San Diego Weather Records (MXN00019101)

Record envelope, standing records and threshold days for San Diego (MXN00019101), Mexico, with 35 years of record.

Key Facts for San Diego

San Diego (MXN00019101) is a weather station in Mexico at 25.22 latitude and -99.25 longitude, 180 m (590 ft) above sea level.
The station reports from 1977 to 2011, 35 years of record.
1,464 records set at San Diego still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 25.22 latitude, -99.25 longitude.
Elevation: 180 m (590 ft).
Period of record: 1977 to 2011, 35 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 San Diego. 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 San Diego, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.6 C (96.1 F)	-4.4 C (24.1 F)	n/a	n/a
Feb	40.0 C (104.0 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	42.8 C (109.0 F)	1.7 C (35.1 F)	n/a	n/a
Apr	43.9 C (111.0 F)	7.8 C (46.0 F)	n/a	n/a
May	45.6 C (114.1 F)	10.0 C (50.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	45.0 C (113.0 F)	10.0 C (50.0 F)	n/a	n/a
Aug	43.9 C (111.0 F)	10.0 C (50.0 F)	n/a	n/a
Sep	42.8 C (109.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	40.0 C (104.0 F)	1.7 C (35.1 F)	n/a	n/a
Nov	37.8 C (100.0 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	35.0 C (95.0 F)	-5.0 C (23.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Diego still stand. 2008 holds the most, with 119.

Standing records at San Diego by the year they were set
Year set	Standing records
1979	93
1980	69
1981	41
1982	44
1983	54
1984	18
1985	86
1986	18
1997	58
1998	60
1999	102
2000	105
2001	74
2002	74
2003	51
2004	50
2005	56
2006	49
2008	119
2009	65
2010	112
2011	66

Wettest Day of Each Month

Jul: 274.8 mm (10.8 in)

The wettest day on record for each calendar month at San Diego. The most was 274.8 mm (10.8 in) on 1 July 2010.

Record daily precipitation for each month at San Diego
Month	Record daily precipitation (mm)	Date
Jan	59.9 mm (2.4 in)	29 January 1984
Feb	22.9 mm (0.9 in)	24 February 2005
Mar	37.8 mm (1.5 in)	7 March 2005
Apr	99.8 mm (3.9 in)	15 April 1981
May	137.9 mm (5.4 in)	15 May 1984
Jun	99.8 mm (3.9 in)	6 June 1981
Jul	274.8 mm (10.8 in)	1 July 2010
Aug	90.4 mm (3.6 in)	21 August 1981
Sep	164.8 mm (6.5 in)	8 September 2001
Oct	85.9 mm (3.4 in)	24 October 1980
Nov	58.9 mm (2.3 in)	20 November 2008
Dec	74.9 mm (2.9 in)	19 December 1983

Period of Record Coverage

1979 to 2011

22 years of record at San Diego, 1979 to 2011. 12 years have data for under 90 percent of days and are left out of rankings: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986 and others.

Days with data per year at San Diego
Year	Days with data	Share of year	Complete
1979	316	87%	No
1980	151	41%	No
1981	303	83%	No
1982	181	50%	No
1983	231	63%	No
1984	60	16%	No
1985	280	77%	No
1986	117	32%	No
1997	183	50%	No
1998	243	67%	No
1999	360	99%	Yes
2000	366	100%	Yes
2001	351	96%	Yes
2002	357	98%	Yes
2003	242	66%	No
2004	366	100%	Yes
2005	365	100%	Yes
2006	243	67%	No
2008	364	99%	Yes
2009	330	90%	Yes
2010	363	99%	Yes
2011	360	99%	Yes

Latest Records

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

Extremes by Year

1977 to 2011

Yearly extremes at San Diego: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	2002	42.3 C (108.1 F)	22
Coldest night (TNn)	-5.0 C (23.0 F)	1997	0.0 C (32.0 F)	22
Wettest day (Rx1day)	274.8 mm (10.8 in)	2010	70.4 mm (2.8 in)	24
Wettest five days (Rx5day)	386.6 mm (15.2 in)	2010	104.5 mm (4.1 in)	24
Longest dry spell (CDD)	152 days	2000	55 days	24

Hottest day (TXx)

The hottest day of the year at San Diego, 1977 to 2011. The record is 45.6 C (114.1 F) in 2002, marked on the chart; the median year is 42.3 C (108.1 F).

Hottest day (TXx) at San Diego by year
Year	Hottest day (TXx)
1977	n/a
1978	n/a
1979	40.6 C (105.1 F)
1980	38.9 C (102.0 F)
1981	40.6 C (105.1 F)
1982	40.6 C (105.1 F)
1983	40.6 C (105.1 F)
1984	27.8 C (82.0 F)
1985	40.0 C (104.0 F)
1986	38.9 C (102.0 F)
1997	43.9 C (111.0 F)
1998	45.0 C (113.0 F)
1999	43.9 C (111.0 F)
2000	45.0 C (113.0 F)
2001	45.0 C (113.0 F)
2002	45.6 C (114.1 F)
2003	45.6 C (114.1 F)
2004	41.7 C (107.1 F)
2005	42.8 C (109.0 F)
2006	42.8 C (109.0 F)
2008	42.8 C (109.0 F)
2009	41.7 C (107.1 F)
2010	40.0 C (104.0 F)
2011	45.0 C (113.0 F)

Coldest night (TNn)

The coldest night of the year at San Diego, 1977 to 2011. The record is -5.0 C (23.0 F) in 1997, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at San Diego by year
Year	Coldest night (TNn)
1977	n/a
1978	n/a
1979	0.0 C (32.0 F)
1980	0.6 C (33.1 F)
1981	0.0 C (32.0 F)
1982	-2.8 C (27.0 F)
1983	1.1 C (34.0 F)
1984	5.0 C (41.0 F)
1985	-4.4 C (24.1 F)
1986	3.9 C (39.0 F)
1997	-5.0 C (23.0 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	1.7 C (35.1 F)
2003	0.0 C (32.0 F)
2004	-2.2 C (28.0 F)
2005	3.9 C (39.0 F)
2006	0.6 C (33.1 F)
2008	-4.4 C (24.1 F)
2009	5.6 C (42.1 F)
2010	0.0 C (32.0 F)
2011	-3.3 C (26.1 F)

Wettest day (Rx1day)

The wettest day of the year at San Diego, 1977 to 2011. The record is 274.8 mm (10.8 in) in 2010, marked on the chart; the median year is 70.4 mm (2.8 in).

Wettest day (Rx1day) at San Diego by year
Year	Wettest day (Rx1day)
1977	6.1 mm (0.24 in)
1978	79.8 mm (3.1 in)
1979	65.8 mm (2.6 in)
1980	134.9 mm (5.3 in)
1981	99.8 mm (3.9 in)
1982	42.9 mm (1.7 in)
1983	74.9 mm (2.9 in)
1984	137.9 mm (5.4 in)
1985	65.8 mm (2.6 in)
1986	35.8 mm (1.4 in)
1997	13.5 mm (0.5 in)
1998	20.8 mm (0.8 in)
1999	20.6 mm (0.8 in)
2000	20.3 mm (0.8 in)
2001	164.8 mm (6.5 in)
2002	114.8 mm (4.5 in)
2003	95.8 mm (3.8 in)
2004	20.6 mm (0.8 in)
2005	170.2 mm (6.7 in)
2006	53.8 mm (2.1 in)
2008	158.8 mm (6.3 in)
2009	79.8 mm (3.1 in)
2010	274.8 mm (10.8 in)
2011	34.8 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Diego, 1977 to 2011. The record is 386.6 mm (15.2 in) in 2010, marked on the chart; the median year is 104.5 mm (4.1 in).

Wettest five days (Rx5day) at San Diego by year
Year	Wettest five days (Rx5day)
1977	7.9 mm (0.31 in)
1978	141.3 mm (5.6 in)
1979	71.6 mm (2.8 in)
1980	150.6 mm (5.9 in)
1981	169.4 mm (6.7 in)
1982	55.6 mm (2.2 in)
1983	120.7 mm (4.8 in)
1984	137.9 mm (5.4 in)
1985	143.5 mm (5.6 in)
1986	48.5 mm (1.9 in)
1997	19.3 mm (0.8 in)
1998	68.8 mm (2.7 in)
1999	32.8 mm (1.3 in)
2000	27.7 mm (1.1 in)
2001	237.7 mm (9.4 in)
2002	255.8 mm (10.1 in)
2003	134.7 mm (5.3 in)
2004	88.2 mm (3.5 in)
2005	220.3 mm (8.7 in)
2006	70.6 mm (2.8 in)
2008	183.5 mm (7.2 in)
2009	86.1 mm (3.4 in)
2010	386.6 mm (15.2 in)
2011	38.6 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Diego, 1977 to 2011. The record is 152 days in 2000, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at San Diego by year
Year	Longest dry spell (CDD)
1977	46 days
1978	56 days
1979	73 days
1980	21 days
1981	43 days
1982	48 days
1983	29 days
1984	31 days
1985	82 days
1986	115 days
1997	60 days
1998	57 days
1999	83 days
2000	152 days
2001	52 days
2002	58 days
2003	45 days
2004	87 days
2005	45 days
2006	53 days
2008	47 days
2009	61 days
2010	79 days
2011	46 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 San Diego standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Diego 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 2026-10-16 (16 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).