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Monthly Rainfall by Season

Downtown Los Angeles
(USC Campus)
1877-2021

Photo courtesy of Kaique Rocha & Pexels.com.


Also see:
-- Rainfall Normals & High, Low & Daily Records - Downtown Los Angeles
-- Record Wettest & Driest Seasons & Wettest Days - Downtown Los Angeles
-- Record Rainfall by Day of Year, Downtown Los Angeles, Since 1877
-- Historic Rainfall Seasons Against Average - Downtown Los Angeles

-- Monthly Rainfall by Season - Los Angeles International Airport
-- Monthly Rainfall by Season - Burbank
-- Monthly Rainfall by Season - Lancaster
-- Monthly Rainfall by Season - Long Beach
-- Monthly Rainfall by Season - Palmdale
-- Monthly Rainfall by Season - Pasadena
-- Monthly Rainfall by Season - Sandberg
-- Monthly Rainfall by Season - Santa Catalina Island
-- Monthly Rainfall by Season - Santa Clarita
-- Monthly Rainfall by Season - Santa Fe Dam (San Gabriel Valley)
-- Monthly Rainfall by Season - Santa Monica
-- Monthly Rainfall by Season - Van Nuys, Los Angeles
-- Monthly Rainfall by Season - Westwood, Los Angeles
-- Monthly Rainfall by Season - Whittier
-- Monthly Rainfall by Season - Woodland Hills, Los Angeles


Also see our current rainfall season page for this weather station.


Why our “Rainfall Season” is different than that of the National Weather Service


Quantity is measured in inches. T = Trace amount.

Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
Current Normals* 0.02 0.00 0.13 0.58 0.78 2.48 3.29 3.64 2.23 0.69 0.32 0.09 14.25
2021-2022 0.22 T --- --- --- --- --- --- --- --- --- --- 0.22 (1)
2020-2021 0.00 T 0.00 0.00 0.11 1.84 2.44 T 1.41 0.00 0.00 0.02 5.82
2019-2020 T 0.00 0.03 0.00 2.12 4.84 0.32 0.04 4.35 3.02 0.14 0.00 14.86
2018-2019 T 0.00 0.00 0.57 1.58 2.11 5.95 5.59 2.19 0.02 0.81 T 18.82
2017-2018 0.00 T 0.07 0.10 0.01 0.01 1.77 0.03 2.69 0.02 0.09 0.00 4.79
2016-2017 0.00 0.00 T 0.52 0.88 4.55 8.38 4.17 0.09 0.08 0.32 0.01 19.00
2015-2016 0.38 T 2.39 0.45 0.01 0.57 3.17 0.79 1.60 0.24 0.05 0.00 9.65
2014-2015 T 0.04 0.01 0.25 0.48 3.88 1.09 0.83 0.87 0.13 0.93 0.01 8.52
2013-2014 0.09 0.00 0.00 0.06 0.62 0.20 T 3.58 1.18 0.35 0.00 0.00 6.08
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2012-2013 0.01 0.00 T 0.02 1.03 2.16 1.18 0.20 0.54 T 0.71 0.00 5.85
2011-2012 0.00 0.00 T 1.17 1.58 1.01 1.30 0.16 1.75 1.71 0.01 0.00 8.69
2010-2011 T 0.00 T 0.94 0.53 10.23 0.79 3.29 3.96 T 0.45 0.01 20.20
2009-2010 0.00 0.00 0.00 2.07 0.01 2.89 4.94 4.27 0.48 1.65 0.05 0.00 16.36
2008-2009 0.00 0.00 T 0.02 1.85 2.79 0.34 3.57 0.33 0.03 T 0.15 9.08
2007-2008 T T 0.52 0.95 0.56 1.73 7.97 1.64 0.01 0.04 0.11 0.00 13.53
2006-2007 T 0.00 T 0.34 0.16 0.81 0.19 0.92 0.05 0.74 0.00 0.00 3.21
2005-2006 T 0.00 0.29 1.35 0.22 1.03 2.06 2.37 2.87 2.15 0.85 T 13.19
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2004-2005 T 0.00 T 4.56 0.20 8.77 9.32 11.02 2.14 1.05 0.19 T 37.25
2003-2004 T T 0.00 0.53 0.79 1.35 0.47 4.89 1.17 0.04 0.00 0.00 9.24
2002-2003 0.00 T T 0.05 2.43 3.31 T 4.64 4.32 0.71 1.02 0.01 16.49
2001-2002 T 0.00 0.00 0.06 1.42 1.38 0.80 0.29 0.32 0.09 0.05 0.01 4.42
2000-2001 0.00 0.07 0.15 0.98 T T 5.59 8.87 1.17 1.11 0.00 T 17.94
1999-2000 T 0.00 T 0.00 0.44 0.40 0.88 5.54 2.82 1.49 T 0.00 11.57
1998-1999 0.00 0.00 0.01 0.00 1.32 0.54 1.85 0.56 1.24 2.57 0.02 0.98 9.09
1997-1998 0.00 0.00 0.45 0.00 2.06 2.52 4.12 13.68 4.06 0.97 3.10 0.05 31.01
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1996-1997 0.00 0.00 0.00 1.06 1.59 4.09 5.58 0.08 0.00 0.00 0.00 0.00 12.40
1995-1996 0.02 0.00 0.00 0.00 0.09 1.34 3.16 4.94 2.16 0.71 0.04 0.00 12.46
1994-1995 0.00 0.00 0.00 0.19 0.61 1.35 12.56 1.30 6.98 0.58 0.18 0.60 24.35
1993-1994 0.00 0.00 0.00 0.16 0.66 0.78 0.33 3.21 1.86 0.83 0.28 0.00 8.11
1992-1993 0.08 0.00 0.00 0.70 0.00 4.68 11.77 6.61 2.74 0.00 0.02 0.76 27.36
1991-1992 0.13 0.00 0.09 0.37 0.00 3.22 1.74 7.96 7.12 0.33 0.04 0.00 21.00
1990-1991 0.00 0.02 0.00 0.00 0.19 0.00 1.17 4.13 5.92 0.03 0.00 0.01 11.47
1989-1990 0.00 0.00 0.35 0.43 0.29 0.00 1.24 3.12 0.17 0.58 1.17 0.00 7.35
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1988-1989 0.00 0.05 0.04 0.00 0.70 3.80 0.73 1.90 0.81 0.00 0.05 0.00 8.08
1987-1988 0.01 0.00 0.09 2.37 1.13 1.84 1.65 1.72 0.26 3.41 0.00 0.00 12.48
1986-1987 0.18 0.00 1.97 0.53 0.94 0.37 1.39 1.22 0.95 0.06 0.00 0.05 7.66
1985-1986 0.00 0.00 0.19 0.42 2.91 0.33 2.19 6.10 5.27 0.45 0.00 0.00 17.86
1984-1985 0.00 0.40 0.23 0.15 1.44 5.53 0.71 2.84 1.29 0.00 0.23 0.00 12.82
1983-1984 0.00 0.79 1.99 0.75 2.52 3.23 0.17 0.00 0.28 0.69 0.00 0.01 10.43
1982-1983 0.00 0.00 0.84 0.19 4.41 1.05 6.49 4.37 8.37 5.16 0.36 0.01 31.25
1981-1982 0.00 0.00 0.02 0.49 1.80 0.48 2.17 0.70 3.54 1.39 0.12 0.00 10.71
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1980-1981 0.00 0.00 0.00 0.00 0.00 0.85 2.02 1.48 4.10 0.53 0.00 0.00 8.98
1979-1980 0.00 0.01 T 0.77 0.21 0.51 7.50 12.75 4.79 0.31 0.13 0.00 26.98
1978-1979 0.00 0.00 0.39 0.05 2.28 1.45 6.59 3.06 5.85 0.00 0.00 0.00 19.67
1977-1978 0.00 2.26 0.00 0.00 0.08 4.70 7.70 8.91 8.02 1.77 0.00 0.00 33.44
1976-1977 0.00 0.08 2.82 0.24 0.49 0.75 2.84 0.17 1.89 0.00 3.03 0.00 12.31
1975-1976 0.00 0.00 0.00 0.27 0.00 0.32 0.00 3.71 1.81 0.84 0.05 0.22 7.22
1974-1975 0.00 0.00 0.00 0.58 0.07 3.59 0.12 3.54 4.83 1.53 0.09 0.00 14.35
1973-1974 0.00 0.00 0.00 0.12 1.68 0.67 8.35 0.14 3.78 0.10 0.08 0.00 14.92
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1972-1973 0.00 0.35 0.02 0.29 3.26 2.36 4.39 7.89 2.70 0.00 T 0.00 21.26
1971-1972 T 0.00 T 0.04 0.30 6.57 0.00 0.13 T 0.03 0.03 0.07 7.17
1970-1971 0.00 0.00 0.00 0.00 5.05 4.92 0.43 0.67 0.53 0.50 0.22 0.00 12.32
1969-1970 0.03 0.00 T 0.00 1.11 0.06 1.59 2.58 2.36 0.00 0.00 0.04 7.77
1968-1969 0.01 0.11 0.03 0.55 0.37 1.28 14.94 8.03 1.49 0.63 0.03 T 27.47
1967-1968 0.00 T 1.02 0.00 8.67 1.66 0.90 0.49 3.34 0.49 0.00 0.01 16.58
1966-1967 T T 0.30 0.06 4.07 5.26 5.93 0.11 2.50 3.76 0.01 0.00 22.00
1965-1966 T 0.01 1.80 0.00 9.68 5.73 0.96 1.51 0.53 0.00 0.22 0.00 20.44
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1964-1965 T 0.00 0.00 0.33 1.72 2.05 0.84 0.23 2.49 6.02 0.00 0.01 13.69
1963-1964 0.00 0.02 1.31 0.57 2.15 T 1.43 T 1.79 0.33 0.01 0.32 7.93
1962-1963 0.00 0.00 0.00 0.12 T T 0.52 2.88 2.78 1.94 T 0.14 8.38
1961-1962 T 0.03 0.05 T 2.02 1.44 2.56 11.57 1.10 T 0.02 T 18.79
1960-1961 0.00 0.00 T 0.01 2.40 0.15 1.28 0.15 0.57 0.29 T T 4.85
1959-1960 T T 0.01 T 0.07 1.09 2.94 2.26 0.31 1.45 0.05 T 8.18
1958-1959 T 0.39 0.07 0.06 T T 1.24 3.32 0.00 0.50 T T 5.58
1957-1958 T T 0.00 1.51 0.51 2.14 2.08 6.46 5.30 3.09 0.04 0.00 21.13
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1956-1957 0.00 T 0.00 0.12 0.00 0.34 4.41 1.47 1.02 1.47 0.63 0.08 9.54
1955-1956 T 0.05 T T 1.68 1.11 8.39 0.59 T 3.72 0.46 T 16.00
1954-1955 T T T T 2.03 0.86 4.30 0.68 0.56 2.07 1.43 0.01 11.94
1953-1954 0.00 0.00 T T 1.11 0.08 4.60 2.98 2.99 0.13 0.02 0.08 11.99
1952-1953 T T 0.13 0.00 3.13 3.31 1.08 0.33 0.48 0.91 0.03 0.06 9.46
1951-1952 T 0.15 0.00 0.59 1.29 5.80 10.03 0.63 6.14 1.58 T T 26.21
1950-1951 0.01 0.00 0.38 0.24 1.05 0.03 2.80 1.48 0.44 1.54 0.24 T 8.21
1949-1950 T 0.01 0.01 0.01 2.18 2.72 2.57 1.67 0.87 0.56 T T 10.60
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1948-1949 T T T 0.09 T 2.20 2.43 1.41 1.40 T 0.46 T 7.99
1947-1948 0.00 0.01 0.09 0.14 0.06 1.62 T 1.29 3.07 0.78 T 0.16 7.22
1946-1947 T 0.00 0.02 0.92 6.04 3.47 0.38 0.86 0.79 T 0.11 0.02 12.61
1945-1946 T 0.04 T 0.56 0.23 5.05 0.11 1.52 3.66 0.92 0.04 T 12.13
1944-1945 T T 0.01 0.05 3.72 0.90 0.04 3.34 3.43 0.08 T 0.01 11.58
1943-1944 T 0.00 T 0.18 0.05 6.23 0.96 8.65 2.47 0.60 0.02 0.05 19.21
1942-1943 0.00 0.23 T 0.58 1.24 1.01 7.98 3.07 4.55 0.50 T 0.01 19.17
1941-1942 T 0.04 0.00 1.53 0.05 4.22 0.59 1.05 1.26 2.44 T T 11.18
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1940-1941 T 0.00 0.01 1.47 0.34 5.50 2.21 12.42 8.14 2.67 T ---(2) 32.76(3)
1939-1940 T 0.01 5.67 0.13 0.08 0.38 4.33 5.43 1.55 1.36 0.02 T 18.96
1938-1939 0.00 T ---(2) 0.01 T 7.26 2.96 1.13 1.44 0.24 0.02 T 13.06(3)
1937-1938 0.00 0.00 0.00 0.01 0.00 3.54 1.63 9.81 7.94 0.48 0.02 T 23.43
1936-1937 0.01 0.02 0.03 1.25 0.05 6.63 1.99 7.87 4.04 0.24 0.28 0.00 22.41
1935-1936 T 0.11 T 0.05 1.24 0.42 0.51 7.25 1.34 0.95 0.00 0.20 12.07
1934-1935 T 0.01 0.13 2.31 2.79 3.75 2.91 2.23 4.31 3.19 0.03 T 21.66
1933-1934 T 0.01 0.00 0.34 0.04 8.48 3.22 2.04 0.01 T 0.00 0.41 14.55
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1932-1933 T 0.00 0.14 0.08 0.00 1.77 8.46 0.00 0.15 0.56 0.21 0.47 11.84
1931-1932 0.00 0.02 0.24 0.06 1.95 5.95 2.94 5.33 0.01 0.30 0.02 0.13 16.95
1930-1931 0.00 0.00 0.01 0.10 1.71 0.00 3.90 3.25 T 3.02 0.52 0.02 12.53
1929-1930 0.00 0.00 0.32 T 0.00 0.00 6.55 0.45 3.99 0.15 1.04 T 12.50
1928-1929 0.00 T 0.00 0.29 1.67 2.70 1.20 2.15 2.51 1.99 T 0.15 12.66
1927-1928 T T T 2.04 0.61 3.09 0.02 1.43 1.99 0.29 0.29 0.01 9.77
1926-1927 T T 0.00 ---(2) 3.40 1.15 1.09 9.03 2.07 0.70 T T 17.44(3)
1925-1926 T 0.00 0.00 0.74 0.68 2.45 3.06 2.70 0.22 7.53 0.18 T 17.56
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1924-1925 0.00 0.00 T 0.63 1.14 1.10 0.20 0.53 1.56 1.90 0.32 ---(2) 7.38(3)
1923-1924 T T 0.55 0.04 0.04 0.80 0.36 0.03 3.42 1.43 0.00 0.00 6.67
1922-1923 T 0.00 0.00 0.24 1.44 3.09 1.76 0.75 0.32 1.97 0.00 0.02 9.59
1921-1922 T T 0.62 0.59 0.05 7.90 4.64 3.47 1.64 0.10 0.65 T 19.66
1920-1921 T 0.00 0.04 0.76 1.15 1.01 3.28 0.86 2.75 0.28 3.57 0.01 13.71
1919-1920 0.00 T 1.29 0.56 0.46 1.99 0.50 2.37 4.25 1.00 0.10 T 12.52
1918-1919 0.09 0.03 0.55 T 1.85 1.54 0.96 1.02 2.18 0.17 0.19 0.00 8.58
1917-1918 T T T 0.00 0.36 0.07 0.50 6.14 6.21 0.15 0.40 0.03 13.86
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1916-1917 0.00 T 0.77 2.71 0.09 3.67 2.68 4.49 0.18 0.46 0.21 0.00 15.26
1915-1916 0.00 0.00 T 0.00 1.35 2.52 13.30 1.82 0.90 T 0.03 0.00 19.92
1914-1915 0.01 0.00 0.00 0.31 0.20 3.73 5.42 5.09 0.60 0.81 0.88 T 17.05
1913-1914 T T 0.03 T 3.00 1.66 10.35 7.04 0.58 0.47 0.43 0.09 23.65
1912-1913 T 0.00 0.00 0.56 0.35 0.03 2.01 9.16 0.33 0.35 0.05 0.58 13.42
1911-1912 T 0.00 1.23 0.16 0.10 1.27 0.07 0.00 6.99 1.66 0.12 0.00 11.60
1910-1911 0.04 T 0.01 0.82 0.15 0.07 6.70 2.91 5.15 0.28 0.02 0.03 16.18
1909-1910 0.00 T 0.04 0.28 1.51 7.00 1.53 0.11 1.86 0.30 0.00 0.00 12.63
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1908-1909 T 0.08 1.22 0.25 1.08 1.46 7.27 5.20 2.51 T 0.00 0.11 19.18
1907-1908 0.00 0.00 T 1.19 T 0.88 5.04 3.66 0.18 0.52 0.25 0.00 11.72
1906-1907 0.02 0.03 0.05 0.00 0.85 5.12 7.02 1.83 4.12 0.16 0.07 0.03 19.30
1905-1906 0.00 0.00 T 0.08 2.98 0.20 3.85 2.47 7.35 0.69 1.02 0.01 18.65
1904-1905 T 0.17 0.28 0.69 0.00 2.45 2.57 6.06 6.00 0.35 0.95 0.00 19.52
1903-1904 0.00 T 0.43 T 0.00 T 0.14 2.68 4.50 0.97 T T 8.72
1902-1903 T T T 0.40 2.08 2.50 2.10 1.52 6.93 3.77 T 0.02 19.32
1901-1902 T 0.09 0.03 1.88 0.46 0.00 1.62 3.35 2.98 0.16 0.03 T 10.60
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1900-1901 T T T 0.26 6.53 T 2.49 4.38 0.45 0.68 1.50 T 16.29
1899-1900 0.00 0.01 T 1.59 0.90 0.90 1.17 T 0.99 0.54 1.81 T 7.91
1898-1899 0.07 T 0.02 0.09 T 0.12 2.64 0.04 1.81 0.18 0.04 0.58 5.59
1897-1898 T 0.00 0.00 2.47 0.01 0.05 1.26 0.51 0.98 0.03 1.75 T 7.06
1896-1897 0.02 0.01 T 1.30 1.66 2.12 3.70 5.62 2.31 0.02 0.10 T 16.86
1895-1896 T T T 0.24 0.80 0.78 3.23 T 2.97 0.19 0.30 T 8.51
1894-1895 T 0.01 0.73 0.02 0.00 4.62 5.84 0.46 3.77 0.46 0.19 0.01 16.11
1893-1894 0.00 0.00 T 0.75 0.20 3.65 0.94 0.49 0.37 0.13 0.20 T 6.73
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1892-1893 0.00 0.01 0.00 0.33 4.40 4.18 6.29 2.27 8.52 0.19 0.06 0.03 26.28
1891-1892 T 0.00 0.06 0.00 0.00 1.99 0.88 3.19 3.39 0.22 2.06 0.06 11.85
1890-1891 0.00 0.03 0.06 0.03 0.13 2.32 0.25 8.56 0.41 1.26 0.31 0.00 13.36
1889-1890 0.00 0.61 T 6.96 1.35 15.80 7.83 1.36 0.66 0.22 0.03 0.02 34.84
1888-1889 0.03 0.08 T 0.36 4.01 6.26 0.25 0.92 6.48 0.27 0.62 0.00 19.28
1887-1888 0.07 0.00 0.15 0.12 0.78 2.67 6.03 0.77 3.15 0.11 0.02 T 13.87
1886-1887 0.24 0.21 0.00 0.01 1.18 0.18 0.20 9.25 0.24 2.30 0.20 0.04 14.05
1885-1886 T T T 0.26 5.52 1.63 7.72 1.38 2.50 3.29 0.00 0.01 22.31
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1884-1885 T T T 0.39 1.06 4.64 1.05 T 0.01 2.00 0.06 T 9.21
1883-1884 T 0.00 0.00 1.42 0.00 2.56 3.15 13.37 12.36 3.58 0.35 1.39 38.18
1882-1883 0.00 0.00 T 0.05 1.82 0.08 1.62 3.47 2.87 0.15 2.02 0.03 12.11
1881-1882 0.00 T T 0.82 0.27 0.52 1.01 2.66 2.66 1.83 0.63 T 10.40
1880-1881 T T 0.00 0.14 0.67 8.40 1.43 0.36 1.66 0.46 0.01 0.00 13.13
1879-1880 0.00 0.00 0.00 0.93 3.44 6.53 1.33 1.56 1.45 5.06 0.04 0.00 20.34
1878-1879 0.00 T 0.00 0.14 T 4.70 3.59 0.97 0.49 1.19 0.24 0.03 11.35
1877-1878 T 0.00 0.00 0.86 0.45 3.93 3.33 7.68 2.57 1.71 0.66 0.07 21.26

* Most current month and season normals, recalculated every ten years, were updated on May 4, 2021.

T = Trace amount
(1) Seasonal rainfall through latest full month.
(2) This month was missing as many as 26 days or more of rain data.
(3) Due to one or more months of missing data for this season, the accumulated number cannot reflect a complete season total.

Source: National Weather Service