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Monthly Rainfall by Season

Downtown Los Angeles
(USC Campus)
1877-2020

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
Rainfall by Season Compared to Running 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 - Woodland Hills, Los Angeles

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


Quantity is measured in inches

Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
Avg.* 0.01 0.05 0.24 0.52 1.26 2.48 3.10 3.23 2.54 1.00 0.31 0.06 14.37
2019-2020 T 0.00 0.03 0.00 2.12 4.84 Now --- --- --- --- --- 6.99 (1)
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

* Monthly and season average since 1877.
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.

Source: National Weather Service