Gualeguaychu Weather Records (ARM00087497)

Record envelope, standing records and threshold days for Gualeguaychu (ARM00087497), Argentina, with 61 years of record.

Key Facts for Gualeguaychu

Gualeguaychu (ARM00087497) is a weather station in Argentina at -33.01 latitude and -58.61 longitude, 23 m (75 ft) above sea level.
The station reports from 1965 to 2025, 61 years of record.
1,464 records set at Gualeguaychu still stand.
Records are tracked for tmin: an element needs 30 years of data to be eligible.
Gualeguaychu set a daily record low minimum temperature of -4.2 C (24.4 F) on 3 July 2025.

About the Station

Location: Argentina, -33.01 latitude, -58.61 longitude.
Elevation: 23 m (75 ft).
Period of record: 1965 to 2025, 61 years.
Eligible elements: tmin.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Gualeguaychu. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Gualeguaychu, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	41.9 C (107.4 F)	7.0 C (44.6 F)	n/a	n/a
Feb	40.5 C (104.9 F)	6.0 C (42.8 F)	n/a	n/a
Mar	40.5 C (104.9 F)	3.6 C (38.5 F)	n/a	n/a
Apr	36.0 C (96.8 F)	0.2 C (32.4 F)	n/a	n/a
May	33.0 C (91.4 F)	-10.6 C (12.9 F)	n/a	n/a
Jun	29.0 C (84.2 F)	-5.7 C (21.7 F)	n/a	n/a
Jul	32.0 C (89.6 F)	-7.6 C (18.3 F)	n/a	n/a
Aug	34.7 C (94.5 F)	-5.1 C (22.8 F)	n/a	n/a
Sep	37.0 C (98.6 F)	-3.0 C (26.6 F)	n/a	n/a
Oct	37.1 C (98.8 F)	-2.0 C (28.4 F)	n/a	n/a
Nov	39.3 C (102.7 F)	1.0 C (33.8 F)	n/a	n/a
Dec	40.7 C (105.3 F)	5.5 C (41.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Gualeguaychu still stand. 1968 holds the most, with 46.

Standing records at Gualeguaychu by the year they were set
Year set	Standing records
1967	4
1968	46
1973	16
1974	19
1975	14
1976	16
1977	16
1978	18
1979	33
1980	43
1981	36
1982	12
1983	23
1984	18
1987	18
1988	39
1989	27
1990	30
1991	27
1992	27
1993	25
1994	29
1995	31
1996	25
1997	27
1998	26
1999	33
2000	23
2001	38
2002	43
2003	34
2004	33
2005	25
2006	25
2007	41
2008	38
2009	26
2010	28
2011	17
2012	33
2013	36
2014	23
2015	29
2016	26
2017	28
2018	32
2019	24
2020	31
2021	15
2022	39
2023	40
2024	41
2025	18

Wettest Day of Each Month

Sep: 260.1 mm (10.2 in)

The wettest day on record for each calendar month at Gualeguaychu. The most was 260.1 mm (10.2 in) on 18 September 1978.

Record daily precipitation for each month at Gualeguaychu
Month	Record daily precipitation (mm)	Date
Jan	168.9 mm (6.6 in)	7 January 2015
Feb	110.0 mm (4.3 in)	27 February 2022
Mar	185.2 mm (7.3 in)	29 March 2002
Apr	165.1 mm (6.5 in)	20 April 1982
May	114.0 mm (4.5 in)	18 May 2025
Jun	118.1 mm (4.6 in)	25 June 2006
Jul	112.0 mm (4.4 in)	31 July 1994
Aug	74.9 mm (2.9 in)	18 August 2012
Sep	260.1 mm (10.2 in)	18 September 1978
Oct	106.9 mm (4.2 in)	22 October 2014
Nov	95.0 mm (3.7 in)	26 November 1993
Dec	126.0 mm (5.0 in)	23 December 2009

Period of Record Coverage

1965 to 2025

56 years of record at Gualeguaychu, 1965 to 2025. 56 years have data for under 90 percent of days and are left out of rankings: 1965, 1967, 1968, 1973, 1974, 1975, 1976, 1977 and others.

Days with data per year at Gualeguaychu
Year	Days with data	Share of year	Complete
1965	5	1%	No
1967	13	4%	No
1968	276	75%	No
1973	3	1%	No
1974	2	1%	No
1975	1	0%	No
1976	1	0%	No
1977	4	1%	No
1978	38	10%	No
1979	164	45%	No
1980	165	45%	No
1981	182	50%	No
1982	124	34%	No
1983	146	40%	No
1984	109	30%	No
1985	1	0%	No
1986	3	1%	No
1987	76	21%	No
1988	155	42%	No
1989	163	45%	No
1990	171	47%	No
1991	154	42%	No
1992	162	44%	No
1993	165	45%	No
1994	146	40%	No
1995	167	46%	No
1996	175	48%	No
1997	174	48%	No
1998	167	46%	No
1999	170	47%	No
2000	168	46%	No
2001	166	45%	No
2002	168	46%	No
2003	167	46%	No
2004	172	47%	No
2005	135	37%	No
2006	168	46%	No
2007	186	51%	No
2008	169	46%	No
2009	155	42%	No
2010	175	48%	No
2011	164	45%	No
2012	169	46%	No
2013	172	47%	No
2014	166	45%	No
2015	171	47%	No
2016	182	50%	No
2017	179	49%	No
2018	158	43%	No
2019	155	42%	No
2020	165	45%	No
2021	163	45%	No
2022	153	42%	No
2023	159	44%	No
2024	171	47%	No
2025	95	26%	No

Latest Records

Latest records at Gualeguaychu
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 July 2025	Gualeguaychu, AR	daily low min	-4.2 C (24.4 F)	1.1 C (2.0 F)	36 years	18 of 100 (Routine)
2 July 2025	Gualeguaychu, AR	daily low min	-6.4 C (20.5 F)	4.7 C (8.5 F)	14 years	19 of 100 (Routine)
1 July 2025	Gualeguaychu, AR	daily low min	-5.3 C (22.5 F)	2.3 C (4.1 F)	14 years	14 of 100 (Routine)
27 June 2025	Gualeguaychu, AR	daily low min	-3.4 C (25.9 F)	0.7 C (1.3 F)	14 years	11 of 100 (Routine)
16 May 2025	Gualeguaychu, AR	daily high min	18.8 C (65.8 F)	1.0 C (1.8 F)	22 years	14 of 100 (Routine)
8 May 2025	Gualeguaychu, AR	daily high min	19.7 C (67.5 F)	1.2 C (2.2 F)	7 years	10 of 100 (Routine)
5 May 2025	Gualeguaychu, AR	daily high min	17.7 C (63.9 F)	0.8 C (1.4 F)	6 years	8 of 100 (Routine)
10 March 2025	Gualeguaychu, AR	daily low min	11.6 C (52.9 F)	0.1 C (0.2 F)	20 years	12 of 100 (Routine)
6 March 2025	Gualeguaychu, AR	daily high min	25.8 C (78.4 F)	3.0 C (5.4 F)	56 years	31 of 100 (Routine)
5 March 2025	Gualeguaychu, AR	daily high min	25.4 C (77.7 F)	2.4 C (4.3 F)	50 years	27 of 100 (Routine)
4 February 2025	Gualeguaychu, AR	daily high min	24.5 C (76.1 F)	1.5 C (2.7 F)	46 years	23 of 100 (Routine)
17 January 2025	Gualeguaychu, AR	daily high min (Tie)	23.0 C (73.4 F)	tie	48 years	5 of 100 (Routine)
16 January 2025	Gualeguaychu, AR	daily high min	23.6 C (74.5 F)	0.5 C (0.9 F)	28 years	15 of 100 (Routine)
26 December 2024	Gualeguaychu, AR	daily low min (Tie)	12.0 C (53.6 F)	tie	2 years	1 of 100 (Routine)
8 December 2024	Gualeguaychu, AR	daily low min (Tie)	9.0 C (48.2 F)	tie	47 years	5 of 100 (Routine)
4 December 2024	Gualeguaychu, AR	daily low min	10.6 C (51.1 F)	0.4 C (0.7 F)	15 years	11 of 100 (Routine)
16 November 2024	Gualeguaychu, AR	daily high min	20.0 C (68.0 F)	0.9 C (1.6 F)	22 years	14 of 100 (Routine)
2 November 2024	Gualeguaychu, AR	daily high min	20.5 C (68.9 F)	0.9 C (1.6 F)	15 years	12 of 100 (Routine)
23 October 2024	Gualeguaychu, AR	daily high min	20.6 C (69.1 F)	2.7 C (4.9 F)	27 years	20 of 100 (Routine)
22 October 2024	Gualeguaychu, AR	daily high min	22.0 C (71.6 F)	3.5 C (6.3 F)	33 years	23 of 100 (Routine)

Extremes by Year

1965 to 2025

Yearly extremes at Gualeguaychu: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.9 C (107.4 F)	2022	37.9 C (100.1 F)	56
Coldest night (TNn)	-10.6 C (12.9 F)	1984	-3.4 C (25.9 F)	55
Wettest day (Rx1day)	260.1 mm (10.2 in)	1978	87.1 mm (3.4 in)	55
Wettest five days (Rx5day)	406.9 mm (16.0 in)	2007	112.6 mm (4.4 in)	54
Longest dry spell (CDD)	30 days	1981	7 days	55

Hottest day (TXx)

The hottest day of the year at Gualeguaychu, 1965 to 2025. The record is 41.9 C (107.4 F) in 2022, marked on the chart; the median year is 37.9 C (100.1 F).

Hottest day (TXx) at Gualeguaychu by year
Year	Hottest day (TXx)
1965	27.8 C (82.0 F)
1967	22.2 C (72.0 F)
1968	38.9 C (102.0 F)
1973	22.0 C (71.6 F)
1974	28.0 C (82.4 F)
1975	34.0 C (93.2 F)
1976	28.0 C (82.4 F)
1977	32.0 C (89.6 F)
1978	34.0 C (93.2 F)
1979	38.0 C (100.4 F)
1980	40.0 C (104.0 F)
1981	37.0 C (98.6 F)
1982	39.1 C (102.4 F)
1983	40.0 C (104.0 F)
1984	35.2 C (95.4 F)
1985	25.6 C (78.1 F)
1986	25.0 C (77.0 F)
1987	37.1 C (98.8 F)
1988	37.7 C (99.9 F)
1989	39.4 C (102.9 F)
1990	40.8 C (105.4 F)
1991	37.1 C (98.8 F)
1992	36.0 C (96.8 F)
1993	37.0 C (98.6 F)
1994	39.0 C (102.2 F)
1995	39.5 C (103.1 F)
1996	40.0 C (104.0 F)
1997	38.4 C (101.1 F)
1998	36.1 C (97.0 F)
1999	40.7 C (105.3 F)
2000	39.0 C (102.2 F)
2001	36.9 C (98.4 F)
2002	37.0 C (98.6 F)
2003	38.5 C (101.3 F)
2004	37.3 C (99.1 F)
2005	39.8 C (103.6 F)
2006	41.0 C (105.8 F)
2007	37.1 C (98.8 F)
2008	39.8 C (103.6 F)
2009	36.7 C (98.1 F)
2010	38.0 C (100.4 F)
2011	37.6 C (99.7 F)
2012	40.1 C (104.2 F)
2013	40.1 C (104.2 F)
2014	38.5 C (101.3 F)
2015	35.5 C (95.9 F)
2016	39.1 C (102.4 F)
2017	36.4 C (97.5 F)
2018	37.5 C (99.5 F)
2019	36.8 C (98.2 F)
2020	39.3 C (102.7 F)
2021	39.1 C (102.4 F)
2022	41.9 C (107.4 F)
2023	40.5 C (104.9 F)
2024	38.9 C (102.0 F)
2025	39.3 C (102.7 F)

Coldest night (TNn)

The coldest night of the year at Gualeguaychu, 1965 to 2025. The record is -10.6 C (12.9 F) in 1984, marked on the chart; the median year is -3.4 C (25.9 F).

Coldest night (TNn) at Gualeguaychu by year
Year	Coldest night (TNn)
1965	2.2 C (36.0 F)
1967	0.0 C (32.0 F)
1968	-2.2 C (28.0 F)
1973	-1.0 C (30.2 F)
1974	-5.0 C (23.0 F)
1975	-5.0 C (23.0 F)
1976	-4.0 C (24.8 F)
1977	-5.0 C (23.0 F)
1978	-2.0 C (28.4 F)
1979	-4.0 C (24.8 F)
1980	-4.0 C (24.8 F)
1981	-3.0 C (26.6 F)
1982	4.1 C (39.4 F)
1983	0.0 C (32.0 F)
1984	-10.6 C (12.9 F)
1985	n/a
1986	13.7 C (56.7 F)
1987	-2.8 C (27.0 F)
1988	-4.9 C (23.2 F)
1989	-3.1 C (26.4 F)
1990	-5.0 C (23.0 F)
1991	-4.0 C (24.8 F)
1992	-3.3 C (26.1 F)
1993	-3.9 C (25.0 F)
1994	-2.1 C (28.2 F)
1995	-5.7 C (21.7 F)
1996	-3.7 C (25.3 F)
1997	-3.5 C (25.7 F)
1998	0.6 C (33.1 F)
1999	-2.3 C (27.9 F)
2000	-2.2 C (28.0 F)
2001	-2.4 C (27.7 F)
2002	-5.1 C (22.8 F)
2003	-2.3 C (27.9 F)
2004	-3.6 C (25.5 F)
2005	-0.4 C (31.3 F)
2006	-3.4 C (25.9 F)
2007	-4.2 C (24.4 F)
2008	-4.0 C (24.8 F)
2009	-2.8 C (27.0 F)
2010	-4.1 C (24.6 F)
2011	-4.0 C (24.8 F)
2012	-4.8 C (23.4 F)
2013	-4.5 C (23.9 F)
2014	-1.0 C (30.2 F)
2015	-4.4 C (24.1 F)
2016	-2.1 C (28.2 F)
2017	-1.5 C (29.3 F)
2018	-2.8 C (27.0 F)
2019	-4.2 C (24.4 F)
2020	-4.4 C (24.1 F)
2021	-2.4 C (27.7 F)
2022	-2.7 C (27.1 F)
2023	-2.3 C (27.9 F)
2024	-7.6 C (18.3 F)
2025	-6.4 C (20.5 F)

Wettest day (Rx1day)

The wettest day of the year at Gualeguaychu, 1965 to 2025. The record is 260.1 mm (10.2 in) in 1978, marked on the chart; the median year is 87.1 mm (3.4 in).

Wettest day (Rx1day) at Gualeguaychu by year
Year	Wettest day (Rx1day)
1965	n/a
1967	59.9 mm (2.4 in)
1968	70.1 mm (2.8 in)
1973	140.0 mm (5.5 in)
1974	53.1 mm (2.1 in)
1975	7.1 mm (0.28 in)
1976	59.9 mm (2.4 in)
1977	59.9 mm (2.4 in)
1978	260.1 mm (10.2 in)
1979	54.1 mm (2.1 in)
1980	80.0 mm (3.1 in)
1981	89.9 mm (3.5 in)
1982	165.1 mm (6.5 in)
1983	64.0 mm (2.5 in)
1984	103.9 mm (4.1 in)
1985	0.0 mm (0.00 in)
1986	2.0 mm (0.08 in)
1987	71.9 mm (2.8 in)
1988	87.1 mm (3.4 in)
1989	68.1 mm (2.7 in)
1990	90.9 mm (3.6 in)
1991	56.9 mm (2.2 in)
1992	95.0 mm (3.7 in)
1993	95.0 mm (3.7 in)
1994	112.0 mm (4.4 in)
1995	96.0 mm (3.8 in)
1996	65.0 mm (2.6 in)
1997	71.1 mm (2.8 in)
1998	51.1 mm (2.0 in)
1999	9.7 mm (0.38 in)
2000	69.1 mm (2.7 in)
2001	73.9 mm (2.9 in)
2002	185.2 mm (7.3 in)
2003	61.0 mm (2.4 in)
2004	93.0 mm (3.7 in)
2005	59.9 mm (2.4 in)
2006	118.1 mm (4.6 in)
2007	156.0 mm (6.1 in)
2008	164.1 mm (6.5 in)
2009	176.0 mm (6.9 in)
2010	95.0 mm (3.7 in)
2011	87.9 mm (3.5 in)
2012	91.9 mm (3.6 in)
2013	74.9 mm (2.9 in)
2014	106.9 mm (4.2 in)
2015	168.9 mm (6.6 in)
2016	82.0 mm (3.2 in)
2017	88.9 mm (3.5 in)
2018	119.9 mm (4.7 in)
2019	71.1 mm (2.8 in)
2020	70.1 mm (2.8 in)
2021	87.1 mm (3.4 in)
2022	110.0 mm (4.3 in)
2023	99.1 mm (3.9 in)
2024	119.1 mm (4.7 in)
2025	114.0 mm (4.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Gualeguaychu, 1965 to 2025. The record is 406.9 mm (16.0 in) in 2007, marked on the chart; the median year is 112.6 mm (4.4 in).

Wettest five days (Rx5day) at Gualeguaychu by year
Year	Wettest five days (Rx5day)
1965	n/a
1967	51.5 mm (2.0 in)
1968	58.2 mm (2.3 in)
1973	141.0 mm (5.6 in)
1974	112.1 mm (4.4 in)
1975	15.2 mm (0.6 in)
1976	80.0 mm (3.1 in)
1977	100.9 mm (4.0 in)
1978	330.2 mm (13.0 in)
1979	62.0 mm (2.4 in)
1980	80.5 mm (3.2 in)
1981	138.7 mm (5.5 in)
1982	56.9 mm (2.2 in)
1983	82.0 mm (3.2 in)
1984	158.1 mm (6.2 in)
1985	0.0 mm (0.00 in)
1986	0.0 mm (0.00 in)
1987	70.9 mm (2.8 in)
1988	121.1 mm (4.8 in)
1989	86.1 mm (3.4 in)
1990	97.8 mm (3.9 in)
1991	119.9 mm (4.7 in)
1992	73.9 mm (2.9 in)
1993	124.0 mm (4.9 in)
1994	124.3 mm (4.9 in)
1995	122.2 mm (4.8 in)
1996	67.8 mm (2.7 in)
1997	94.0 mm (3.7 in)
1998	74.6 mm (2.9 in)
1999	11.2 mm (0.4 in)
2000	0.8 mm (0.03 in)
2001	n/a
2002	113.0 mm (4.4 in)
2003	114.8 mm (4.5 in)
2004	93.8 mm (3.7 in)
2005	122.9 mm (4.8 in)
2006	153.7 mm (6.1 in)
2007	406.9 mm (16.0 in)
2008	115.1 mm (4.5 in)
2009	272.8 mm (10.7 in)
2010	179.8 mm (7.1 in)
2011	77.0 mm (3.0 in)
2012	166.1 mm (6.5 in)
2013	50.8 mm (2.0 in)
2014	157.9 mm (6.2 in)
2015	204.0 mm (8.0 in)
2016	151.9 mm (6.0 in)
2017	222.9 mm (8.8 in)
2018	219.7 mm (8.6 in)
2019	142.2 mm (5.6 in)
2020	105.1 mm (4.1 in)
2021	69.9 mm (2.8 in)
2022	152.0 mm (6.0 in)
2023	163.9 mm (6.5 in)
2024	210.1 mm (8.3 in)
2025	105.6 mm (4.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Gualeguaychu, 1965 to 2025. The record is 30 days in 1981, marked on the chart; the median year is 7 days.

Longest dry spell (CDD) at Gualeguaychu by year
Year	Longest dry spell (CDD)
1965	n/a
1967	3 days
1968	5 days
1973	11 days
1974	16 days
1975	7 days
1976	5 days
1977	14 days
1978	24 days
1979	27 days
1980	13 days
1981	30 days
1982	8 days
1983	12 days
1984	7 days
1985	12 days
1986	10 days
1987	13 days
1988	11 days
1989	8 days
1990	6 days
1991	9 days
1992	9 days
1993	5 days
1994	6 days
1995	11 days
1996	7 days
1997	8 days
1998	11 days
1999	12 days
2000	5 days
2001	3 days
2002	7 days
2003	17 days
2004	20 days
2005	18 days
2006	3 days
2007	3 days
2008	3 days
2009	2 days
2010	7 days
2011	4 days
2012	3 days
2013	3 days
2014	2 days
2015	3 days
2016	6 days
2017	2 days
2018	2 days
2019	4 days
2020	3 days
2021	5 days
2022	2 days
2023	3 days
2024	2 days
2025	3 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Gualeguaychu standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Gualeguaychu threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).