Buenos Aires Weather Records (MXN00015264)

Record envelope, standing records and threshold days for Buenos Aires (MXN00015264), Mexico, with 31 years of record.

Key Facts for Buenos Aires

Buenos Aires (MXN00015264) is a weather station in Mexico at 19.60 latitude and -99.67 longitude, 2,576 m (8,451 ft) above sea level.
The station reports from 1980 to 2010, 31 years of record.
1,464 records set at Buenos Aires still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.60 latitude, -99.67 longitude.
Elevation: 2,576 m (8,451 ft).
Period of record: 1980 to 2010, 31 years.
Eligible elements: none yet.

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 Buenos Aires. 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 Buenos Aires, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	30.6 C (87.1 F)	-5.6 C (21.9 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-6.1 C (21.0 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-7.2 C (19.0 F)	n/a	n/a
May	33.9 C (93.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	30.0 C (86.0 F)	0.0 C (32.0 F)	n/a	n/a
Aug	28.9 C (84.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	28.9 C (84.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Buenos Aires still stand. 1983 holds the most, with 230.

Standing records at Buenos Aires by the year they were set
Year set	Standing records
1980	37
1981	95
1982	64
1983	230
1984	48
1985	56
1986	75
1987	88
1988	67
1989	31
1990	48
1991	36
1992	56
1993	20
1994	24
1995	19
1996	45
1997	18
1998	35
1999	36
2000	27
2001	31
2002	25
2003	15
2004	1
2005	89
2006	20
2007	26
2008	32
2009	24
2010	46

Wettest Day of Each Month

Jun: 76.5 mm (3.0 in)

The wettest day on record for each calendar month at Buenos Aires. The most was 76.5 mm (3.0 in) on 6 June 1993.

Record daily precipitation for each month at Buenos Aires
Month	Record daily precipitation (mm)	Date
Jan	30.0 mm (1.2 in)	18 January 1994
Feb	72.9 mm (2.9 in)	4 February 2010
Mar	19.8 mm (0.8 in)	4 March 1988
Apr	47.0 mm (1.9 in)	30 April 1981
May	37.8 mm (1.5 in)	12 May 1986
Jun	76.5 mm (3.0 in)	6 June 1993
Jul	55.9 mm (2.2 in)	15 July 1995
Aug	72.9 mm (2.9 in)	13 August 2010
Sep	39.9 mm (1.6 in)	28 September 1998
Oct	47.2 mm (1.9 in)	11 October 2005
Nov	36.8 mm (1.4 in)	18 November 2003
Dec	26.4 mm (1.0 in)	2 December 1986

Period of Record Coverage

1980 to 2010

31 years of record at Buenos Aires, 1980 to 2010. 13 years have data for under 90 percent of days and are left out of rankings: 1980, 1982, 1984, 1985, 1989, 1990, 1995, 1997 and others.

Days with data per year at Buenos Aires
Year	Days with data	Share of year	Complete
1980	77	21%	No
1981	362	99%	Yes
1982	268	73%	No
1983	335	92%	Yes
1984	320	87%	No
1985	279	76%	No
1986	335	92%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	316	87%	No
1990	326	89%	No
1991	365	100%	Yes
1992	366	100%	Yes
1993	364	100%	Yes
1994	365	100%	Yes
1995	238	65%	No
1996	361	99%	Yes
1997	211	58%	No
1998	354	97%	Yes
1999	322	88%	No
2000	297	81%	No
2001	338	93%	Yes
2002	340	93%	Yes
2003	337	92%	Yes
2004	60	16%	No
2005	364	100%	Yes
2006	319	87%	No
2007	350	96%	Yes
2008	349	95%	Yes
2009	353	97%	Yes
2010	319	87%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

16 complete years, 1981 to 2009

One stripe for each of 16 complete years at Buenos Aires, 1981 to 2009. Blue stripes are years cooler than the station's own mean of 13.6 C (56.4 F); red stripes are warmer. The coolest year was 2005, at 12.4 C (54.3 F), and the warmest was 1981, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Buenos Aires as warming stripes, 1981 to 2009
Year	Annual mean temperature	Difference from the station mean
1981	14.7 C	+1.17 C
1987	14.0 C	+0.44 C
1988	14.1 C	+0.51 C
1991	13.5 C	-0.09 C
1992	13.1 C	-0.43 C
1993	13.3 C	-0.28 C
1994	13.3 C	-0.22 C
1996	12.8 C	-0.81 C
1998	14.0 C	+0.47 C
2001	12.8 C	-0.73 C
2002	14.0 C	+0.43 C
2003	13.9 C	+0.35 C
2005	12.4 C	-1.17 C
2007	13.5 C	-0.03 C
2008	13.5 C	-0.07 C
2009	14.0 C	+0.41 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1980 to 2010

Yearly extremes at Buenos Aires: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.9 C (93.0 F)	1989	30.0 C (86.0 F)	31
Coldest night (TNn)	-8.3 C (17.1 F)	1988	-5.0 C (23.0 F)	31
Wettest day (Rx1day)	76.5 mm (3.0 in)	1993	35.8 mm (1.4 in)	31
Wettest five days (Rx5day)	172.0 mm (6.8 in)	2010	68.1 mm (2.7 in)	31
Longest dry spell (CDD)	156 days	1993	51 days	31

Hottest day (TXx)

The hottest day of the year at Buenos Aires, 1980 to 2010. The record is 33.9 C (93.0 F) in 1989, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Buenos Aires by year
Year	Hottest day (TXx)
1980	32.8 C (91.0 F)
1981	30.6 C (87.1 F)
1982	30.6 C (87.1 F)
1983	30.0 C (86.0 F)
1984	28.9 C (84.0 F)
1985	31.7 C (89.1 F)
1986	28.9 C (84.0 F)
1987	30.0 C (86.0 F)
1988	30.6 C (87.1 F)
1989	33.9 C (93.0 F)
1990	28.9 C (84.0 F)
1991	30.0 C (86.0 F)
1992	30.0 C (86.0 F)
1993	28.9 C (84.0 F)
1994	27.8 C (82.0 F)
1995	30.6 C (87.1 F)
1996	27.8 C (82.0 F)
1997	27.8 C (82.0 F)
1998	31.7 C (89.1 F)
1999	30.0 C (86.0 F)
2000	26.7 C (80.1 F)
2001	28.9 C (84.0 F)
2002	30.0 C (86.0 F)
2003	30.6 C (87.1 F)
2004	27.8 C (82.0 F)
2005	30.0 C (86.0 F)
2006	28.9 C (84.0 F)
2007	30.0 C (86.0 F)
2008	30.0 C (86.0 F)
2009	30.0 C (86.0 F)
2010	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at Buenos Aires, 1980 to 2010. The record is -8.3 C (17.1 F) in 1988, marked on the chart; the median year is -5.0 C (23.0 F).

Coldest night (TNn) at Buenos Aires by year
Year	Coldest night (TNn)
1980	-7.2 C (19.0 F)
1981	-1.1 C (30.0 F)
1982	-6.1 C (21.0 F)
1983	-6.1 C (21.0 F)
1984	-6.1 C (21.0 F)
1985	-5.6 C (21.9 F)
1986	-6.1 C (21.0 F)
1987	-3.3 C (26.1 F)
1988	-8.3 C (17.1 F)
1989	-5.0 C (23.0 F)
1990	-5.0 C (23.0 F)
1991	-5.0 C (23.0 F)
1992	-5.0 C (23.0 F)
1993	-3.3 C (26.1 F)
1994	-4.4 C (24.1 F)
1995	-6.1 C (21.0 F)
1996	-8.3 C (17.1 F)
1997	0.0 C (32.0 F)
1998	0.0 C (32.0 F)
1999	0.0 C (32.0 F)
2000	0.0 C (32.0 F)
2001	0.0 C (32.0 F)
2002	-2.2 C (28.0 F)
2003	0.0 C (32.0 F)
2004	-2.2 C (28.0 F)
2005	-5.0 C (23.0 F)
2006	-8.3 C (17.1 F)
2007	-4.4 C (24.1 F)
2008	-7.2 C (19.0 F)
2009	-5.0 C (23.0 F)
2010	-7.2 C (19.0 F)

Wettest day (Rx1day)

The wettest day of the year at Buenos Aires, 1980 to 2010. The record is 76.5 mm (3.0 in) in 1993, marked on the chart; the median year is 35.8 mm (1.4 in).

Wettest day (Rx1day) at Buenos Aires by year
Year	Wettest day (Rx1day)
1980	20.8 mm (0.8 in)
1981	47.8 mm (1.9 in)
1982	25.9 mm (1.0 in)
1983	19.8 mm (0.8 in)
1984	35.8 mm (1.4 in)
1985	24.9 mm (1.0 in)
1986	37.8 mm (1.5 in)
1987	34.8 mm (1.4 in)
1988	19.8 mm (0.8 in)
1989	19.8 mm (0.8 in)
1990	22.9 mm (0.9 in)
1991	42.7 mm (1.7 in)
1992	28.4 mm (1.1 in)
1993	76.5 mm (3.0 in)
1994	30.0 mm (1.2 in)
1995	55.9 mm (2.2 in)
1996	31.0 mm (1.2 in)
1997	23.9 mm (0.9 in)
1998	42.9 mm (1.7 in)
1999	48.8 mm (1.9 in)
2000	37.8 mm (1.5 in)
2001	19.8 mm (0.8 in)
2002	30.0 mm (1.2 in)
2003	36.8 mm (1.4 in)
2004	27.9 mm (1.1 in)
2005	48.3 mm (1.9 in)
2006	37.8 mm (1.5 in)
2007	49.8 mm (2.0 in)
2008	64.8 mm (2.6 in)
2009	37.3 mm (1.5 in)
2010	72.9 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Buenos Aires, 1980 to 2010. The record is 172.0 mm (6.8 in) in 2010, marked on the chart; the median year is 68.1 mm (2.7 in).

Wettest five days (Rx5day) at Buenos Aires by year
Year	Wettest five days (Rx5day)
1980	20.8 mm (0.8 in)
1981	56.4 mm (2.2 in)
1982	70.0 mm (2.8 in)
1983	68.1 mm (2.7 in)
1984	66.9 mm (2.6 in)
1985	43.5 mm (1.7 in)
1986	85.4 mm (3.4 in)
1987	81.8 mm (3.2 in)
1988	43.2 mm (1.7 in)
1989	33.3 mm (1.3 in)
1990	56.1 mm (2.2 in)
1991	62.8 mm (2.5 in)
1992	48.8 mm (1.9 in)
1993	82.1 mm (3.2 in)
1994	45.2 mm (1.8 in)
1995	106.4 mm (4.2 in)
1996	31.0 mm (1.2 in)
1997	62.6 mm (2.5 in)
1998	80.3 mm (3.2 in)
1999	94.6 mm (3.7 in)
2000	63.5 mm (2.5 in)
2001	51.4 mm (2.0 in)
2002	87.7 mm (3.5 in)
2003	68.0 mm (2.7 in)
2004	84.3 mm (3.3 in)
2005	127.6 mm (5.0 in)
2006	83.2 mm (3.3 in)
2007	105.4 mm (4.1 in)
2008	110.8 mm (4.4 in)
2009	89.4 mm (3.5 in)
2010	172.0 mm (6.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Buenos Aires, 1980 to 2010. The record is 156 days in 1993, marked on the chart; the median year is 51 days.

Longest dry spell (CDD) at Buenos Aires by year
Year	Longest dry spell (CDD)
1980	39 days
1981	31 days
1982	63 days
1983	56 days
1984	57 days
1985	46 days
1986	98 days
1987	49 days
1988	42 days
1989	33 days
1990	42 days
1991	117 days
1992	76 days
1993	156 days
1994	53 days
1995	51 days
1996	122 days
1997	40 days
1998	61 days
1999	60 days
2000	30 days
2001	46 days
2002	98 days
2003	95 days
2004	20 days
2005	51 days
2006	83 days
2007	43 days
2008	82 days
2009	45 days
2010	41 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 Buenos Aires standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Buenos Aires 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).