San Gabriel Canyon Ph Weather Records (USC00047776)

Record envelope, standing records and threshold days for San Gabriel Canyon Ph (USC00047776), California, United States, with 110 years of record.

Key Facts for San Gabriel Canyon Ph

San Gabriel Canyon Ph (USC00047776) is a weather station in California, United States at 34.16 latitude and -117.91 longitude, 227 m (744 ft) above sea level.
The station reports from 1917 to 2026, 110 years of record.
1,464 records set at San Gabriel Canyon Ph still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
San Gabriel Canyon Ph set a daily record precipitation of 12.7 mm (0.5 in) on 7 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: California, United States, 34.16 latitude, -117.91 longitude.
Elevation: 227 m (744 ft).
Period of record: 1917 to 2026, 110 years.
Eligible elements: prcp, snow, snwd.

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 Gabriel Canyon Ph. 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 Gabriel Canyon Ph, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.2 C (99.0 F)	0.0 C (32.0 F)	n/a	n/a
Feb	33.3 C (91.9 F)	-1.1 C (30.0 F)	n/a	n/a
Mar	36.1 C (97.0 F)	0.6 C (33.1 F)	n/a	n/a
Apr	37.8 C (100.0 F)	0.0 C (32.0 F)	n/a	n/a
May	43.9 C (111.0 F)	5.0 C (41.0 F)	n/a	n/a
Jun	47.2 C (117.0 F)	8.3 C (46.9 F)	n/a	n/a
Jul	42.8 C (109.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	42.8 C (109.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	44.4 C (111.9 F)	4.4 C (39.9 F)	n/a	n/a
Oct	43.3 C (109.9 F)	4.4 C (39.9 F)	n/a	n/a
Nov	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
Dec	32.2 C (90.0 F)	1.7 C (35.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Gabriel Canyon Ph still stand. 2014 holds the most, with 160.

Standing records at San Gabriel Canyon Ph by the year they were set
Year set	Standing records
1917	4
1919	40
1920	129
1921	140
1924	126
1925	102
1926	95
1927	107
1928	87
1929	68
1930	55
1953	1
2011	53
2012	152
2013	106
2014	160
2015	39

Wettest Day of Each Month

Dec: 209.6 mm (8.3 in)

The wettest day on record for each calendar month at San Gabriel Canyon Ph. The most was 209.6 mm (8.3 in) on 31 December 1933.

Record daily precipitation for each month at San Gabriel Canyon Ph
Month	Record daily precipitation (mm)	Date
Jan	206.5 mm (8.1 in)	26 January 1956
Feb	152.9 mm (6.0 in)	19 February 1993
Mar	164.3 mm (6.5 in)	2 March 1938
Apr	114.0 mm (4.5 in)	5 April 1926
May	92.5 mm (3.6 in)	6 May 1998
Jun	28.4 mm (1.1 in)	6 June 1993
Jul	13.5 mm (0.5 in)	20 July 2015
Aug	113.5 mm (4.5 in)	21 August 2023
Sep	97.5 mm (3.8 in)	25 September 1986
Oct	108.7 mm (4.3 in)	20 October 2004
Nov	89.7 mm (3.5 in)	22 November 1996
Dec	209.6 mm (8.3 in)	31 December 1933

Period of Record Coverage

1917 to 2015

17 years of record at San Gabriel Canyon Ph, 1917 to 2015. 9 years have data for under 90 percent of days and are left out of rankings: 1917, 1919, 1921, 1924, 1929, 1930, 1953, 2011 and others.

Days with data per year at San Gabriel Canyon Ph
Year	Days with data	Share of year	Complete
1917	5	1%	No
1919	153	42%	No
1920	366	100%	Yes
1921	303	83%	No
1924	274	75%	No
1925	364	100%	Yes
1926	365	100%	Yes
1927	365	100%	Yes
1928	365	100%	Yes
1929	242	66%	No
1930	149	41%	No
1953	1	0%	No
2011	252	69%	No
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	76	21%	No

Latest Records

Latest records at San Gabriel Canyon Ph
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 September 2026	San Gabriel Canyon Ph, US	daily rain (Provisional)	12.7 mm (0.5 in)	12.2 mm (0.5 in)	48 years	20 of 100 (Routine)
25 December 2025	San Gabriel Canyon Ph, US	daily rain	54.9 mm (2.2 in)	7.4 mm (0.29 in)	42 years	25 of 100 (Routine)
21 November 2025	San Gabriel Canyon Ph, US	daily rain	38.1 mm (1.5 in)	3.8 mm (0.15 in)	20 years	18 of 100 (Routine)
16 November 2025	San Gabriel Canyon Ph, US	daily rain	66.0 mm (2.6 in)	27.1 mm (1.1 in)	60 years	44 of 100 (Notable)
15 November 2025	San Gabriel Canyon Ph, US	daily rain	38.1 mm (1.5 in)	3.0 mm (0.12 in)	94 years	39 of 100 (Notable)
15 October 2025	San Gabriel Canyon Ph, US	daily rain	38.4 mm (1.5 in)	29.5 mm (1.2 in)	87 years	58 of 100 (Notable)
7 February 2025	San Gabriel Canyon Ph, US	daily rain	54.4 mm (2.1 in)	3.1 mm (0.12 in)	27 years	19 of 100 (Routine)
5 May 2024	San Gabriel Canyon Ph, US	daily rain	15.0 mm (0.6 in)	4.6 mm (0.18 in)	98 years	20 of 100 (Routine)
5 February 2024	San Gabriel Canyon Ph, US	daily rain	146.3 mm (5.8 in)	96.0 mm (3.8 in)	88 years	76 of 100 (Major)
21 August 2023	San Gabriel Canyon Ph, US	monthly rain	113.5 mm (4.5 in)	51.3 mm (2.0 in)	46 years	73 of 100 (Major)
20 August 2023	San Gabriel Canyon Ph, US	daily rain	15.7 mm (0.6 in)	4.3 mm (0.17 in)	40 years	20 of 100 (Routine)
11 June 2023	San Gabriel Canyon Ph, US	daily rain	4.6 mm (0.18 in)	1.6 mm (0.06 in)	60 years	20 of 100 (Routine)
22 March 2023	San Gabriel Canyon Ph, US	daily rain	51.6 mm (2.0 in)	11.7 mm (0.5 in)	102 years	46 of 100 (Notable)
15 March 2023	San Gabriel Canyon Ph, US	daily rain	84.6 mm (3.3 in)	25.7 mm (1.0 in)	92 years	51 of 100 (Notable)
11 December 2022	San Gabriel Canyon Ph, US	daily rain	63.8 mm (2.5 in)	11.2 mm (0.4 in)	25 years	22 of 100 (Routine)
8 November 2022	San Gabriel Canyon Ph, US	daily rain	39.9 mm (1.6 in)	13.2 mm (0.5 in)	20 years	23 of 100 (Routine)
2 November 2022	San Gabriel Canyon Ph, US	daily rain	8.4 mm (0.33 in)	0.3 mm (0.01 in)	64 years	20 of 100 (Routine)
30 December 2021	San Gabriel Canyon Ph, US	daily rain	64.3 mm (2.5 in)	8.2 mm (0.32 in)	70 years	34 of 100 (Routine)
24 December 2021	San Gabriel Canyon Ph, US	daily rain	86.9 mm (3.4 in)	9.9 mm (0.39 in)	50 years	29 of 100 (Routine)
26 October 2021	San Gabriel Canyon Ph, US	daily rain	25.4 mm (1.0 in)	2.3 mm (0.09 in)	80 years	35 of 100 (Notable)

Extremes by Year

1917 to 2026

Yearly extremes at San Gabriel Canyon Ph: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.2 C (117.0 F)	1917	40.6 C (105.1 F)	17
Coldest night (TNn)	-1.1 C (30.0 F)	1929	1.1 C (34.0 F)	15
Wettest day (Rx1day)	209.6 mm (8.3 in)	1933	75.1 mm (3.0 in)	110
Wettest five days (Rx5day)	392.9 mm (15.5 in)	1980	120.5 mm (4.7 in)	110
Longest dry spell (CDD)	194 days	1996	108 days	110

Hottest day (TXx)

The hottest day of the year at San Gabriel Canyon Ph, 1917 to 2026. The record is 47.2 C (117.0 F) in 1917, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at San Gabriel Canyon Ph by year
Year	Hottest day (TXx)
1917	47.2 C (117.0 F)
1918	n/a
1919	38.9 C (102.0 F)
1920	41.7 C (107.1 F)
1921	40.6 C (105.1 F)
1922	n/a
1923	n/a
1924	38.9 C (102.0 F)
1925	40.0 C (104.0 F)
1926	41.7 C (107.1 F)
1927	40.0 C (104.0 F)
1928	38.9 C (102.0 F)
1929	42.2 C (108.0 F)
1930	35.6 C (96.1 F)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	37.2 C (99.0 F)
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	42.2 C (108.0 F)
2012	44.4 C (111.9 F)
2013	43.3 C (109.9 F)
2014	43.9 C (111.0 F)
2015	36.1 C (97.0 F)
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at San Gabriel Canyon Ph, 1917 to 2026. The record is -1.1 C (30.0 F) in 1929, marked on the chart; the median year is 1.1 C (34.0 F).

Coldest night (TNn) at San Gabriel Canyon Ph by year
Year	Coldest night (TNn)
1917	n/a
1918	n/a
1919	0.0 C (32.0 F)
1920	0.0 C (32.0 F)
1921	0.6 C (33.1 F)
1922	n/a
1923	n/a
1924	0.6 C (33.1 F)
1925	1.7 C (35.1 F)
1926	2.8 C (37.0 F)
1927	1.7 C (35.1 F)
1928	1.1 C (34.0 F)
1929	-1.1 C (30.0 F)
1930	0.0 C (32.0 F)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	5.0 C (41.0 F)
2012	3.3 C (37.9 F)
2013	0.0 C (32.0 F)
2014	4.4 C (39.9 F)
2015	2.8 C (37.0 F)
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at San Gabriel Canyon Ph, 1917 to 2026. The record is 209.6 mm (8.3 in) in 1933, marked on the chart; the median year is 75.1 mm (3.0 in).

Wettest day (Rx1day) at San Gabriel Canyon Ph by year
Year	Wettest day (Rx1day)
1917	36.8 mm (1.4 in)
1918	71.4 mm (2.8 in)
1919	50.3 mm (2.0 in)
1920	62.7 mm (2.5 in)
1921	93.2 mm (3.7 in)
1922	67.8 mm (2.7 in)
1923	28.4 mm (1.1 in)
1924	53.3 mm (2.1 in)
1925	44.5 mm (1.8 in)
1926	114.0 mm (4.5 in)
1927	101.6 mm (4.0 in)
1928	69.6 mm (2.7 in)
1929	69.3 mm (2.7 in)
1930	58.9 mm (2.3 in)
1931	82.0 mm (3.2 in)
1932	72.9 mm (2.9 in)
1933	209.6 mm (8.3 in)
1934	157.5 mm (6.2 in)
1935	83.1 mm (3.3 in)
1936	77.0 mm (3.0 in)
1937	94.7 mm (3.7 in)
1938	164.3 mm (6.5 in)
1939	94.2 mm (3.7 in)
1940	83.3 mm (3.3 in)
1941	113.3 mm (4.5 in)
1942	25.9 mm (1.0 in)
1943	164.8 mm (6.5 in)
1944	108.7 mm (4.3 in)
1945	169.4 mm (6.7 in)
1946	65.5 mm (2.6 in)
1947	31.5 mm (1.2 in)
1948	39.1 mm (1.5 in)
1949	67.1 mm (2.6 in)
1950	54.1 mm (2.1 in)
1951	73.9 mm (2.9 in)
1952	115.3 mm (4.5 in)
1953	27.2 mm (1.1 in)
1954	85.6 mm (3.4 in)
1955	38.4 mm (1.5 in)
1956	206.5 mm (8.1 in)
1957	73.7 mm (2.9 in)
1958	69.6 mm (2.7 in)
1959	72.4 mm (2.9 in)
1960	43.4 mm (1.7 in)
1961	64.8 mm (2.6 in)
1962	96.5 mm (3.8 in)
1963	76.2 mm (3.0 in)
1964	56.4 mm (2.2 in)
1965	92.2 mm (3.6 in)
1966	117.6 mm (4.6 in)
1967	69.6 mm (2.7 in)
1968	91.7 mm (3.6 in)
1969	199.4 mm (7.9 in)
1970	87.6 mm (3.4 in)
1971	77.0 mm (3.0 in)
1972	39.9 mm (1.6 in)
1973	121.2 mm (4.8 in)
1974	92.2 mm (3.6 in)
1975	40.1 mm (1.6 in)
1976	55.4 mm (2.2 in)
1977	70.4 mm (2.8 in)
1978	105.4 mm (4.1 in)
1979	72.4 mm (2.9 in)
1980	113.3 mm (4.5 in)
1981	69.9 mm (2.8 in)
1982	76.7 mm (3.0 in)
1983	83.8 mm (3.3 in)
1984	51.6 mm (2.0 in)
1985	47.8 mm (1.9 in)
1986	97.5 mm (3.8 in)
1987	88.9 mm (3.5 in)
1988	93.2 mm (3.7 in)
1989	50.3 mm (2.0 in)
1990	60.2 mm (2.4 in)
1991	111.8 mm (4.4 in)
1992	72.6 mm (2.9 in)
1993	152.9 mm (6.0 in)
1994	34.0 mm (1.3 in)
1995	115.3 mm (4.5 in)
1996	118.6 mm (4.7 in)
1997	54.6 mm (2.1 in)
1998	92.5 mm (3.6 in)
1999	24.9 mm (1.0 in)
2000	72.4 mm (2.9 in)
2001	97.3 mm (3.8 in)
2002	59.7 mm (2.4 in)
2003	103.6 mm (4.1 in)
2004	108.7 mm (4.3 in)
2005	129.8 mm (5.1 in)
2006	94.7 mm (3.7 in)
2007	41.4 mm (1.6 in)
2008	154.9 mm (6.1 in)
2009	76.5 mm (3.0 in)
2010	81.5 mm (3.2 in)
2011	58.4 mm (2.3 in)
2012	45.0 mm (1.8 in)
2013	18.8 mm (0.7 in)
2014	49.3 mm (1.9 in)
2015	40.1 mm (1.6 in)
2016	63.2 mm (2.5 in)
2017	87.6 mm (3.4 in)
2018	36.8 mm (1.4 in)
2019	96.8 mm (3.8 in)
2020	42.9 mm (1.7 in)
2021	86.9 mm (3.4 in)
2022	63.8 mm (2.5 in)
2023	113.5 mm (4.5 in)
2024	146.3 mm (5.8 in)
2025	79.2 mm (3.1 in)
2026	68.3 mm (2.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Gabriel Canyon Ph, 1917 to 2026. The record is 392.9 mm (15.5 in) in 1980, marked on the chart; the median year is 120.5 mm (4.7 in).

Wettest five days (Rx5day) at San Gabriel Canyon Ph by year
Year	Wettest five days (Rx5day)
1917	95.0 mm (3.7 in)
1918	138.2 mm (5.4 in)
1919	73.4 mm (2.9 in)
1920	76.7 mm (3.0 in)
1921	243.3 mm (9.6 in)
1922	130.6 mm (5.1 in)
1923	51.0 mm (2.0 in)
1924	91.7 mm (3.6 in)
1925	67.9 mm (2.7 in)
1926	225.8 mm (8.9 in)
1927	281.2 mm (11.1 in)
1928	74.4 mm (2.9 in)
1929	74.4 mm (2.9 in)
1930	107.4 mm (4.2 in)
1931	119.8 mm (4.7 in)
1932	113.4 mm (4.5 in)
1933	224.3 mm (8.8 in)
1934	381.8 mm (15.0 in)
1935	19.0 mm (0.7 in)
1936	166.4 mm (6.6 in)
1937	121.7 mm (4.8 in)
1938	377.1 mm (14.8 in)
1939	139.4 mm (5.5 in)
1940	115.8 mm (4.6 in)
1941	165.7 mm (6.5 in)
1942	71.9 mm (2.8 in)
1943	333.5 mm (13.1 in)
1944	182.9 mm (7.2 in)
1945	276.2 mm (10.9 in)
1946	124.2 mm (4.9 in)
1947	51.4 mm (2.0 in)
1948	49.0 mm (1.9 in)
1949	87.4 mm (3.4 in)
1950	71.9 mm (2.8 in)
1951	130.3 mm (5.1 in)
1952	203.5 mm (8.0 in)
1953	31.5 mm (1.2 in)
1954	101.6 mm (4.0 in)
1955	64.6 mm (2.5 in)
1956	268.5 mm (10.6 in)
1957	108.0 mm (4.3 in)
1958	107.7 mm (4.2 in)
1959	86.6 mm (3.4 in)
1960	81.5 mm (3.2 in)
1961	68.0 mm (2.7 in)
1962	218.6 mm (8.6 in)
1963	118.6 mm (4.7 in)
1964	91.7 mm (3.6 in)
1965	196.0 mm (7.7 in)
1966	280.2 mm (11.0 in)
1967	206.8 mm (8.1 in)
1968	96.8 mm (3.8 in)
1969	380.7 mm (15.0 in)
1970	162.5 mm (6.4 in)
1971	167.6 mm (6.6 in)
1972	74.2 mm (2.9 in)
1973	164.1 mm (6.5 in)
1974	251.7 mm (9.9 in)
1975	85.2 mm (3.4 in)
1976	112.1 mm (4.4 in)
1977	137.4 mm (5.4 in)
1978	304.3 mm (12.0 in)
1979	115.8 mm (4.6 in)
1980	392.9 mm (15.5 in)
1981	97.7 mm (3.8 in)
1982	163.3 mm (6.4 in)
1983	259.0 mm (10.2 in)
1984	127.1 mm (5.0 in)
1985	49.1 mm (1.9 in)
1986	112.4 mm (4.4 in)
1987	88.9 mm (3.5 in)
1988	102.1 mm (4.0 in)
1989	100.9 mm (4.0 in)
1990	105.5 mm (4.2 in)
1991	229.7 mm (9.0 in)
1992	184.1 mm (7.2 in)
1993	232.3 mm (9.1 in)
1994	65.7 mm (2.6 in)
1995	255.0 mm (10.0 in)
1996	245.6 mm (9.7 in)
1997	101.8 mm (4.0 in)
1998	195.4 mm (7.7 in)
1999	42.5 mm (1.7 in)
2000	114.3 mm (4.5 in)
2001	124.5 mm (4.9 in)
2002	138.0 mm (5.4 in)
2003	128.0 mm (5.0 in)
2004	155.2 mm (6.1 in)
2005	385.2 mm (15.2 in)
2006	111.3 mm (4.4 in)
2007	48.5 mm (1.9 in)
2008	198.4 mm (7.8 in)
2009	128.8 mm (5.1 in)
2010	325.9 mm (12.8 in)
2011	84.9 mm (3.3 in)
2012	64.8 mm (2.6 in)
2013	40.2 mm (1.6 in)
2014	118.9 mm (4.7 in)
2015	42.6 mm (1.7 in)
2016	127.7 mm (5.0 in)
2017	173.4 mm (6.8 in)
2018	67.9 mm (2.7 in)
2019	173.0 mm (6.8 in)
2020	119.4 mm (4.7 in)
2021	118.6 mm (4.7 in)
2022	93.0 mm (3.7 in)
2023	175.3 mm (6.9 in)
2024	274.8 mm (10.8 in)
2025	134.9 mm (5.3 in)
2026	121.2 mm (4.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Gabriel Canyon Ph, 1917 to 2026. The record is 194 days in 1996, marked on the chart; the median year is 108 days.

Longest dry spell (CDD) at San Gabriel Canyon Ph by year
Year	Longest dry spell (CDD)
1917	63 days
1918	94 days
1919	57 days
1920	125 days
1921	124 days
1922	147 days
1923	120 days
1924	165 days
1925	120 days
1926	83 days
1927	172 days
1928	113 days
1929	90 days
1930	136 days
1931	61 days
1932	116 days
1933	78 days
1934	83 days
1935	59 days
1936	62 days
1937	70 days
1938	117 days
1939	47 days
1940	54 days
1941	66 days
1942	103 days
1943	137 days
1944	144 days
1945	50 days
1946	143 days
1947	69 days
1948	106 days
1949	150 days
1950	94 days
1951	98 days
1952	142 days
1953	160 days
1954	137 days
1955	165 days
1956	104 days
1957	92 days
1958	104 days
1959	178 days
1960	157 days
1961	106 days
1962	115 days
1963	46 days
1964	100 days
1965	55 days
1966	113 days
1967	76 days
1968	46 days
1969	117 days
1970	145 days
1971	128 days
1972	50 days
1973	155 days
1974	75 days
1975	110 days
1976	45 days
1977	69 days
1978	127 days
1979	134 days
1980	193 days
1981	120 days
1982	68 days
1983	58 days
1984	56 days
1985	92 days
1986	114 days
1987	57 days
1988	113 days
1989	104 days
1990	96 days
1991	96 days
1992	102 days
1993	126 days
1994	130 days
1995	137 days
1996	194 days
1997	98 days
1998	66 days
1999	157 days
2000	117 days
2001	129 days
2002	98 days
2003	94 days
2004	181 days
2005	135 days
2006	46 days
2007	90 days
2008	83 days
2009	121 days
2010	105 days
2011	139 days
2012	139 days
2013	152 days
2014	89 days
2015	63 days
2016	162 days
2017	127 days
2018	134 days
2019	117 days
2020	171 days
2021	70 days
2022	111 days
2023	68 days
2024	164 days
2025	105 days
2026	121 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

98 years, 1920 to 2025

A day with at least 74.9 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 211.2 mm (8.3 in) of rain is expected about once in 100 years.

Rainfall return levels at San Gabriel Canyon Ph: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	74.9 mm (2.9 in)
5 years	109.8 mm (4.3 in)
10 years	133.5 mm (5.3 in)
25 years	164.2 mm (6.5 in)
50 years	187.6 mm (7.4 in)
100 years	211.2 mm (8.3 in)	Longer than the 98 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, 98 years of values from 1920 to 2025.

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: 209.6 mm (8.3 in) in 1933; 206.5 mm (8.1 in) in 1956; 199.4 mm (7.9 in) in 1969.

Download the Data

Data for San Gabriel Canyon Ph standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Gabriel Canyon Ph 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).