San Diego Brown Fld Weather Records (USW00003178)

Record envelope, standing records and threshold days for San Diego Brown Fld (USW00003178), California, United States, with 30 years of record.

Key Facts for San Diego Brown Fld

San Diego Brown Fld (USW00003178) is a weather station in California, United States at 32.58 latitude and -116.99 longitude, 159 m (521 ft) above sea level.
The station reports from 1997 to 2026, 30 years of record.
1,464 records set at San Diego Brown Fld still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: California, United States, 32.58 latitude, -116.99 longitude.
Elevation: 159 m (521 ft).
Period of record: 1997 to 2026, 30 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

23 days at or beyond a record

The band shows the record high and record low for each calendar day at San Diego Brown Fld. The lines show the 2026 daily maximum and minimum. 23 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at San Diego Brown Fld, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.2 C (90.0 F)	-2.7 C (27.1 F)	29.4 C (84.9 F)	1.7 C (35.1 F)
Feb	33.9 C (93.0 F)	0.0 C (32.0 F)	23.3 C (73.9 F)	5.0 C (41.0 F)
Mar	36.1 C (97.0 F)	1.7 C (35.1 F)	20.6 C (69.1 F)	12.8 C (55.0 F)
Apr	37.2 C (99.0 F)	1.1 C (34.0 F)	22.2 C (72.0 F)	7.8 C (46.0 F)
May	38.9 C (102.0 F)	5.0 C (41.0 F)	33.3 C (91.9 F)	8.9 C (48.0 F)
Jun	39.4 C (102.9 F)	6.7 C (44.1 F)	32.8 C (91.0 F)	12.2 C (54.0 F)
Jul	43.3 C (109.9 F)	11.7 C (53.1 F)	27.2 C (81.0 F)	13.3 C (55.9 F)
Aug	38.9 C (102.0 F)	11.1 C (52.0 F)	36.1 C (97.0 F)	13.9 C (57.0 F)
Sep	42.2 C (108.0 F)	8.9 C (48.0 F)	32.8 C (91.0 F)	13.9 C (57.0 F)
Oct	39.4 C (102.9 F)	3.3 C (37.9 F)	35.0 C (95.0 F)	8.3 C (46.9 F)
Nov	37.2 C (99.0 F)	0.0 C (32.0 F)	31.7 C (89.1 F)	5.6 C (42.1 F)
Dec	30.6 C (87.1 F)	-0.5 C (31.1 F)	30.0 C (86.0 F)	3.9 C (39.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Diego Brown Fld still stand. 1999 holds the most, with 93.

Standing records at San Diego Brown Fld by the year they were set
Year set	Standing records
1997	58
1998	52
1999	93
2000	70
2001	57
2002	64
2003	41
2004	55
2005	43
2006	93
2007	42
2008	58
2009	37
2010	91
2011	44
2012	38
2013	45
2014	47
2015	60
2016	51
2017	43
2018	62
2019	31
2020	53
2021	31
2022	30
2023	34
2024	21
2025	20

Wettest Day of Each Month

Feb: 59.9 mm (2.4 in)

The wettest day on record for each calendar month at San Diego Brown Fld. The most was 59.9 mm (2.4 in) on 22 February 2004.

Record daily precipitation for each month at San Diego Brown Fld
Month	Record daily precipitation (mm)	Date
Jan	50.8 mm (2.0 in)	22 January 2024
Feb	59.9 mm (2.4 in)	22 February 2004
Mar	31.2 mm (1.2 in)	13 March 2025
Apr	38.4 mm (1.5 in)	10 April 2020
May	31.8 mm (1.3 in)	7 May 2017
Jun	7.9 mm (0.31 in)	4 June 2011
Jul	2.5 mm (0.10 in)	31 July 2006
Aug	35.8 mm (1.4 in)	20 August 2023
Sep	20.6 mm (0.8 in)	15 September 2015
Oct	39.6 mm (1.6 in)	27 October 2004
Nov	55.1 mm (2.2 in)	8 November 2022
Dec	48.8 mm (1.9 in)	7 December 2009

Period of Record Coverage

1997 to 2025

29 years of record at San Diego Brown Fld, 1997 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 1997, 2025.

Days with data per year at San Diego Brown Fld
Year	Days with data	Share of year	Complete
1997	326	89%	No
1998	364	100%	Yes
1999	365	100%	Yes
2000	362	99%	Yes
2001	365	100%	Yes
2002	363	99%	Yes
2003	362	99%	Yes
2004	359	98%	Yes
2005	365	100%	Yes
2006	363	99%	Yes
2007	364	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	364	100%	Yes
2012	364	99%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	363	99%	Yes
2016	366	100%	Yes
2017	364	100%	Yes
2018	361	99%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	363	99%	Yes
2025	290	79%	No

Latest Records

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

Climate Trend

27 complete years, 1998 to 2024

One stripe for each of 27 complete years at San Diego Brown Fld, 1998 to 2024. Blue stripes are years cooler than the station's own mean of 17.1 C (62.8 F); red stripes are warmer. The coolest year was 1999, at 15.8 C (60.4 F), and the warmest was 2014, at 18.7 C (65.6 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at San Diego Brown Fld as warming stripes, 1998 to 2024
Year	Annual mean temperature	Difference from the station mean
1998	16.2 C	-0.89 C
1999	15.8 C	-1.30 C
2000	16.6 C	-0.47 C
2001	16.0 C	-1.11 C
2002	16.0 C	-1.08 C
2003	16.8 C	-0.27 C
2004	16.8 C	-0.35 C
2005	17.6 C	+0.45 C
2006	17.8 C	+0.72 C
2007	16.6 C	-0.49 C
2008	17.4 C	+0.26 C
2009	17.1 C	-0.01 C
2010	16.0 C	-1.10 C
2011	16.0 C	-1.10 C
2012	17.0 C	-0.12 C
2013	17.0 C	-0.14 C
2014	18.7 C	+1.56 C
2015	18.5 C	+1.39 C
2016	18.1 C	+0.98 C
2017	18.0 C	+0.89 C
2018	18.1 C	+0.99 C
2019	16.8 C	-0.31 C
2020	17.9 C	+0.78 C
2021	17.6 C	+0.49 C
2022	17.8 C	+0.70 C
2023	16.6 C	-0.50 C
2024	17.2 C	+0.08 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

1997 to 2026

Yearly extremes at San Diego Brown Fld: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	2006	37.8 C (100.0 F)	30
Coldest night (TNn)	-2.7 C (27.1 F)	2007	0.6 C (33.1 F)	30
Wettest day (Rx1day)	59.9 mm (2.4 in)	2004	32.8 mm (1.3 in)	29
Wettest five days (Rx5day)	84.4 mm (3.3 in)	2010	52.6 mm (2.1 in)	29
Longest dry spell (CDD)	230 days	2009	117 days	29

Hottest day (TXx)

The hottest day of the year at San Diego Brown Fld, 1997 to 2026. The record is 43.3 C (109.9 F) in 2006, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at San Diego Brown Fld by year
Year	Hottest day (TXx)
1997	40.0 C (104.0 F)
1998	36.7 C (98.1 F)
1999	37.2 C (99.0 F)
2000	35.6 C (96.1 F)
2001	33.9 C (93.0 F)
2002	35.6 C (96.1 F)
2003	34.4 C (93.9 F)
2004	39.4 C (102.9 F)
2005	37.2 C (99.0 F)
2006	43.3 C (109.9 F)
2007	37.8 C (100.0 F)
2008	36.7 C (98.1 F)
2009	38.9 C (102.0 F)
2010	42.2 C (108.0 F)
2011	38.3 C (100.9 F)
2012	41.1 C (106.0 F)
2013	36.1 C (97.0 F)
2014	38.9 C (102.0 F)
2015	38.9 C (102.0 F)
2016	37.2 C (99.0 F)
2017	39.4 C (102.9 F)
2018	38.9 C (102.0 F)
2019	36.7 C (98.1 F)
2020	40.6 C (105.1 F)
2021	36.1 C (97.0 F)
2022	37.8 C (100.0 F)
2023	33.3 C (91.9 F)
2024	40.0 C (104.0 F)
2025	36.1 C (97.0 F)
2026	40.6 C (105.1 F)

Coldest night (TNn)

The coldest night of the year at San Diego Brown Fld, 1997 to 2026. The record is -2.7 C (27.1 F) in 2007, marked on the chart; the median year is 0.6 C (33.1 F).

Coldest night (TNn) at San Diego Brown Fld by year
Year	Coldest night (TNn)
1997	0.6 C (33.1 F)
1998	0.0 C (32.0 F)
1999	1.1 C (34.0 F)
2000	0.6 C (33.1 F)
2001	0.0 C (32.0 F)
2002	0.0 C (32.0 F)
2003	0.6 C (33.1 F)
2004	0.0 C (32.0 F)
2005	3.3 C (37.9 F)
2006	1.1 C (34.0 F)
2007	-2.7 C (27.1 F)
2008	1.1 C (34.0 F)
2009	1.1 C (34.0 F)
2010	1.1 C (34.0 F)
2011	-0.5 C (31.1 F)
2012	1.7 C (35.1 F)
2013	-1.0 C (30.2 F)
2014	1.7 C (35.1 F)
2015	0.0 C (32.0 F)
2016	1.7 C (35.1 F)
2017	1.1 C (34.0 F)
2018	0.6 C (33.1 F)
2019	-1.0 C (30.2 F)
2020	0.0 C (32.0 F)
2021	1.7 C (35.1 F)
2022	1.1 C (34.0 F)
2023	0.6 C (33.1 F)
2024	0.6 C (33.1 F)
2025	1.7 C (35.1 F)
2026	2.2 C (36.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Diego Brown Fld, 1997 to 2026. The record is 59.9 mm (2.4 in) in 2004, marked on the chart; the median year is 32.8 mm (1.3 in).

Wettest day (Rx1day) at San Diego Brown Fld by year
Year	Wettest day (Rx1day)
1997	n/a
1998	12.7 mm (0.5 in)
1999	22.4 mm (0.9 in)
2000	44.7 mm (1.8 in)
2001	29.2 mm (1.1 in)
2002	8.1 mm (0.32 in)
2003	33.3 mm (1.3 in)
2004	59.9 mm (2.4 in)
2005	26.7 mm (1.1 in)
2006	16.5 mm (0.6 in)
2007	39.6 mm (1.6 in)
2008	43.2 mm (1.7 in)
2009	48.8 mm (1.9 in)
2010	40.9 mm (1.6 in)
2011	30.0 mm (1.2 in)
2012	44.2 mm (1.7 in)
2013	28.2 mm (1.1 in)
2014	22.6 mm (0.9 in)
2015	22.9 mm (0.9 in)
2016	24.9 mm (1.0 in)
2017	56.1 mm (2.2 in)
2018	32.8 mm (1.3 in)
2019	42.9 mm (1.7 in)
2020	38.4 mm (1.5 in)
2021	28.2 mm (1.1 in)
2022	55.1 mm (2.2 in)
2023	35.8 mm (1.4 in)
2024	50.8 mm (2.0 in)
2025	31.2 mm (1.2 in)
2026	31.0 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Diego Brown Fld, 1997 to 2026. The record is 84.4 mm (3.3 in) in 2010, marked on the chart; the median year is 52.6 mm (2.1 in).

Wettest five days (Rx5day) at San Diego Brown Fld by year
Year	Wettest five days (Rx5day)
1997	n/a
1998	25.7 mm (1.0 in)
1999	41.0 mm (1.6 in)
2000	64.5 mm (2.5 in)
2001	53.3 mm (2.1 in)
2002	9.7 mm (0.38 in)
2003	40.9 mm (1.6 in)
2004	74.1 mm (2.9 in)
2005	59.7 mm (2.4 in)
2006	27.5 mm (1.1 in)
2007	51.8 mm (2.0 in)
2008	79.2 mm (3.1 in)
2009	52.6 mm (2.1 in)
2010	84.4 mm (3.3 in)
2011	45.7 mm (1.8 in)
2012	48.0 mm (1.9 in)
2013	36.9 mm (1.5 in)
2014	32.0 mm (1.3 in)
2015	38.2 mm (1.5 in)
2016	55.7 mm (2.2 in)
2017	59.4 mm (2.3 in)
2018	42.7 mm (1.7 in)
2019	74.4 mm (2.9 in)
2020	82.9 mm (3.3 in)
2021	36.5 mm (1.4 in)
2022	57.9 mm (2.3 in)
2023	77.4 mm (3.0 in)
2024	74.6 mm (2.9 in)
2025	45.5 mm (1.8 in)
2026	52.9 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Diego Brown Fld, 1997 to 2026. The record is 230 days in 2009, marked on the chart; the median year is 117 days.

Longest dry spell (CDD) at San Diego Brown Fld by year
Year	Longest dry spell (CDD)
1997	n/a
1998	61 days
1999	78 days
2000	37 days
2001	196 days
2002	74 days
2003	128 days
2004	148 days
2005	85 days
2006	73 days
2007	152 days
2008	133 days
2009	230 days
2010	154 days
2011	91 days
2012	136 days
2013	155 days
2014	109 days
2015	57 days
2016	135 days
2017	123 days
2018	85 days
2019	100 days
2020	117 days
2021	144 days
2022	139 days
2023	69 days
2024	137 days
2025	101 days
2026	93 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 Brown Fld standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Diego Brown Fld 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).