San Diego Weather Records (MXN00010122)

Record envelope, standing records and threshold days for San Diego (MXN00010122), Mexico, with 40 years of record.

Key Facts for San Diego

San Diego (MXN00010122) is a weather station in Mexico at 24.88 latitude and -106.12 longitude, 1,640 m (5,380 ft) above sea level.
The station reports from 1973 to 2012, 40 years of record.
1,464 records set at San Diego still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
San Diego tied a daily record low maximum temperature of 22.8 C (73.0 F) on 11 May 2012.

About the Station

Location: Mexico, 24.88 latitude, -106.12 longitude.
Elevation: 1,640 m (5,380 ft).
Period of record: 1973 to 2012, 40 years.
Eligible elements: tmax, tmin, prcp.

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	30.0 C (86.0 F)	-2.2 C (28.0 F)	n/a	n/a
Feb	31.1 C (88.0 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
May	38.3 C (100.9 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Jul	35.6 C (96.1 F)	7.8 C (46.0 F)	n/a	n/a
Aug	35.6 C (96.1 F)	8.9 C (48.0 F)	n/a	n/a
Sep	32.8 C (91.0 F)	7.2 C (45.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	0.0 C (32.0 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-5.0 C (23.0 F)	n/a	n/a
Dec	32.8 C (91.0 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. 1997 holds the most, with 111.

Standing records at San Diego by the year they were set
Year set	Standing records
1973	99
1974	63
1975	63
1976	44
1977	62
1978	10
1979	25
1980	64
1981	27
1982	44
1983	36
1984	2
1985	30
1986	22
1987	26
1988	19
1989	20
1990	7
1991	17
1992	4
1993	11
1994	20
1995	42
1996	79
1997	111
1998	63
1999	52
2000	69
2001	44
2002	44
2003	25
2004	49
2005	25
2006	20
2007	31
2008	17
2009	25
2010	36
2011	13
2012	4

All-Time Record Progression

2 new records

2 all-time records were set at San Diego between 10 February 2010 and 11 February 2010. Each dot is a new record.

When San Diego set new all-time records
Date	Kind	Detail
2010-02-10	Record low maximum temperature	Record low maximum temperature 5.0 C (41.0 F)
2010-02-11	Record low minimum temperature	Record low minimum temperature -5.0 C (23.0 F)

Wettest Day of Each Month

Apr: 95.8 mm (3.8 in)

The wettest day on record for each calendar month at San Diego. The most was 95.8 mm (3.8 in) on 2 April 1997.

Record daily precipitation for each month at San Diego
Month	Record daily precipitation (mm)	Date
Jan	71.9 mm (2.8 in)	24 January 1979
Feb	45.0 mm (1.8 in)	28 February 2001
Mar	79.0 mm (3.1 in)	3 March 1983
Apr	95.8 mm (3.8 in)	2 April 1997
May	29.0 mm (1.1 in)	17 May 1992
Jun	56.4 mm (2.2 in)	5 June 1994
Jul	62.5 mm (2.5 in)	2 July 1991
Aug	69.9 mm (2.8 in)	28 August 1973
Sep	69.9 mm (2.8 in)	12 September 1993
Oct	65.8 mm (2.6 in)	24 October 2002
Nov	79.8 mm (3.1 in)	26 November 1982
Dec	62.2 mm (2.4 in)	23 December 1974

Period of Record Coverage

1973 to 2012

40 years of record at San Diego, 1973 to 2012. 21 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1976, 1977, 1978, 1979, 1981, 1984 and others.

Days with data per year at San Diego
Year	Days with data	Share of year	Complete
1973	208	57%	No
1974	196	54%	No
1975	364	100%	Yes
1976	303	83%	No
1977	236	65%	No
1978	172	47%	No
1979	92	25%	No
1980	336	92%	Yes
1981	304	83%	No
1982	335	92%	Yes
1983	334	92%	Yes
1984	31	8%	No
1985	334	92%	Yes
1986	242	66%	No
1987	362	99%	Yes
1988	366	100%	Yes
1989	333	91%	Yes
1990	242	66%	No
1991	334	92%	Yes
1992	182	50%	No
1993	354	97%	Yes
1994	334	92%	Yes
1995	330	90%	Yes
1996	330	90%	Yes
1997	332	91%	Yes
1998	327	90%	No
1999	313	86%	No
2000	318	87%	No
2001	284	78%	No
2002	338	93%	Yes
2003	352	96%	Yes
2004	356	97%	Yes
2005	292	80%	No
2006	316	87%	No
2007	351	96%	Yes
2008	261	71%	No
2009	335	92%	Yes
2010	301	82%	No
2011	312	85%	No
2012	145	40%	No

Latest Records

Latest records at San Diego
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 2012	San Diego, MX	daily low max (Tie)	22.8 C (73.0 F)	tie	38 years	3 of 100 (Routine)
10 May 2012	San Diego, MX	daily low max	21.7 C (71.1 F)	2.2 C (4.0 F)	38 years	21 of 100 (Routine)
22 March 2012	San Diego, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	12 years	1 of 100 (Routine)
20 March 2012	San Diego, MX	daily low max	15.0 C (59.0 F)	1.1 C (2.0 F)	15 years	10 of 100 (Routine)
18 February 2012	San Diego, MX	daily low min	-2.2 C (28.0 F)	2.2 C (4.0 F)	13 years	13 of 100 (Routine)
16 February 2012	San Diego, MX	daily rain	6.9 mm (0.27 in)	6.1 mm (0.24 in)	21 years	15 of 100 (Routine)
12 February 2012	San Diego, MX	daily low max	8.9 C (48.0 F)	2.8 C (5.0 F)	14 years	14 of 100 (Routine)
23 December 2011	San Diego, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	12 years	1 of 100 (Routine)
22 December 2011	San Diego, MX	all-time low min (Tie)	-5.0 C (23.0 F)	tie	1 year	5 of 100 (Routine)
6 December 2011	San Diego, MX	daily low min	1.1 C (34.0 F)	0.6 C (1.1 F)	12 years	7 of 100 (Routine)
4 December 2011	San Diego, MX	daily low max (Tie)	13.3 C (55.9 F)	tie	28 years	2 of 100 (Routine)
3 December 2011	San Diego, MX	monthly low max (Tie)	7.8 C (46.0 F)	tie	15 years	4 of 100 (Routine)
28 November 2011	San Diego, MX	daily low min	-3.3 C (26.1 F)	5.5 C (9.9 F)	5 years	17 of 100 (Routine)
27 November 2011	San Diego, MX	all-time low min (Tie)	-5.0 C (23.0 F)	tie	1 year	5 of 100 (Routine)
25 November 2011	San Diego, MX	daily rain	24.9 mm (1.0 in)	6.1 mm (0.24 in)	28 years	14 of 100 (Routine)
24 November 2011	San Diego, MX	daily low max	15.0 C (59.0 F)	0.6 C (1.1 F)	4 years	5 of 100 (Routine)
13 November 2011	San Diego, MX	monthly low max	8.9 C (48.0 F)	0.5 C (0.9 F)	2 years	14 of 100 (Routine)
9 October 2011	San Diego, MX	daily low min	7.8 C (46.0 F)	1.1 C (2.0 F)	12 years	9 of 100 (Routine)
1 October 2011	San Diego, MX	daily rain	17.8 mm (0.7 in)	4.8 mm (0.19 in)	1 year	6 of 100 (Routine)
10 September 2011	San Diego, MX	daily low min (Tie)	10.0 C (50.0 F)	tie	12 years	1 of 100 (Routine)

Extremes by Year

1973 to 2012

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)	38.3 C (100.9 F)	1985	34.2 C (93.5 F)	40
Coldest night (TNn)	-5.0 C (23.0 F)	2010	1.7 C (35.1 F)	40
Wettest day (Rx1day)	95.8 mm (3.8 in)	1997	54.4 mm (2.1 in)	40
Wettest five days (Rx5day)	282.0 mm (11.1 in)	1979	91.8 mm (3.6 in)	40
Longest dry spell (CDD)	151 days	1999	57 days	40

Hottest day (TXx)

The hottest day of the year at San Diego, 1973 to 2012. The record is 38.3 C (100.9 F) in 1985, marked on the chart; the median year is 34.2 C (93.5 F).

Hottest day (TXx) at San Diego by year
Year	Hottest day (TXx)
1973	35.6 C (96.1 F)
1974	35.6 C (96.1 F)
1975	35.0 C (95.0 F)
1976	35.0 C (95.0 F)
1977	35.6 C (96.1 F)
1978	35.0 C (95.0 F)
1979	34.4 C (93.9 F)
1980	37.8 C (100.0 F)
1981	32.2 C (90.0 F)
1982	33.3 C (91.9 F)
1983	35.6 C (96.1 F)
1984	28.9 C (84.0 F)
1985	38.3 C (100.9 F)
1986	33.9 C (93.0 F)
1987	35.0 C (95.0 F)
1988	34.4 C (93.9 F)
1989	35.0 C (95.0 F)
1990	33.3 C (91.9 F)
1991	35.0 C (95.0 F)
1992	32.8 C (91.0 F)
1993	33.3 C (91.9 F)
1994	30.0 C (86.0 F)
1995	27.2 C (81.0 F)
1996	30.0 C (86.0 F)
1997	31.7 C (89.1 F)
1998	37.8 C (100.0 F)
1999	35.0 C (95.0 F)
2000	35.0 C (95.0 F)
2001	37.8 C (100.0 F)
2002	35.6 C (96.1 F)
2003	34.4 C (93.9 F)
2004	32.2 C (90.0 F)
2005	31.7 C (89.1 F)
2006	33.9 C (93.0 F)
2007	32.2 C (90.0 F)
2008	30.6 C (87.1 F)
2009	31.7 C (89.1 F)
2010	32.8 C (91.0 F)
2011	33.9 C (93.0 F)
2012	32.8 C (91.0 F)

Coldest night (TNn)

The coldest night of the year at San Diego, 1973 to 2012. The record is -5.0 C (23.0 F) in 2010, marked on the chart; the median year is 1.7 C (35.1 F).

Coldest night (TNn) at San Diego by year
Year	Coldest night (TNn)
1973	2.8 C (37.0 F)
1974	0.6 C (33.1 F)
1975	0.6 C (33.1 F)
1976	5.0 C (41.0 F)
1977	5.0 C (41.0 F)
1978	4.4 C (39.9 F)
1979	8.3 C (46.9 F)
1980	5.6 C (42.1 F)
1981	3.9 C (39.0 F)
1982	2.8 C (37.0 F)
1983	3.3 C (37.9 F)
1984	5.0 C (41.0 F)
1985	3.9 C (39.0 F)
1986	2.8 C (37.0 F)
1987	0.6 C (33.1 F)
1988	3.3 C (37.9 F)
1989	5.0 C (41.0 F)
1990	3.9 C (39.0 F)
1991	3.9 C (39.0 F)
1992	0.6 C (33.1 F)
1993	5.0 C (41.0 F)
1994	3.9 C (39.0 F)
1995	3.9 C (39.0 F)
1996	5.0 C (41.0 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	-1.7 C (28.9 F)
2003	-3.3 C (26.1 F)
2004	-0.6 C (30.9 F)
2005	0.0 C (32.0 F)
2006	0.0 C (32.0 F)
2007	0.0 C (32.0 F)
2008	0.0 C (32.0 F)
2009	-1.7 C (28.9 F)
2010	-5.0 C (23.0 F)
2011	-5.0 C (23.0 F)
2012	-2.2 C (28.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Diego, 1973 to 2012. The record is 95.8 mm (3.8 in) in 1997, marked on the chart; the median year is 54.4 mm (2.1 in).

Wettest day (Rx1day) at San Diego by year
Year	Wettest day (Rx1day)
1973	69.9 mm (2.8 in)
1974	62.2 mm (2.4 in)
1975	35.3 mm (1.4 in)
1976	55.9 mm (2.2 in)
1977	54.4 mm (2.1 in)
1978	57.2 mm (2.3 in)
1979	71.9 mm (2.8 in)
1980	61.0 mm (2.4 in)
1981	46.0 mm (1.8 in)
1982	79.8 mm (3.1 in)
1983	79.0 mm (3.1 in)
1984	44.7 mm (1.8 in)
1985	35.8 mm (1.4 in)
1986	47.0 mm (1.9 in)
1987	43.9 mm (1.7 in)
1988	47.0 mm (1.9 in)
1989	58.9 mm (2.3 in)
1990	42.9 mm (1.7 in)
1991	62.5 mm (2.5 in)
1992	48.3 mm (1.9 in)
1993	69.9 mm (2.8 in)
1994	56.4 mm (2.2 in)
1995	41.9 mm (1.6 in)
1996	46.0 mm (1.8 in)
1997	95.8 mm (3.8 in)
1998	27.9 mm (1.1 in)
1999	49.8 mm (2.0 in)
2000	43.9 mm (1.7 in)
2001	45.0 mm (1.8 in)
2002	75.9 mm (3.0 in)
2003	57.9 mm (2.3 in)
2004	54.4 mm (2.1 in)
2005	54.4 mm (2.1 in)
2006	45.0 mm (1.8 in)
2007	64.8 mm (2.6 in)
2008	31.5 mm (1.2 in)
2009	64.8 mm (2.6 in)
2010	54.9 mm (2.2 in)
2011	29.0 mm (1.1 in)
2012	6.9 mm (0.27 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Diego, 1973 to 2012. The record is 282.0 mm (11.1 in) in 1979, marked on the chart; the median year is 91.8 mm (3.6 in).

Wettest five days (Rx5day) at San Diego by year
Year	Wettest five days (Rx5day)
1973	101.9 mm (4.0 in)
1974	113.3 mm (4.5 in)
1975	81.9 mm (3.2 in)
1976	82.2 mm (3.2 in)
1977	70.4 mm (2.8 in)
1978	83.2 mm (3.3 in)
1979	282.0 mm (11.1 in)
1980	102.6 mm (4.0 in)
1981	86.3 mm (3.4 in)
1982	100.6 mm (4.0 in)
1983	122.4 mm (4.8 in)
1984	78.5 mm (3.1 in)
1985	75.5 mm (3.0 in)
1986	75.2 mm (3.0 in)
1987	117.6 mm (4.6 in)
1988	130.0 mm (5.1 in)
1989	84.9 mm (3.3 in)
1990	70.6 mm (2.8 in)
1991	137.5 mm (5.4 in)
1992	72.2 mm (2.8 in)
1993	123.9 mm (4.9 in)
1994	90.4 mm (3.6 in)
1995	82.9 mm (3.3 in)
1996	71.7 mm (2.8 in)
1997	194.8 mm (7.7 in)
1998	62.2 mm (2.4 in)
1999	100.1 mm (3.9 in)
2000	92.0 mm (3.6 in)
2001	91.8 mm (3.6 in)
2002	91.7 mm (3.6 in)
2003	122.9 mm (4.8 in)
2004	184.7 mm (7.3 in)
2005	104.5 mm (4.1 in)
2006	95.1 mm (3.7 in)
2007	89.5 mm (3.5 in)
2008	74.7 mm (2.9 in)
2009	112.3 mm (4.4 in)
2010	136.2 mm (5.4 in)
2011	49.8 mm (2.0 in)
2012	10.5 mm (0.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Diego, 1973 to 2012. The record is 151 days in 1999, marked on the chart; the median year is 57 days.

Longest dry spell (CDD) at San Diego by year
Year	Longest dry spell (CDD)
1973	29 days
1974	58 days
1975	79 days
1976	52 days
1977	60 days
1978	19 days
1979	70 days
1980	36 days
1981	33 days
1982	91 days
1983	30 days
1984	13 days
1985	60 days
1986	32 days
1987	55 days
1988	94 days
1989	58 days
1990	78 days
1991	98 days
1992	28 days
1993	56 days
1994	55 days
1995	119 days
1996	119 days
1997	55 days
1998	47 days
1999	151 days
2000	71 days
2001	59 days
2002	47 days
2003	40 days
2004	31 days
2005	70 days
2006	50 days
2007	62 days
2008	60 days
2009	69 days
2010	38 days
2011	125 days
2012	36 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).