.3 °C

Average feels-like low

13.9 °C

Average peak gust

23.5 km/h

Tropical nights (≥ 20 °C)

48 d/yr

Solar radiation

17.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °C per decade · r² = 0.39 · 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

39.7 °C

12 December 1988

Coldest day

-5.0 °C

24 July 2009

Wettest day

215 mm

18 January 1979

Windiest day

32.6 km/h

12 January 2010

Strongest gust

68.0 km/h

12 January 2010

Hottest feels-like

45.7 °C

12 January 1973

Coldest feels-like

-8.3 °C

24 July 2009

Snowiest day

9.9 cm

13 September 1981

Sunniest day

13.6 h

5 December 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.2 °C24 February 2025	-1.6 °C3 July 2025	19.1 °C	1,508 mm	83	5
2024	37.4 °C3 February 2024	-2.9 °C14 July 2024	19.0 °C	1,780 mm	81	7
2023	38.5 °C17 December 2023	-1.3 °C15 June 2023	19.8 °C	1,576 mm	97	1
2022	37.4 °C8 December 2022	-1.0 °C17 July 2022	17.8 °C	1,263 mm	60	1
2021	35.6 °C30 December 2021	-1.0 °C29 July 2021	18.3 °C	1,567 mm	49	7
2020	35.5 °C10 December 2020	-1.8 °C9 July 2020	18.7 °C	1,642 mm	71	3
2019	36.5 °C27 October 2019	0.3 °C26 July 2019	18.3 °C	1,872 mm	60	0
2018	35.7 °C11 December 2018	0.0 °C26 July 2018	18.5 °C	1,799 mm	55	0
2017	37.1 °C16 December 2017	-3.1 °C18 July 2017	18.6 °C	1,970 mm	66	3
2016	35.4 °C25 December 2016	2.1 °C28 June 2016	18.0 °C	2,146 mm	51	0
2015	36.2 °C10 January 2015	1.9 °C24 June 2015	18.9 °C	2,005 mm	46	0
2014	36.6 °C7 January 2014	0.1 °C24 July 2014	18.8 °C	1,807 mm	63	0
2013	35.6 °C26 December 2013	-4.4 °C23 July 2013	18.7 °C	1,493 mm	73	3
2012	35.9 °C10 December 2012	-0.4 °C8 June 2012	19.1 °C	1,532 mm	77	1
2011	37.2 °C21 December 2011	-4.0 °C3 July 2011	18.1 °C	2,070 mm	38	6
2010	34.9 °C30 January 2010	-2.9 °C19 July 2010	18.0 °C	1,910 mm	50	10
2009	38.7 °C1 November 2009	-5.0 °C24 July 2009	18.9 °C	1,662 mm	64	4
2008	36.3 °C27 November 2008	0.7 °C1 June 2008	18.4 °C	2,162 mm	52	0
2007	35.6 °C27 February 2007	-4.7 °C11 July 2007	18.0 °C	2,048 mm	59	6
2006	35.8 °C2 December 2006	2.7 °C1 August 2006	19.1 °C	1,979 mm	66	0
2005	36.3 °C8 January 2005	-3.5 °C1 September 2005	18.2 °C	1,829 mm	64	2
2004	37.0 °C15 December 2004	-0.4 °C19 July 2004	18.6 °C	1,713 mm	69	1
2003	37.4 °C23 November 2003	-0.3 °C12 July 2003	18.8 °C	1,759 mm	72	1
2002	35.2 °C28 December 2002	0.4 °C16 June 2002	18.4 °C	2,395 mm	50	0
2001	35.6 °C26 October 2001	-1.4 °C20 June 2001	18.4 °C	2,424 mm	54	3
2000	35.4 °C27 December 2000	-2.4 °C13 July 2000	17.8 °C	2,591 mm	41	6
1999	35.2 °C21 December 1999	-0.7 °C16 August 1999	17.9 °C	2,217 mm	42	3
1998	35.4 °C21 January 1998	3.3 °C21 September 1998	18.3 °C	2,415 mm	46	0
1997	36.4 °C19 December 1997	2.1 °C3 July 1997	19.1 °C	2,332 mm	53	0
1996	35.5 °C29 November 1996	-2.3 °C29 June 1996	18.5 °C	2,147 mm	54	3
1995	38.1 °C20 December 1995	-1.3 °C20 July 1995	18.5 °C	1,892 mm	62	1
1994	36.6 °C2 December 1994	-2.7 °C10 July 1994	18.9 °C	2,301 mm	57	4
1993	35.1 °C16 October 1993	-2.6 °C30 July 1993	17.9 °C	2,339 mm	62	7
1992	33.9 °C24 October 1992	-2.9 °C19 July 1992	17.7 °C	2,702 mm	31	6
1991	36.4 °C19 December 1991	-0.8 °C2 August 1991	18.2 °C	2,918 mm	35	1
1990	35.6 °C21 December 1990	-1.0 °C22 July 1990	18.2 °C	2,694 mm	52	1
1989	36.5 °C2 February 1989	-3.3 °C6 July 1989	19.0 °C	1,709 mm	82	4
1988	39.7 °C12 December 1988	-2.0 °C14 July 1988	18.0 °C	2,193 mm	64	2
1987	37.0 °C18 November 1987	-2.9 °C15 June 1987	18.2 °C	2,080 mm	64	3
1986	36.0 °C25 January 1986	2.1 °C7 June 1986	18.7 °C	2,497 mm	58	0
1985	36.8 °C9 November 1985	0.5 °C11 July 1985	18.4 °C	2,962 mm	38	0
1984	33.9 °C16 October 1984	-3.8 °C25 August 1984	17.5 °C	2,744 mm	37	4
1983	35.8 °C29 December 1983	-1.6 °C4 June 1983	17.9 °C	2,405 mm	66	3
1982	35.6 °C2 February 1982	0.6 °C29 June 1982	18.4 °C	2,366 mm	42	0
1981	36.4 °C20 December 1981	-1.0 °C20 July 1981	18.4 °C	2,569 mm	49	4
1980	35.5 °C23 January 1980	-1.8 °C5 July 1980	18.5 °C	2,298 mm	64	4
1979	34.0 °C2 November 1979	1.3 °C15 June 1979	17.9 °C	3,387 mm	37	0
1978	35.1 °C1 December 1978	-2.5 °C14 August 1978	18.8 °C	2,270 mm	61	2
1977	36.7 °C4 December 1977	1.2 °C16 July 1977	18.6 °C	2,456 mm	57	0
1976	37.4 °C9 January 1976	-1.5 °C12 July 1976	17.7 °C	2,596 mm	54	4
1975	37.3 °C15 November 1975	-2.5 °C18 July 1975	18.1 °C	2,695 mm	57	5
1974	35.4 °C2 January 1974	-0.3 °C25 July 1974	17.8 °C	2,854 mm	42	1
1973	37.9 °C11 January 1973	-0.2 °C2 July 1973	18.1 °C	2,862 mm	49	1
1972	36.8 °C2 January 1972	-0.3 °C8 July 1972	18.3 °C	2,393 mm	57	2
1971	37.7 °C17 December 1971	-0.4 °C8 June 1971	17.8 °C	2,923 mm	53	2
1970	38.1 °C10 December 1970	-0.9 °C8 July 1970	18.2 °C	2,675 mm	52	6
1969	36.4 °C7 January 1969	-4.0 °C10 July 1969	18.6 °C	2,374 mm	72	5
1968	36.2 °C11 December 1968	0.4 °C16 May 1968	18.2 °C	2,991 mm	49	0
1967	36.0 °C17 January 1967	-2.7 °C16 June 1967	18.1 °C	2,920 mm	44	1
1966	36.0 °C9 December 1966	-0.4 °C5 August 1966	18.0 °C	2,531 mm	36	1
1965	34.9 °C29 November 1965	0.7 °C19 August 1965	18.1 °C	2,435 mm	37	0
1964	34.5 °C31 January 1964	0.5 °C2 August 1964	17.6 °C	2,495 mm	30	0
1963	37.1 °C4 January 1963	0.2 °C5 August 1963	18.2 °C	2,764 mm	37	0
1962	36.0 °C28 November 1962	-2.3 °C16 July 1962	17.8 °C	2,115 mm	44	1
1961	35.1 °C15 January 1961	-2.7 °C15 June 1961	18.3 °C	3,173 mm	29	3
1960	34.0 °C17 January 1960	-1.7 °C8 July 1960	18.2 °C	2,724 mm	40	1
1959	31.9 °C25 January 1959	2.0 °C10 June 1959	17.6 °C	3,386 mm	18	0
1958	32.0 °C7 January 1958	-0.5 °C9 August 1958	17.6 °C	3,591 mm	16	1
1957	33.8 °C30 November 1957	-0.7 °C19 July 1957	17.4 °C	3,151 mm	21	2
1956	30.2 °C4 January 1956	4.2 °C11 June 1956	17.1 °C	3,112 mm	1	0
1955	31.2 °C24 December 1955	-0.5 °C30 July 1955	17.3 °C	3,449 mm	3	1
1954	32.6 °C8 December 1954	2.9 °C5 August 1954	17.3 °C	2,914 mm	6	0
1953	30.7 °C5 January 1953	3.7 °C20 July 1953	18.3 °C	3,639 mm	5	0
1952	31.1 °C27 December 1952	1.8 °C20 June 1952	17.9 °C	2,759 mm	6	0
1951	29.6 °C19 January 1951	3.0 °C4 August 1951	18.2 °C	3,491 mm	0	0
1950	31.4 °C12 December 1950	2.2 °C4 August 1950	17.9 °C	2,735 mm	5	0
1949	29.9 °C13 December 1949	0.8 °C11 August 1949	17.4 °C	3,226 mm	0	0
1948	29.9 °C31 January 1948	2.5 °C28 July 1948	17.6 °C	3,004 mm	0	0
1947	30.7 °C10 January 1947	1.7 °C14 July 1947	17.3 °C	3,726 mm	1	0
1946	32.9 °C13 February 1946	2.6 °C16 July 1946	17.8 °C	3,174 mm	7	0
1945	34.5 °C25 December 1945	1.0 °C24 June 1945	18.3 °C	2,007 mm	25	0
1944	30.1 °C9 January 1944	-0.3 °C9 July 1944	17.9 °C	2,825 mm	2	1
1943	35.7 °C16 January 1943	2.5 °C31 August 1943	18.6 °C	2,422 mm	28	0
1942	32.9 °C19 January 1942	-1.1 °C19 June 1942	17.2 °C	1,819 mm	18	5
1941	33.8 °C29 November 1941	1.1 °C30 May 1941	17.4 °C	2,163 mm	13	0
1940	28.7 °C12 January 1940	1.9 °C15 June 1940	17.0 °C	3,777 mm	0	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

24.7 °C

+1.4 °C

Hot days (≥ 30 °C)

83 d/yr

+39

Frost days (< 0 °C)

5 d/yr

Annual rainfall

1508 mm

-937 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.5 °C	+2.1 °C	216 mm	-157 mm
Feb	32.5 °C	+5.2 °C	164 mm	-162 mm
Mar	26.3 °C	+0.7 °C	179 mm	-137 mm
Apr	22.6 °C	0.0 °C	80 mm	-117 mm
May	21.6 °C	+1.9 °C	90 mm	-31 mm
Jun	17.0 °C	-0.1 °C	38 mm	-35 mm
Jul	18.2 °C	+0.9 °C	40 mm	-24 mm
Aug	20.6 °C	+0.8 °C	60 mm	-14 mm
Sep	24.6 °C	+2.4 °C	61 mm	-55 mm
Oct	25.8 °C	+1.0 °C	128 mm	-79 mm
Nov	27.9 °C	+1.1 °C	100 mm	-165 mm
Dec	29.5 °C	+1.2 °C	352 mm	+39 mm

The year's extremes

Hottest day

37.2 °C

24 Feb 2025

Coldest day

-1.6 °C

3 Jul 2025

Wettest day

100.6 mm

25 Dec 2025

Windiest day

27.7 km/h

31 Mar 2025

Strongest gust

59.0 km/h

31 Mar 2025

Hottest feels-like

44.6 °C

24 Feb 2025

Coldest feels-like

-4.6 °C

3 Jul 2025

Snowiest day

1.3 cm

29 Jun 2025

Sunniest day

13.6 h

28 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 Monteros?

Monteros has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.2 °C and it receives 2,445 mm of precipitation per year.

What is the hottest day ever recorded in Monteros?

The hottest day measured in Monteros between 1940 and 2025 was 12 December 1988, reaching 39.7 °C.

What is the coldest day in Monteros?

The coldest day measured in Monteros between 1940 and 2025 was 24 July 2009, at -5.0 °C.

Does it snow in Monteros?

Yes. Monteros gets on average 5.9 cm of snow per year and has around 2 frost days.

Has the climate of Monteros warmed?

Yes: Monteros warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Monteros?

The wettest day measured in Monteros between 1940 and 2025 was 18 January 1979, with 215 mm of rain in 24 hours.

What was the windiest day in Monteros?

The windiest day measured in Monteros between 1940 and 2025 was 12 January 2010, with winds reaching 32.6 km/h.

What is the warmest month in Monteros?

The warmest month in Monteros is January (23.8 °C on average); the coldest is July (11.4 °C).

How much does it rain in Monteros?

Monteros receives on average 2,445 mm of precipitation per year, spread over about 241 rainy days.

Is it sunny in Monteros?

Monteros gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.

What is the biggest single-day snowfall in Monteros?

The heaviest 24-hour snowfall measured in Monteros between 1940 and 2025 was 13 September 1981, with 9.9 cm.

Are there tropical nights in Monteros?

Yes: Monteros has on average 48 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Monteros?

In Monteros, between 1940 and 2025, the highest apparent temperature reached 45.7 °C on 12 January 1973, and the lowest was -8.3 °C on 24 July 2009.

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