Rosario Weather Records (ARM00087480)

Record envelope, standing records and threshold days for Rosario (ARM00087480), Argentina, with 61 years of record.

Key Facts for Rosario

Rosario (ARM00087480) is a weather station in Argentina at -32.90 latitude and -60.78 longitude, 26 m (85 ft) above sea level.
The station reports from 1965 to 2025, 61 years of record.
1,464 records set at Rosario still stand.
Records are tracked for tmin: an element needs 30 years of data to be eligible.
Rosario set a daily record low minimum temperature of -4.0 C (24.8 F) on 2 July 2025.

About the Station

Location: Argentina, -32.90 latitude, -60.78 longitude.
Elevation: 26 m (85 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 Rosario. 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 Rosario, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.6 C (105.1 F)	3.8 C (38.8 F)	n/a	n/a
Feb	39.5 C (103.1 F)	5.0 C (41.0 F)	n/a	n/a
Mar	39.0 C (102.2 F)	3.0 C (37.4 F)	n/a	n/a
Apr	34.3 C (93.7 F)	-0.9 C (30.4 F)	n/a	n/a
May	32.9 C (91.2 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	29.0 C (84.2 F)	-7.8 C (18.0 F)	n/a	n/a
Jul	31.6 C (88.9 F)	-8.4 C (16.9 F)	n/a	n/a
Aug	33.7 C (92.7 F)	-7.8 C (18.0 F)	n/a	n/a
Sep	37.3 C (99.1 F)	-4.0 C (24.8 F)	n/a	n/a
Oct	38.0 C (100.4 F)	-1.2 C (29.8 F)	n/a	n/a
Nov	39.4 C (102.9 F)	1.8 C (35.2 F)	n/a	n/a
Dec	39.6 C (103.3 F)	6.2 C (43.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Rosario still stand. 1968 holds the most, with 51.

Standing records at Rosario by the year they were set
Year set	Standing records
1965	3
1966	2
1967	11
1968	51
1973	20
1974	24
1975	14
1976	17
1977	16
1978	17
1979	35
1980	38
1981	22
1982	10
1983	23
1984	27
1987	12
1988	35
1989	27
1990	24
1991	23
1992	24
1993	30
1994	21
1995	39
1996	18
1997	31
1998	24
1999	26
2000	22
2001	45
2002	39
2003	27
2004	26
2005	22
2006	34
2007	33
2008	35
2009	22
2010	22
2011	23
2012	31
2013	44
2014	29
2015	22
2016	33
2017	34
2018	36
2019	31
2020	41
2021	17
2022	42
2023	49
2024	29
2025	12

All-Time Record Progression

1 new records

1 all-time records were set at Rosario between 14 July 2020 and 14 July 2020. Each dot is a new record.

Wettest Day of Each Month

Oct: 287.0 mm (11.3 in)

The wettest day on record for each calendar month at Rosario. The most was 287.0 mm (11.3 in) on 29 October 1991.

Record daily precipitation for each month at Rosario
Month	Record daily precipitation (mm)	Date
Jan	91.9 mm (3.6 in)	25 January 2009
Feb	258.1 mm (10.2 in)	8 February 1981
Mar	273.1 mm (10.8 in)	21 March 2005
Apr	201.9 mm (7.9 in)	26 April 1994
May	183.9 mm (7.2 in)	12 May 1991
Jun	50.0 mm (2.0 in)	8 June 1973
Jul	99.1 mm (3.9 in)	7 July 1990
Aug	106.9 mm (4.2 in)	25 August 1998
Sep	169.9 mm (6.7 in)	18 September 1993
Oct	287.0 mm (11.3 in)	29 October 1991
Nov	154.9 mm (6.1 in)	4 November 1977
Dec	240.0 mm (9.4 in)	4 December 1978

Period of Record Coverage

1965 to 2025

56 years of record at Rosario, 1965 to 2025. 56 years have data for under 90 percent of days and are left out of rankings: 1965, 1966, 1967, 1968, 1973, 1974, 1975, 1976 and others.

Days with data per year at Rosario
Year	Days with data	Share of year	Complete
1965	10	3%	No
1966	1	0%	No
1967	29	8%	No
1968	294	80%	No
1973	4	1%	No
1974	2	1%	No
1975	3	1%	No
1976	1	0%	No
1977	2	1%	No
1978	38	10%	No
1979	163	45%	No
1980	170	46%	No
1981	182	50%	No
1982	130	36%	No
1983	153	42%	No
1984	126	34%	No
1985	1	0%	No
1987	88	24%	No
1988	165	45%	No
1989	163	45%	No
1990	111	30%	No
1991	153	42%	No
1992	153	42%	No
1993	149	41%	No
1994	158	43%	No
1995	157	43%	No
1996	155	42%	No
1997	174	48%	No
1998	171	47%	No
1999	177	48%	No
2000	166	45%	No
2001	165	45%	No
2002	171	47%	No
2003	156	43%	No
2004	156	43%	No
2005	154	42%	No
2006	155	42%	No
2007	142	39%	No
2008	154	42%	No
2009	141	39%	No
2010	169	46%	No
2011	165	45%	No
2012	163	45%	No
2013	167	46%	No
2014	131	36%	No
2015	180	49%	No
2016	192	52%	No
2017	172	47%	No
2018	159	44%	No
2019	150	41%	No
2020	155	42%	No
2021	164	45%	No
2022	178	49%	No
2023	181	50%	No
2024	165	45%	No
2025	116	32%	No

Latest Records

Latest records at Rosario
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 July 2025	Rosario, AR	daily low min	-4.0 C (24.8 F)	0.8 C (1.4 F)	16 years	11 of 100 (Routine)
1 July 2025	Rosario, AR	daily low min	-6.8 C (19.8 F)	2.8 C (5.0 F)	44 years	24 of 100 (Routine)
17 May 2025	Rosario, AR	daily high min	18.8 C (65.8 F)	1.8 C (3.2 F)	28 years	17 of 100 (Routine)
15 May 2025	Rosario, AR	daily high min	16.6 C (61.9 F)	0.9 C (1.6 F)	42 years	19 of 100 (Routine)
6 March 2025	Rosario, AR	daily high min	25.4 C (77.7 F)	2.4 C (4.3 F)	48 years	26 of 100 (Routine)
23 February 2025	Rosario, AR	daily high min (Tie)	23.0 C (73.4 F)	tie	48 years	5 of 100 (Routine)
22 February 2025	Rosario, AR	daily high min	25.7 C (78.3 F)	0.1 C (0.2 F)	9 years	8 of 100 (Routine)
25 November 2024	Rosario, AR	daily high min	22.6 C (72.7 F)	0.6 C (1.1 F)	34 years	17 of 100 (Routine)
12 November 2024	Rosario, AR	daily low min	5.6 C (42.1 F)	2.4 C (4.3 F)	47 years	26 of 100 (Routine)
21 October 2024	Rosario, AR	daily high min	21.0 C (69.8 F)	0.1 C (0.2 F)	26 years	13 of 100 (Routine)
2 August 2024	Rosario, AR	daily high min	17.7 C (63.9 F)	1.7 C (3.1 F)	43 years	21 of 100 (Routine)
22 June 2024	Rosario, AR	daily high min	15.2 C (59.4 F)	3.2 C (5.8 F)	48 years	26 of 100 (Routine)
22 April 2024	Rosario, AR	daily high min	19.6 C (67.3 F)	3.4 C (6.1 F)	35 years	23 of 100 (Routine)
21 April 2024	Rosario, AR	daily high min	19.0 C (66.2 F)	1.0 C (1.8 F)	49 years	22 of 100 (Routine)
18 March 2024	Rosario, AR	daily high min	22.4 C (72.3 F)	0.4 C (0.7 F)	44 years	20 of 100 (Routine)
8 February 2024	Rosario, AR	daily high min	25.8 C (78.4 F)	2.7 C (4.9 F)	8 years	15 of 100 (Routine)
15 December 2023	Rosario, AR	daily high min	23.4 C (74.1 F)	1.8 C (3.2 F)	33 years	20 of 100 (Routine)
29 November 2023	Rosario, AR	daily high min	22.6 C (72.7 F)	1.7 C (3.1 F)	0 years	9 of 100 (Routine)
5 July 2023	Rosario, AR	daily high min	15.4 C (59.7 F)	0.4 C (0.7 F)	48 years	19 of 100 (Routine)
4 July 2023	Rosario, AR	daily high min	15.7 C (60.3 F)	1.9 C (3.4 F)	24 years	15 of 100 (Routine)

Extremes by Year

1965 to 2025

Yearly extremes at Rosario: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	2022	37.3 C (99.1 F)	56
Coldest night (TNn)	-8.4 C (16.9 F)	2020	-4.3 C (24.2 F)	56
Wettest day (Rx1day)	287.0 mm (11.3 in)	1991	81.6 mm (3.2 in)	56
Wettest five days (Rx5day)	418.1 mm (16.5 in)	1978	92.9 mm (3.7 in)	51
Longest dry spell (CDD)	31 days	1981	6 days	56

Hottest day (TXx)

The hottest day of the year at Rosario, 1965 to 2025. The record is 40.6 C (105.1 F) in 2022, marked on the chart; the median year is 37.3 C (99.1 F).

Hottest day (TXx) at Rosario by year
Year	Hottest day (TXx)
1965	33.9 C (93.0 F)
1966	25.0 C (77.0 F)
1967	37.2 C (99.0 F)
1968	36.1 C (97.0 F)
1973	27.0 C (80.6 F)
1974	29.0 C (84.2 F)
1975	35.0 C (95.0 F)
1976	30.0 C (86.0 F)
1977	32.0 C (89.6 F)
1978	35.0 C (95.0 F)
1979	38.0 C (100.4 F)
1980	39.0 C (102.2 F)
1981	38.0 C (100.4 F)
1982	37.3 C (99.1 F)
1983	38.6 C (101.5 F)
1984	35.5 C (95.9 F)
1985	18.9 C (66.0 F)
1986	n/a
1987	35.5 C (95.9 F)
1988	37.7 C (99.9 F)
1989	38.5 C (101.3 F)
1990	38.0 C (100.4 F)
1991	35.5 C (95.9 F)
1992	33.8 C (92.8 F)
1993	35.3 C (95.5 F)
1994	36.7 C (98.1 F)
1995	39.6 C (103.3 F)
1996	36.5 C (97.7 F)
1997	37.0 C (98.6 F)
1998	37.0 C (98.6 F)
1999	39.1 C (102.4 F)
2000	38.3 C (100.9 F)
2001	36.7 C (98.1 F)
2002	36.5 C (97.7 F)
2003	39.3 C (102.7 F)
2004	37.6 C (99.7 F)
2005	38.4 C (101.1 F)
2006	40.5 C (104.9 F)
2007	36.0 C (96.8 F)
2008	38.2 C (100.8 F)
2009	37.5 C (99.5 F)
2010	36.6 C (97.9 F)
2011	38.7 C (101.7 F)
2012	39.8 C (103.6 F)
2013	38.2 C (100.8 F)
2014	38.6 C (101.5 F)
2015	35.0 C (95.0 F)
2016	37.9 C (100.2 F)
2017	36.8 C (98.2 F)
2018	37.2 C (99.0 F)
2019	36.7 C (98.1 F)
2020	39.4 C (102.9 F)
2021	39.2 C (102.6 F)
2022	40.6 C (105.1 F)
2023	39.8 C (103.6 F)
2024	38.4 C (101.1 F)
2025	39.5 C (103.1 F)

Coldest night (TNn)

The coldest night of the year at Rosario, 1965 to 2025. The record is -8.4 C (16.9 F) in 2020, marked on the chart; the median year is -4.3 C (24.2 F).

Coldest night (TNn) at Rosario by year
Year	Coldest night (TNn)
1965	-2.2 C (28.0 F)
1966	-5.0 C (23.0 F)
1967	-7.8 C (18.0 F)
1968	-6.1 C (21.0 F)
1973	-2.0 C (28.4 F)
1974	-4.0 C (24.8 F)
1975	-5.0 C (23.0 F)
1976	-5.0 C (23.0 F)
1977	-3.0 C (26.6 F)
1978	-4.0 C (24.8 F)
1979	-5.0 C (23.0 F)
1980	-4.0 C (24.8 F)
1981	-3.0 C (26.6 F)
1982	1.5 C (34.7 F)
1983	-4.0 C (24.8 F)
1984	-4.9 C (23.2 F)
1985	n/a
1986	18.4 C (65.1 F)
1987	-2.5 C (27.5 F)
1988	-6.5 C (20.3 F)
1989	-5.5 C (22.1 F)
1990	-3.7 C (25.3 F)
1991	-5.7 C (21.7 F)
1992	-3.0 C (26.6 F)
1993	-6.0 C (21.2 F)
1994	-3.0 C (26.6 F)
1995	-7.8 C (18.0 F)
1996	-4.5 C (23.9 F)
1997	-3.8 C (25.2 F)
1998	-2.1 C (28.2 F)
1999	-5.3 C (22.5 F)
2000	-3.2 C (26.2 F)
2001	-3.3 C (26.1 F)
2002	-3.2 C (26.2 F)
2003	-3.6 C (25.5 F)
2004	-6.2 C (20.8 F)
2005	-2.0 C (28.4 F)
2006	-4.9 C (23.2 F)
2007	-5.4 C (22.3 F)
2008	-5.7 C (21.7 F)
2009	-5.9 C (21.4 F)
2010	-4.2 C (24.4 F)
2011	-4.2 C (24.4 F)
2012	-5.5 C (22.1 F)
2013	-5.8 C (21.6 F)
2014	-3.6 C (25.5 F)
2015	-4.6 C (23.7 F)
2016	-2.1 C (28.2 F)
2017	-6.7 C (19.9 F)
2018	-5.4 C (22.3 F)
2019	-4.0 C (24.8 F)
2020	-8.4 C (16.9 F)
2021	-5.3 C (22.5 F)
2022	-7.7 C (18.1 F)
2023	-2.1 C (28.2 F)
2024	-4.2 C (24.4 F)
2025	-6.8 C (19.8 F)

Wettest day (Rx1day)

The wettest day of the year at Rosario, 1965 to 2025. The record is 287.0 mm (11.3 in) in 1991, marked on the chart; the median year is 81.6 mm (3.2 in).

Wettest day (Rx1day) at Rosario by year
Year	Wettest day (Rx1day)
1965	27.9 mm (1.1 in)
1966	n/a
1967	80.0 mm (3.1 in)
1968	47.0 mm (1.9 in)
1973	50.0 mm (2.0 in)
1974	80.0 mm (3.1 in)
1975	16.0 mm (0.6 in)
1976	39.9 mm (1.6 in)
1977	154.9 mm (6.1 in)
1978	240.0 mm (9.4 in)
1979	89.9 mm (3.5 in)
1980	52.1 mm (2.1 in)
1981	258.1 mm (10.2 in)
1982	57.9 mm (2.3 in)
1983	110.0 mm (4.3 in)
1984	95.0 mm (3.7 in)
1985	0.0 mm (0.00 in)
1986	0.0 mm (0.00 in)
1987	52.1 mm (2.1 in)
1988	53.1 mm (2.1 in)
1989	74.9 mm (2.9 in)
1990	144.0 mm (5.7 in)
1991	287.0 mm (11.3 in)
1992	55.1 mm (2.2 in)
1993	169.9 mm (6.7 in)
1994	201.9 mm (7.9 in)
1995	182.1 mm (7.2 in)
1996	87.9 mm (3.5 in)
1997	83.1 mm (3.3 in)
1998	130.0 mm (5.1 in)
1999	25.7 mm (1.0 in)
2000	120.9 mm (4.8 in)
2001	71.9 mm (2.8 in)
2002	70.1 mm (2.8 in)
2003	64.0 mm (2.5 in)
2004	55.9 mm (2.2 in)
2005	273.1 mm (10.8 in)
2006	59.9 mm (2.4 in)
2007	143.0 mm (5.6 in)
2008	71.6 mm (2.8 in)
2009	108.0 mm (4.3 in)
2010	112.0 mm (4.4 in)
2011	117.1 mm (4.6 in)
2012	178.1 mm (7.0 in)
2013	119.9 mm (4.7 in)
2014	68.1 mm (2.7 in)
2015	91.9 mm (3.6 in)
2016	99.1 mm (3.9 in)
2017	84.1 mm (3.3 in)
2018	67.3 mm (2.6 in)
2019	195.1 mm (7.7 in)
2020	131.1 mm (5.2 in)
2021	61.0 mm (2.4 in)
2022	72.9 mm (2.9 in)
2023	93.7 mm (3.7 in)
2024	73.9 mm (2.9 in)
2025	3.0 mm (0.12 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rosario, 1965 to 2025. The record is 418.1 mm (16.5 in) in 1978, marked on the chart; the median year is 92.9 mm (3.7 in).

Wettest five days (Rx5day) at Rosario by year
Year	Wettest five days (Rx5day)
1965	n/a
1966	n/a
1967	85.6 mm (3.4 in)
1968	108.2 mm (4.3 in)
1973	58.9 mm (2.3 in)
1974	80.0 mm (3.1 in)
1975	22.4 mm (0.9 in)
1976	79.0 mm (3.1 in)
1977	204.9 mm (8.1 in)
1978	418.1 mm (16.5 in)
1979	117.8 mm (4.6 in)
1980	78.3 mm (3.1 in)
1981	268.3 mm (10.6 in)
1982	63.0 mm (2.5 in)
1983	89.2 mm (3.5 in)
1984	127.0 mm (5.0 in)
1985	0.0 mm (0.00 in)
1986	0.0 mm (0.00 in)
1987	61.0 mm (2.4 in)
1988	66.3 mm (2.6 in)
1989	44.5 mm (1.8 in)
1990	144.0 mm (5.7 in)
1991	188.0 mm (7.4 in)
1992	33.3 mm (1.3 in)
1993	92.0 mm (3.6 in)
1994	203.9 mm (8.0 in)
1995	61.9 mm (2.4 in)
1996	83.1 mm (3.3 in)
1997	67.3 mm (2.6 in)
1998	136.9 mm (5.4 in)
1999	42.7 mm (1.7 in)
2000	141.7 mm (5.6 in)
2001	n/a
2002	136.6 mm (5.4 in)
2003	66.8 mm (2.6 in)
2004	64.8 mm (2.6 in)
2005	277.2 mm (10.9 in)
2006	92.9 mm (3.7 in)
2007	366.1 mm (14.4 in)
2008	61.2 mm (2.4 in)
2009	126.2 mm (5.0 in)
2010	212.1 mm (8.4 in)
2011	119.9 mm (4.7 in)
2012	248.2 mm (9.8 in)
2013	54.8 mm (2.2 in)
2014	173.6 mm (6.8 in)
2015	109.8 mm (4.3 in)
2016	131.0 mm (5.2 in)
2017	88.9 mm (3.5 in)
2018	101.8 mm (4.0 in)
2019	n/a
2020	n/a
2021	78.9 mm (3.1 in)
2022	96.8 mm (3.8 in)
2023	114.5 mm (4.5 in)
2024	117.1 mm (4.6 in)
2025	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Rosario, 1965 to 2025. The record is 31 days in 1981, marked on the chart; the median year is 6 days.

Longest dry spell (CDD) at Rosario by year
Year	Longest dry spell (CDD)
1965	1 day
1966	n/a
1967	3 days
1968	3 days
1973	12 days
1974	20 days
1975	7 days
1976	6 days
1977	13 days
1978	19 days
1979	23 days
1980	17 days
1981	31 days
1982	7 days
1983	9 days
1984	12 days
1985	6 days
1986	7 days
1987	8 days
1988	10 days
1989	10 days
1990	7 days
1991	8 days
1992	9 days
1993	6 days
1994	7 days
1995	6 days
1996	9 days
1997	31 days
1998	19 days
1999	8 days
2000	4 days
2001	3 days
2002	7 days
2003	16 days
2004	14 days
2005	10 days
2006	3 days
2007	4 days
2008	4 days
2009	3 days
2010	4 days
2011	5 days
2012	4 days
2013	3 days
2014	5 days
2015	3 days
2016	4 days
2017	6 days
2018	4 days
2019	1 day
2020	4 days
2021	4 days
2022	3 days
2023	3 days
2024	2 days
2025	1 day

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 Rosario standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rosario 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).