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San Diego Wbo Weather Records (USC00047738)

Record envelope, standing records and threshold days for San Diego Wbo (USC00047738), California, United States, with 91 years of record.

Key Facts for San Diego Wbo

  • San Diego Wbo (USC00047738) is a weather station in California, United States at 32.72 latitude and -117.17 longitude, 8 m (26 ft) above sea level.
  • The station reports from 1850 to 1940, 91 years of record.
  • 1,464 records set at San Diego Wbo still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • San Diego Wbo set a daily record high minimum temperature of 13.9 C (57.0 F) on 10 January 1940.

About the Station

  • Location: California, United States, 32.72 latitude, -117.17 longitude.
  • Elevation: 8 m (26 ft).
  • Period of record: 1850 to 1940, 91 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at San Diego Wbo, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Diego Wbo. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -1001020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San Diego Wbo. 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 Wbo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan29.4 C (84.9 F)-3.9 C (25.0 F)n/an/a
Feb31.7 C (89.1 F)1.1 C (34.0 F)n/an/a
Mar37.2 C (99.0 F)2.2 C (36.0 F)n/an/a
Apr35.6 C (96.1 F)3.9 C (39.0 F)n/an/a
May36.7 C (98.1 F)7.2 C (45.0 F)n/an/a
Jun35.6 C (96.1 F)10.0 C (50.0 F)n/an/a
Jul37.8 C (100.0 F)12.2 C (54.0 F)n/an/a
Aug34.4 C (93.9 F)12.2 C (54.0 F)n/an/a
Sep43.3 C (109.9 F)10.0 C (50.0 F)n/an/a
Oct35.6 C (96.1 F)6.7 C (44.1 F)n/an/a
Nov33.9 C (93.0 F)2.2 C (36.0 F)n/an/a
Dec28.9 C (84.0 F)0.0 C (32.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Diego Wbo by the year they were set 1,464 records at San Diego Wbo still stand. 1931 holds the most, with 87. 02550751001874: 61875: 211876: 191877: 241878: 291879: 471880: 531881: 271882: 201883: 371884: 381885: 231886: 191887: 101888: 171889: 191890: 311891: 311892: 251893: 271894: 411895: 151896: 241897: 181898: 231899: 541900: 241901: 241902: 211903: 141904: 91905: 251906: 281907: 221908: 371909: 321910: 261911: 171912: 271913: 171914: 181915: 111916: 321917: 161918: 251919: 111920: 91921: 141922: 111923: 111924: 91925: 111926: 311927: 71928: 81929: 141930: 121931: 871932: 141933: 171934: 141935: 121936: 81937: 101938: 51939: 201940: 61874188118881895190219091916192319301937
1,464 records at San Diego Wbo still stand. 1931 holds the most, with 87.
Standing records at San Diego Wbo by the year they were set
Year setStanding records
18746
187521
187619
187724
187829
187947
188053
188127
188220
188337
188438
188523
188619
188710
188817
188919
189031
189131
189225
189327
189441
189515
189624
189718
189823
189954
190024
190124
190221
190314
19049
190525
190628
190722
190837
190932
191026
191117
191227
191317
191418
191511
191632
191716
191825
191911
19209
192114
192211
192311
19249
192511
192631
19277
19288
192914
193012
193187
193214
193317
193414
193512
19368
193710
19385
193920
19406

All-Time Record Progression

7 new records
When San Diego Wbo set new all-time records 7 all-time records were set at San Diego Wbo between 5 January 1913 and 21 September 1939. Each dot is a new record. Record low maximum temperatureRecord low minimum temperatureRecord high maximum temperatureRecord high minimum temperature5 January 1913: Record low maximum temperature 8.3 C (46.9 F)6 January 1913: Record low maximum temperature 7.2 C (45.0 F)6 January 1913: Record low minimum temperature -2.2 C (28.0 F)7 January 1913: Record low minimum temperature -3.9 C (25.0 F)17 September 1913: Record high maximum temperature 43.3 C (109.9 F)20 September 1939: Record high minimum temperature 24.4 C (75.9 F)21 September 1939: Record high minimum temperature 25.0 C (77.0 F)191519201925193019351940
7 all-time records were set at San Diego Wbo between 5 January 1913 and 21 September 1939. Each dot is a new record.
When San Diego Wbo set new all-time records
DateKindDetail
1913-01-05Record low maximum temperatureRecord low maximum temperature 8.3 C (46.9 F)
1913-01-06Record low maximum temperatureRecord low maximum temperature 7.2 C (45.0 F)
1913-01-06Record low minimum temperatureRecord low minimum temperature -2.2 C (28.0 F)
1913-01-07Record low minimum temperatureRecord low minimum temperature -3.9 C (25.0 F)
1913-09-17Record high maximum temperatureRecord high maximum temperature 43.3 C (109.9 F)
1939-09-20Record high minimum temperatureRecord high minimum temperature 24.4 C (75.9 F)
1939-09-21Record high minimum temperatureRecord high minimum temperature 25.0 C (77.0 F)

Wettest Day of Each Month

Dec: 84.8 mm (3.3 in)
Record daily precipitation for each month at San Diego Wbo The wettest day on record for each calendar month at San Diego Wbo. The most was 84.8 mm (3.3 in) on 2 December 1854. 0255075100 Jan: 63.2 mm (2.5 in), 12 January 1882 Jan Feb: 68.8 mm (2.7 in), 6 February 1937 Feb Mar: 59.9 mm (2.4 in), 24 March 1906 Mar Apr: 82.0 mm (3.2 in), 5 April 1926 Apr May: 31.8 mm (1.3 in), 13 May 1853 May Jun: 7.4 mm (0.29 in), 6 June 1934 Jun Jul: 21.1 mm (0.8 in), 25 July 1902 Jul Aug: 45.7 mm (1.8 in), 12 August 1873 Aug Sep: 31.2 mm (1.2 in), 30 September 1921 Sep Oct: 74.9 mm (2.9 in), 4 October 1925 Oct Nov: 68.1 mm (2.7 in), 9 November 1879 Nov Dec: 84.8 mm (3.3 in), 2 December 1854 Dec
The wettest day on record for each calendar month at San Diego Wbo. The most was 84.8 mm (3.3 in) on 2 December 1854.
Record daily precipitation for each month at San Diego Wbo
MonthRecord daily precipitation (mm)Date
Jan63.2 mm (2.5 in)12 January 1882
Feb68.8 mm (2.7 in)6 February 1937
Mar59.9 mm (2.4 in)24 March 1906
Apr82.0 mm (3.2 in)5 April 1926
May31.8 mm (1.3 in)13 May 1853
Jun7.4 mm (0.29 in)6 June 1934
Jul21.1 mm (0.8 in)25 July 1902
Aug45.7 mm (1.8 in)12 August 1873
Sep31.2 mm (1.2 in)30 September 1921
Oct74.9 mm (2.9 in)4 October 1925
Nov68.1 mm (2.7 in)9 November 1879
Dec84.8 mm (3.3 in)2 December 1854

Period of Record Coverage

1874 to 1940
Days with data per year at San Diego Wbo 67 years of record at San Diego Wbo, 1874 to 1940. 2 years have data for under 90 percent of days and are left out of rankings: 1874, 1940. 1874: 89 of 365 days1875: 365 of 365 days1876: 366 of 366 days1877: 365 of 365 days1878: 365 of 365 days1879: 365 of 365 days1880: 366 of 366 days1881: 365 of 365 days1882: 365 of 365 days1883: 365 of 365 days1884: 366 of 366 days1885: 365 of 365 days1886: 365 of 365 days1887: 365 of 365 days1888: 366 of 366 days1889: 365 of 365 days1890: 365 of 365 days1891: 365 of 365 days1892: 366 of 366 days1893: 365 of 365 days1894: 365 of 365 days1895: 365 of 365 days1896: 366 of 366 days1897: 365 of 365 days1898: 365 of 365 days1899: 365 of 365 days1900: 365 of 365 days1901: 365 of 365 days1902: 365 of 365 days1903: 365 of 365 days1904: 366 of 366 days1905: 365 of 365 days1906: 365 of 365 days1907: 365 of 365 days1908: 366 of 366 days1909: 365 of 365 days1910: 365 of 365 days1911: 365 of 365 days1912: 366 of 366 days1913: 365 of 365 days1914: 365 of 365 days1915: 365 of 365 days1916: 366 of 366 days1917: 365 of 365 days1918: 365 of 365 days1919: 365 of 365 days1920: 366 of 366 days1921: 365 of 365 days1922: 365 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 365 of 365 days1926: 365 of 365 days1927: 364 of 365 days1928: 366 of 366 days1929: 360 of 365 days1930: 365 of 365 days1931: 363 of 365 days1932: 366 of 366 days1933: 361 of 365 days1934: 364 of 365 days1935: 365 of 365 days1936: 364 of 366 days1937: 365 of 365 days1938: 364 of 365 days1939: 365 of 365 days1940: 31 of 366 days1880189019001910192019301940
67 years of record at San Diego Wbo, 1874 to 1940. 2 years have data for under 90 percent of days and are left out of rankings: 1874, 1940.
Days with data per year at San Diego Wbo
YearDays with dataShare of yearComplete
18748924%No
1875365100%Yes
1876366100%Yes
1877365100%Yes
1878365100%Yes
1879365100%Yes
1880366100%Yes
1881365100%Yes
1882365100%Yes
1883365100%Yes
1884366100%Yes
1885365100%Yes
1886365100%Yes
1887365100%Yes
1888366100%Yes
1889365100%Yes
1890365100%Yes
1891365100%Yes
1892366100%Yes
1893365100%Yes
1894365100%Yes
1895365100%Yes
1896366100%Yes
1897365100%Yes
1898365100%Yes
1899365100%Yes
1900365100%Yes
1901365100%Yes
1902365100%Yes
1903365100%Yes
1904366100%Yes
1905365100%Yes
1906365100%Yes
1907365100%Yes
1908366100%Yes
1909365100%Yes
1910365100%Yes
1911365100%Yes
1912366100%Yes
1913365100%Yes
1914365100%Yes
1915365100%Yes
1916366100%Yes
1917365100%Yes
1918365100%Yes
1919365100%Yes
1920366100%Yes
1921365100%Yes
1922365100%Yes
1923365100%Yes
1924366100%Yes
1925365100%Yes
1926365100%Yes
1927364100%Yes
1928366100%Yes
192936099%Yes
1930365100%Yes
193136399%Yes
1932366100%Yes
193336199%Yes
1934364100%Yes
1935365100%Yes
193636499%Yes
1937365100%Yes
1938364100%Yes
1939365100%Yes
1940318%No

Latest Records

20
Latest records at San Diego Wbo
DateStationRecordValueBeat old record byOld record stoodSignificance
10 January 1940San Diego Wbo, USdaily high min13.9 C (57.0 F)1.7 C (3.1 F)54 years28 of 100 (Routine)
8 January 1940San Diego Wbo, USdaily high min14.4 C (57.9 F)2.2 C (4.0 F)39 years25 of 100 (Routine)
5 January 1940San Diego Wbo, USdaily high min14.4 C (57.9 F)0.5 C (0.9 F)37 years18 of 100 (Routine)
4 January 1940San Diego Wbo, USdaily high min14.4 C (57.9 F)0.5 C (0.9 F)39 years18 of 100 (Routine)
3 January 1940San Diego Wbo, USdaily high min14.4 C (57.9 F)0.5 C (0.9 F)39 years18 of 100 (Routine)
2 January 1940San Diego Wbo, USdaily high min13.3 C (55.9 F)1.1 C (2.0 F)37 years21 of 100 (Routine)
1 January 1940San Diego Wbo, USdaily high min (Tie)13.9 C (57.0 F)tie17 years2 of 100 (Routine)
6 December 1939San Diego Wbo, USdaily high min (Tie)14.4 C (57.9 F)tie49 years5 of 100 (Routine)
5 December 1939San Diego Wbo, USdaily high min (Tie)14.4 C (57.9 F)tie38 years4 of 100 (Routine)
4 December 1939San Diego Wbo, USdaily high max26.1 C (79.0 F)0.5 C (0.9 F)56 years24 of 100 (Routine)
27 November 1939San Diego Wbo, USdaily rain19.1 mm (0.8 in)1.8 mm (0.07 in)8 years13 of 100 (Routine)
24 November 1939San Diego Wbo, USdaily high min (Tie)15.6 C (60.1 F)tie6 years2 of 100 (Routine)
22 November 1939San Diego Wbo, USdaily high max30.0 C (86.0 F)2.8 C (5.0 F)48 years28 of 100 (Routine)
8 November 1939San Diego Wbo, USdaily high min (Tie)16.7 C (62.1 F)tie8 years2 of 100 (Routine)
5 November 1939San Diego Wbo, USdaily high min17.2 C (63.0 F)1.1 C (2.0 F)12 years13 of 100 (Routine)
30 October 1939San Diego Wbo, USdaily high max (Tie)31.1 C (88.0 F)tie8 years2 of 100 (Routine)
12 October 1939San Diego Wbo, USmonthly high max (Tie)35.6 C (96.1 F)tie37 years6 of 100 (Routine)
11 October 1939San Diego Wbo, USdaily high max30.6 C (87.1 F)1.2 C (2.2 F)29 years17 of 100 (Routine)
7 October 1939San Diego Wbo, USdaily rain14.5 mm (0.6 in)6.6 mm (0.26 in)16 years20 of 100 (Routine)
7 October 1939San Diego Wbo, USdaily low max (Tie)17.8 C (64.0 F)tie22 years3 of 100 (Routine)

Climate Trend

65 complete years, 1875 to 1939
Annual mean temperature at San Diego Wbo as warming stripes, 1875 to 1939 One stripe for each of 65 complete years at San Diego Wbo, 1875 to 1939. Blue stripes are years cooler than the station's own mean of 16.3 C (61.3 F); red stripes are warmer. The coolest year was 1894, at 14.7 C (58.5 F), and the warmest was 1931, at 18.0 C (64.3 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1875: 16.7 C, +0.4 C from the station mean1876: 16.4 C, +0.1 C from the station mean1877: 16.9 C, +0.6 C from the station mean1878: 16.2 C, -0.1 C from the station mean1879: 16.0 C, -0.2 C from the station mean1880: 14.9 C, -1.4 C from the station mean1881: 15.8 C, -0.4 C from the station mean1882: 15.6 C, -0.7 C from the station mean1883: 16.5 C, +0.2 C from the station mean1884: 16.1 C, -0.2 C from the station mean1885: 17.0 C, +0.7 C from the station mean1886: 16.2 C, -0.1 C from the station mean1887: 15.9 C, -0.4 C from the station mean1888: 16.5 C, +0.3 C from the station mean1889: 17.0 C, +0.7 C from the station mean1890: 16.5 C, +0.3 C from the station mean1891: 16.2 C, 0.0 C from the station mean1892: 15.7 C, -0.6 C from the station mean1893: 15.9 C, -0.4 C from the station mean1894: 14.7 C, -1.6 C from the station mean1895: 15.8 C, -0.4 C from the station mean1896: 16.6 C, +0.3 C from the station mean1897: 16.1 C, -0.2 C from the station mean1898: 15.9 C, -0.4 C from the station mean1899: 15.6 C, -0.6 C from the station mean1900: 16.7 C, +0.4 C from the station mean1901: 16.2 C, -0.1 C from the station mean1902: 15.6 C, -0.7 C from the station mean1903: 16.2 C, 0.0 C from the station mean1904: 16.9 C, +0.6 C from the station mean1905: 16.3 C, 0.0 C from the station mean1906: 16.4 C, +0.2 C from the station mean1907: 16.3 C, +0.1 C from the station mean1908: 15.5 C, -0.8 C from the station mean1909: 15.5 C, -0.8 C from the station mean1910: 16.0 C, -0.3 C from the station mean1911: 15.7 C, -0.5 C from the station mean1912: 15.8 C, -0.4 C from the station mean1913: 16.0 C, -0.3 C from the station mean1914: 16.6 C, +0.4 C from the station mean1915: 16.3 C, +0.1 C from the station mean1916: 15.3 C, -0.9 C from the station mean1917: 16.0 C, -0.3 C from the station mean1918: 16.8 C, +0.5 C from the station mean1919: 16.1 C, -0.1 C from the station mean1920: 15.8 C, -0.4 C from the station mean1921: 16.2 C, -0.1 C from the station mean1922: 16.0 C, -0.2 C from the station mean1923: 16.6 C, +0.4 C from the station mean1924: 16.2 C, -0.1 C from the station mean1925: 16.7 C, +0.4 C from the station mean1926: 17.3 C, +1.1 C from the station mean1927: 16.5 C, +0.2 C from the station mean1928: 16.5 C, +0.2 C from the station mean1929: 16.8 C, +0.6 C from the station mean1930: 17.0 C, +0.8 C from the station mean1931: 18.0 C, +1.7 C from the station mean1932: 16.1 C, -0.2 C from the station mean1933: 15.3 C, -1.0 C from the station mean1934: 17.4 C, +1.1 C from the station mean1935: 16.4 C, +0.1 C from the station mean1936: 17.1 C, +0.8 C from the station mean1937: 16.4 C, +0.1 C from the station mean1938: 16.8 C, +0.5 C from the station mean1939: 17.2 C, +0.9 C from the station mean1875188018901900191019201930
One stripe for each of 65 complete years at San Diego Wbo, 1875 to 1939. Blue stripes are years cooler than the station's own mean of 16.3 C (61.3 F); red stripes are warmer. The coolest year was 1894, at 14.7 C (58.5 F), and the warmest was 1931, at 18.0 C (64.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at San Diego Wbo as warming stripes, 1875 to 1939
YearAnnual mean temperatureDifference from the station mean
187516.7 C+0.41 C
187616.4 C+0.12 C
187716.9 C+0.63 C
187816.2 C-0.05 C
187916.0 C-0.24 C
188014.9 C-1.35 C
188115.8 C-0.42 C
188215.6 C-0.68 C
188316.5 C+0.20 C
188416.1 C-0.18 C
188517.0 C+0.70 C
188616.2 C-0.10 C
188715.9 C-0.35 C
188816.5 C+0.28 C
188917.0 C+0.70 C
189016.5 C+0.28 C
189116.2 C-0.04 C
189215.7 C-0.56 C
189315.9 C-0.36 C
189414.7 C-1.56 C
189515.8 C-0.43 C
189616.6 C+0.33 C
189716.1 C-0.19 C
189815.9 C-0.40 C
189915.6 C-0.62 C
190016.7 C+0.43 C
190116.2 C-0.05 C
190215.6 C-0.67 C
190316.2 C-0.04 C
190416.9 C+0.62 C
190516.3 C+0.05 C
190616.4 C+0.17 C
190716.3 C+0.07 C
190815.5 C-0.75 C
190915.5 C-0.75 C
191016.0 C-0.30 C
191115.7 C-0.53 C
191215.8 C-0.43 C
191316.0 C-0.30 C
191416.6 C+0.38 C
191516.3 C+0.06 C
191615.3 C-0.93 C
191716.0 C-0.26 C
191816.8 C+0.55 C
191916.1 C-0.14 C
192015.8 C-0.42 C
192116.2 C-0.11 C
192216.0 C-0.24 C
192316.6 C+0.37 C
192416.2 C-0.07 C
192516.7 C+0.41 C
192617.3 C+1.07 C
192716.5 C+0.22 C
192816.5 C+0.20 C
192916.8 C+0.56 C
193017.0 C+0.77 C
193118.0 C+1.71 C
193216.1 C-0.17 C
193315.3 C-1.00 C
193417.4 C+1.15 C
193516.4 C+0.12 C
193617.1 C+0.85 C
193716.4 C+0.15 C
193816.8 C+0.53 C
193917.2 C+0.90 C

The annual mean temperature here has risen by 0.10 C (0.02 to 0.17) per decade over 1875 to 1939. In Fahrenheit: 0.17 F (0.04 to 0.31) per decade. The slope is a straight line fitted to 65 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Diego Wbo
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.10 C (0.02 to 0.17) per decade0.17 F (0.04 to 0.31) per decade1875 to 193965Rise
Mean daily maximum0.03 C (-0.06 to 0.12) per decade0.1 F (-0.1 to 0.2) per decade1875 to 193965Not clearly different from zero
Mean daily minimum0.2 C (0.1 to 0.2) per decade0.3 F (0.1 to 0.4) per decade1875 to 193965Rise

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

1850 to 1940
Yearly extremes at San Diego Wbo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.3 C (109.9 F)191332.2 C (90.0 F)67
Coldest night (TNn)-3.9 C (25.0 F)19132.2 C (36.0 F)67
Wettest day (Rx1day)84.8 mm (3.3 in)185432.8 mm (1.3 in)88
Wettest five days (Rx5day)149.1 mm (5.9 in)189556.3 mm (2.2 in)88
Longest dry spell (CDD)225 days1909114 days88

Hottest day (TXx)

Hottest day (TXx) at San Diego Wbo by year The hottest day of the year at San Diego Wbo, 1850 to 1940. The record is 43.3 C (109.9 F) in 1913, marked on the chart; the median year is 32.2 C (90.0 F). 2030405018601880190019201940Record: 43.3 C (109.9 F) in 1913
The hottest day of the year at San Diego Wbo, 1850 to 1940. The record is 43.3 C (109.9 F) in 1913, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at San Diego Wbo by year
YearHottest day (TXx)
1850n/a
1851n/a
1852n/a
1853n/a
1854n/a
1855n/a
1856n/a
1857n/a
1858n/a
1859n/a
1860n/a
1861n/a
1862n/a
1863n/a
1864n/a
1865n/a
1866n/a
1870n/a
1871n/a
1872n/a
1873n/a
187432.2 C (90.0 F)
187531.1 C (88.0 F)
187630.6 C (87.1 F)
187734.4 C (93.9 F)
187837.8 C (100.0 F)
187937.2 C (99.0 F)
188028.9 C (84.0 F)
188130.0 C (86.0 F)
188228.3 C (82.9 F)
188338.3 C (100.9 F)
188433.3 C (91.9 F)
188532.2 C (90.0 F)
188627.8 C (82.0 F)
188729.4 C (84.9 F)
188833.9 C (93.0 F)
188932.8 C (91.0 F)
189033.9 C (93.0 F)
189131.7 C (89.1 F)
189230.6 C (87.1 F)
189331.1 C (88.0 F)
189432.2 C (90.0 F)
189532.2 C (90.0 F)
189636.7 C (98.1 F)
189731.7 C (89.1 F)
189832.8 C (91.0 F)
189933.9 C (93.0 F)
190031.7 C (89.1 F)
190135.6 C (96.1 F)
190227.2 C (81.0 F)
190329.4 C (84.9 F)
190434.4 C (93.9 F)
190531.1 C (88.0 F)
190632.8 C (91.0 F)
190730.0 C (86.0 F)
190828.9 C (84.0 F)
190937.8 C (100.0 F)
191035.6 C (96.1 F)
191133.9 C (93.0 F)
191234.4 C (93.9 F)
191343.3 C (109.9 F)
191432.2 C (90.0 F)
191532.8 C (91.0 F)
191628.9 C (84.0 F)
191733.3 C (91.9 F)
191834.4 C (93.9 F)
191932.8 C (91.0 F)
192027.8 C (82.0 F)
192133.9 C (93.0 F)
192233.3 C (91.9 F)
192332.8 C (91.0 F)
192431.1 C (88.0 F)
192531.1 C (88.0 F)
192632.2 C (90.0 F)
192734.4 C (93.9 F)
192828.3 C (82.9 F)
192935.0 C (95.0 F)
193037.8 C (100.0 F)
193135.6 C (96.1 F)
193230.6 C (87.1 F)
193330.6 C (87.1 F)
193431.7 C (89.1 F)
193530.0 C (86.0 F)
193634.4 C (93.9 F)
193732.2 C (90.0 F)
193831.1 C (88.0 F)
193941.1 C (106.0 F)
194022.8 C (73.0 F)

Coldest night (TNn)

Coldest night (TNn) at San Diego Wbo by year The coldest night of the year at San Diego Wbo, 1850 to 1940. The record is -3.9 C (25.0 F) in 1913, marked on the chart; the median year is 2.2 C (36.0 F). -5051018601880190019201940Record: -3.9 C (25.0 F) in 1913
The coldest night of the year at San Diego Wbo, 1850 to 1940. The record is -3.9 C (25.0 F) in 1913, marked on the chart; the median year is 2.2 C (36.0 F).
Coldest night (TNn) at San Diego Wbo by year
YearColdest night (TNn)
1850n/a
1851n/a
1852n/a
1853n/a
1854n/a
1855n/a
1856n/a
1857n/a
1858n/a
1859n/a
1860n/a
1861n/a
1862n/a
1863n/a
1864n/a
1865n/a
1866n/a
1870n/a
1871n/a
1872n/a
1873n/a
18743.9 C (39.0 F)
18753.3 C (37.9 F)
18763.9 C (39.0 F)
18774.4 C (39.9 F)
18781.7 C (35.1 F)
18790.0 C (32.0 F)
18800.0 C (32.0 F)
18812.2 C (36.0 F)
18821.1 C (34.0 F)
18830.0 C (32.0 F)
18842.2 C (36.0 F)
18853.3 C (37.9 F)
18861.7 C (35.1 F)
18872.2 C (36.0 F)
18880.6 C (33.1 F)
18892.2 C (36.0 F)
18901.7 C (35.1 F)
18910.0 C (32.0 F)
18922.2 C (36.0 F)
18933.3 C (37.9 F)
18940.0 C (32.0 F)
18951.1 C (34.0 F)
18963.9 C (39.0 F)
18972.2 C (36.0 F)
18982.2 C (36.0 F)
18991.1 C (34.0 F)
19006.7 C (44.1 F)
19011.7 C (35.1 F)
19022.2 C (36.0 F)
19031.7 C (35.1 F)
19042.2 C (36.0 F)
19053.3 C (37.9 F)
19061.7 C (35.1 F)
19071.7 C (35.1 F)
19082.8 C (37.0 F)
19092.2 C (36.0 F)
19101.1 C (34.0 F)
19111.1 C (34.0 F)
19123.9 C (39.0 F)
1913-3.9 C (25.0 F)
19143.9 C (39.0 F)
19153.3 C (37.9 F)
19162.2 C (36.0 F)
19173.9 C (39.0 F)
19181.7 C (35.1 F)
19191.7 C (35.1 F)
19202.8 C (37.0 F)
19213.3 C (37.9 F)
19221.7 C (35.1 F)
19233.3 C (37.9 F)
19242.2 C (36.0 F)
19254.4 C (39.9 F)
19262.8 C (37.0 F)
19274.4 C (39.9 F)
19282.8 C (37.0 F)
19293.3 C (37.9 F)
19305.0 C (41.0 F)
19313.3 C (37.9 F)
19321.7 C (35.1 F)
19333.9 C (39.0 F)
19345.6 C (42.1 F)
19354.4 C (39.9 F)
19365.0 C (41.0 F)
1937-1.1 C (30.0 F)
19385.6 C (42.1 F)
19392.2 C (36.0 F)
19407.2 C (45.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Diego Wbo by year The wettest day of the year at San Diego Wbo, 1850 to 1940. The record is 84.8 mm (3.3 in) in 1854, marked on the chart; the median year is 32.8 mm (1.3 in). 02040608010018601880190019201940Record: 84.8 mm (3.3 in) in 1854
The wettest day of the year at San Diego Wbo, 1850 to 1940. The record is 84.8 mm (3.3 in) in 1854, marked on the chart; the median year is 32.8 mm (1.3 in).
Wettest day (Rx1day) at San Diego Wbo by year
YearWettest day (Rx1day)
185037.1 mm (1.5 in)
185139.4 mm (1.6 in)
185239.4 mm (1.6 in)
185331.8 mm (1.3 in)
185484.8 mm (3.3 in)
185540.6 mm (1.6 in)
185635.6 mm (1.4 in)
185732.8 mm (1.3 in)
185827.9 mm (1.1 in)
185930.5 mm (1.2 in)
186047.0 mm (1.9 in)
186133.0 mm (1.3 in)
186231.8 mm (1.3 in)
186321.6 mm (0.9 in)
186411.2 mm (0.4 in)
186520.3 mm (0.8 in)
186633.0 mm (1.3 in)
187012.7 mm (0.5 in)
187112.4 mm (0.5 in)
187228.4 mm (1.1 in)
187364.0 mm (2.5 in)
187434.3 mm (1.4 in)
187524.1 mm (0.9 in)
187638.9 mm (1.5 in)
187727.7 mm (1.1 in)
187828.2 mm (1.1 in)
187968.1 mm (2.7 in)
188032.8 mm (1.3 in)
188121.1 mm (0.8 in)
188263.2 mm (2.5 in)
188346.2 mm (1.8 in)
188442.2 mm (1.7 in)
188520.3 mm (0.8 in)
188639.6 mm (1.6 in)
188749.8 mm (2.0 in)
188825.9 mm (1.0 in)
188944.5 mm (1.8 in)
189029.0 mm (1.1 in)
189127.7 mm (1.1 in)
189227.9 mm (1.1 in)
189346.5 mm (1.8 in)
189411.7 mm (0.5 in)
189554.6 mm (2.1 in)
189633.5 mm (1.3 in)
189741.1 mm (1.6 in)
189818.0 mm (0.7 in)
189929.0 mm (1.1 in)
190021.6 mm (0.9 in)
190160.7 mm (2.4 in)
190244.7 mm (1.8 in)
190319.8 mm (0.8 in)
190420.8 mm (0.8 in)
190542.9 mm (1.7 in)
190659.9 mm (2.4 in)
190720.1 mm (0.8 in)
190829.2 mm (1.1 in)
190927.9 mm (1.1 in)
191017.8 mm (0.7 in)
191144.7 mm (1.8 in)
191232.8 mm (1.3 in)
191325.4 mm (1.0 in)
191451.8 mm (2.0 in)
191542.4 mm (1.7 in)
191655.6 mm (2.2 in)
191732.3 mm (1.3 in)
191845.0 mm (1.8 in)
191925.4 mm (1.0 in)
192024.6 mm (1.0 in)
192153.1 mm (2.1 in)
192227.9 mm (1.1 in)
192325.1 mm (1.0 in)
192418.3 mm (0.7 in)
192574.9 mm (2.9 in)
192682.0 mm (3.2 in)
192746.7 mm (1.8 in)
192826.2 mm (1.0 in)
192912.7 mm (0.5 in)
193035.6 mm (1.4 in)
193131.5 mm (1.2 in)
193242.4 mm (1.7 in)
193334.0 mm (1.3 in)
193429.5 mm (1.2 in)
193544.7 mm (1.8 in)
193636.8 mm (1.4 in)
193768.8 mm (2.7 in)
193859.7 mm (2.4 in)
193920.8 mm (0.8 in)
194011.2 mm (0.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Diego Wbo by year The wettest five days of the year at San Diego Wbo, 1850 to 1940. The record is 149.1 mm (5.9 in) in 1895, marked on the chart; the median year is 56.3 mm (2.2 in). 05010015018601880190019201940Record: 149.1 mm (5.9 in) in 1895
The wettest five days of the year at San Diego Wbo, 1850 to 1940. The record is 149.1 mm (5.9 in) in 1895, marked on the chart; the median year is 56.3 mm (2.2 in).
Wettest five days (Rx5day) at San Diego Wbo by year
YearWettest five days (Rx5day)
185045.9 mm (1.8 in)
185153.6 mm (2.1 in)
185294.0 mm (3.7 in)
185350.9 mm (2.0 in)
185485.3 mm (3.4 in)
185593.4 mm (3.7 in)
185635.9 mm (1.4 in)
185743.5 mm (1.7 in)
185841.9 mm (1.6 in)
185955.9 mm (2.2 in)
186047.0 mm (1.9 in)
186134.5 mm (1.4 in)
186245.7 mm (1.8 in)
186321.6 mm (0.9 in)
186420.6 mm (0.8 in)
186539.4 mm (1.6 in)
186672.4 mm (2.9 in)
187021.8 mm (0.9 in)
187129.0 mm (1.1 in)
187236.5 mm (1.4 in)
1873130.1 mm (5.1 in)
187472.7 mm (2.9 in)
187544.4 mm (1.7 in)
187643.7 mm (1.7 in)
187760.2 mm (2.4 in)
187844.2 mm (1.7 in)
1879107.5 mm (4.2 in)
188054.6 mm (2.1 in)
188129.2 mm (1.1 in)
188294.2 mm (3.7 in)
188346.2 mm (1.8 in)
188497.3 mm (3.8 in)
188527.7 mm (1.1 in)
188691.2 mm (3.6 in)
188770.5 mm (2.8 in)
188856.7 mm (2.2 in)
188979.9 mm (3.1 in)
189048.3 mm (1.9 in)
189166.8 mm (2.6 in)
189270.1 mm (2.8 in)
189360.0 mm (2.4 in)
189425.1 mm (1.0 in)
1895149.1 mm (5.9 in)
189641.9 mm (1.6 in)
189768.3 mm (2.7 in)
189829.8 mm (1.2 in)
189946.8 mm (1.8 in)
190035.3 mm (1.4 in)
190198.3 mm (3.9 in)
190266.6 mm (2.6 in)
190347.9 mm (1.9 in)
190440.1 mm (1.6 in)
1905104.2 mm (4.1 in)
190683.6 mm (3.3 in)
190739.2 mm (1.5 in)
190851.1 mm (2.0 in)
190967.0 mm (2.6 in)
191051.5 mm (2.0 in)
191160.7 mm (2.4 in)
191263.3 mm (2.5 in)
191346.0 mm (1.8 in)
191466.9 mm (2.6 in)
191562.7 mm (2.5 in)
191694.0 mm (3.7 in)
191760.3 mm (2.4 in)
191870.9 mm (2.8 in)
191932.5 mm (1.3 in)
192044.5 mm (1.8 in)
1921146.9 mm (5.8 in)
192250.0 mm (2.0 in)
192342.4 mm (1.7 in)
192439.7 mm (1.6 in)
192588.9 mm (3.5 in)
1926127.7 mm (5.0 in)
1927143.0 mm (5.6 in)
192831.5 mm (1.2 in)
192921.6 mm (0.9 in)
193065.8 mm (2.6 in)
193169.0 mm (2.7 in)
193261.2 mm (2.4 in)
193378.7 mm (3.1 in)
193461.2 mm (2.4 in)
1935105.1 mm (4.1 in)
193676.5 mm (3.0 in)
193782.0 mm (3.2 in)
1938100.3 mm (3.9 in)
193932.2 mm (1.3 in)
194029.6 mm (1.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Diego Wbo by year The longest dry spell of the year at San Diego Wbo, 1850 to 1940. The record is 225 days in 1909, marked on the chart; the median year is 114 days. 010020030018601880190019201940Record: 225 days in 1909
The longest dry spell of the year at San Diego Wbo, 1850 to 1940. The record is 225 days in 1909, marked on the chart; the median year is 114 days.
Longest dry spell (CDD) at San Diego Wbo by year
YearLongest dry spell (CDD)
185026 days
1851172 days
185282 days
185375 days
185481 days
185544 days
1856200 days
185777 days
185883 days
1859116 days
1860117 days
1861202 days
186291 days
1863144 days
1864106 days
1865121 days
186629 days
187052 days
187195 days
1872113 days
1873127 days
187474 days
187590 days
187672 days
1877137 days
1878120 days
1879120 days
188045 days
1881107 days
1882114 days
1883116 days
188481 days
188566 days
1886147 days
1887172 days
1888107 days
188966 days
1890114 days
1891110 days
189280 days
1893162 days
1894103 days
1895153 days
1896111 days
1897129 days
1898130 days
189977 days
1900114 days
1901120 days
190286 days
1903129 days
1904131 days
190569 days
190683 days
1907113 days
190898 days
1909225 days
1910139 days
191175 days
191249 days
1913104 days
1914153 days
1915171 days
1916193 days
1917144 days
1918147 days
1919127 days
1920116 days
1921130 days
1922161 days
1923171 days
1924164 days
192597 days
1926108 days
192795 days
1928115 days
1929101 days
1930153 days
193179 days
1932164 days
1933133 days
193488 days
1935116 days
193685 days
1937133 days
1938122 days
1939134 days
194011 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.

Rainfall Return Levels

81 years, 1851 to 1939

A day with at least 33.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 90.6 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at San Diego Wbo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years33.9 mm (1.3 in)
5 years48.3 mm (1.9 in)
10 years58.1 mm (2.3 in)
25 years70.9 mm (2.8 in)
50 years80.6 mm (3.2 in)
100 years90.6 mm (3.6 in)Longer than the 81 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 81 years of values from 1851 to 1939.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 84.8 mm (3.3 in) in 1854; 82.0 mm (3.2 in) in 1926; 74.9 mm (2.9 in) in 1925.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for San Diego Wbo standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for San Diego Wbo 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

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