Los Angeles September 21 Weather Records

Daily averages and all-time records for weather in Los Angeles, California for the date of September 21.
September 21 All-Time Records
1906–2024
Highest temperature 106 °F 1939
Lowest temperature 53 °F 1944
Lowest daily high 68 °F 2010
Highest daily low 81 °F 1939
Most precipitation 0.24 inches 2007
September 21 Average Weather
1991–2020 1
Average high 75.7 °F
Average low 63.0 °F
Chance precipitation 2.4%
Los Angeles September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 71 63 0.00 n/a
2022 77 63 0.00 n/a
2021 82 64 0.00 n/a
2020 73 64 0.00 n/a
2019 81 65 0.00 n/a
2018 74 65 0.00 n/a
2017 71 62 0.02 n/a
2016 79 67 0.00 n/a
2015 84 71 0.00 n/a
2014 77 64 0.00 n/a
2013 72 64 0.00 0.0
2012 80 66 0.00 n/a
2011 69 61 0.00 n/a
2010 68 61 0.00 n/a
2009 71 62 0.00 n/a
2008 71 61 0.00 n/a
2007 77 57 0.24 n/a
2006 73 60 0.00 n/a
2005 72 58 0.00 n/a
2004 87 57 0.00 n/a
2003 71 61 0.00 n/a
2002 69 59 0.00 n/a
2001 69 62 0.00 n/a
2000 72 65 0.00 n/a
1999 85 64 0.00 n/a
1998 73 66 0.01 n/a
1997 79 64 0.00 n/a
1996 72 63 0.00 0.0
1995 73 63 0.00 0.0
1994 73 62 0.00 0.0
1993 72 62 0.00 0.0
1992 74 63 0.00 0.0
1991 72 62 0.00 0.0
1990 77 64 0.00 0.0
1989 84 61 0.00 0.0
1988 69 58 0.00 0.0
1987 82 64 0.00 0.0
1986 72 55 0.00 0.0
1985 78 62 0.00 0.0
1984 78 68 0.00 0.0
1983 81 70 0.00 0.0
1982 79 62 0.00 0.0
1981 77 63 0.00 0.0
1980 73 60 0.00 0.0
1979 78 65 0.00 0.0
1978 93 60 0.00 0.0
1977 78 61 0.00 0.0
1976 72 66 0.00 0.0
1975 75 64 0.00 0.0
1974 71 61 0.00 0.0
1973 74 59 0.00 0.0
1972 87 63 0.00 0.0
1971 73 64 0.00 0.0
1970 73 60 0.00 0.0
1969 73 61 0.00 0.0
1968 71 57 0.00 0.0
1967 81 65 0.00 0.0
1966 76 62 0.00 0.0
1965 87 60 0.00 0.0
1964 74 61 0.00 0.0
1963 78 63 0.00 0.0
1962 73 58 0.00 0.0
1961 69 64 0.00 0.0
1960 74 63 0.00 0.0
1959 78 65 0.00 0.0
1958 77 61 0.00 0.0
1957 73 62 0.00 0.0
1956 77 60 0.00 0.0
1955 75 62 0.00 0.0
1954 73 56 0.00 0.0
1953 72 56 0.00 0.0
1952 83 63 0.00 0.0
1951 79 62 0.00 0.0
1950 79 60 0.00 0.0
1949 70 62 0.00 0.0
1948 71 58 0.00 0.0
1947 75 63 0.00 0.0
1946 75 60 0.00 0.0
1945 72 62 0.00 0.0
1944 73 53 0.00 0.0
1943 90 59 0.00 n/a
1942 91 65 0.00 n/a
1941 82 56 0.00 n/a
1940 75 58 0.00 n/a
1939 106 81 0.00 n/a
1938 90 66 0.00 n/a
1937 73 62 0.00 0.0
1936 80 64 0.00 0.0
1935 78 61 0.00 0.0
1934 73 63 0.00 n/a
1933 75 54 0.00 n/a
1932 73 61 0.00 n/a
1931 91 65 0.00 n/a
1930 71 57 0.00 n/a
1929 75 62 0.00 n/a
1928 81 58 0.00 n/a
1927 83 62 0.00 n/a
1926 82 58 0.00 n/a
1925 84 57 0.00 0.0
1924 80 56 0.00 0.0
1923 80 62 0.00 n/a
1922 87 61 0.00 n/a
1921 76 55 0.00 0.0
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 n/a n/a n/a n/a
1913 85 62 0.00 n/a
1912 87 65 0.00 n/a
1911 84 57 0.00 n/a
1910 85 58 n/a n/a
1909 76 55 0.00 n/a
1908 n/a n/a 0.00 n/a
1907 n/a n/a 0.00 n/a
1906 82 60 n/a n/a
What's the all-time high for Los Angeles on 9/21?
For the date of Sep 21, the highest temperature ever reached in Los Angeles history is 106 °F which happened in 1939.
Highest Temperatures in Los Angeles on September 21
Rank Temperature Year
1 106 °F 1939
2 93 °F 1978
3 91 °F 1942
3 91 °F 1931
5 90 °F 1938
5 90 °F 1943
7 87 °F 1912
7 87 °F 2004
7 87 °F 1965
7 87 °F 1922
7 87 °F 1972
What's the all-time low for Los Angeles on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Los Angeles history is 53 °F which happened in 1944.
Lowest Temperatures in Los Angeles on September 21
Rank Temperature Year
1 53 °F 1944
2 54 °F 1933
3 55 °F 1986
3 55 °F 1921
3 55 °F 1909
6 56 °F 1924
6 56 °F 1941
6 56 °F 1954
6 56 °F 1953
10 57 °F 1925
10 57 °F 2007
10 57 °F 1911
10 57 °F 2004
10 57 °F 1968
10 57 °F 1930
Lowest High Temperatures in Los Angeles on September 21
Rank Temperature Year
1 68 °F 2010
2 69 °F 2011
2 69 °F 2001
2 69 °F 2002
2 69 °F 1961
2 69 °F 1988
7 70 °F 1949
8 71 °F 1948
8 71 °F 2003
8 71 °F 1974
8 71 °F 2009
8 71 °F 2017
8 71 °F 2008
8 71 °F 2023
8 71 °F 1930
8 71 °F 1968
What's the most it has ever rained in Los Angeles on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Los Angeles history is 0.24 inches which happened in 2007.
All-Time Most Precipitation in Los Angeles on September 21
Rank Precipitation Year
1 0.24 inches 2007
2 0.02 inches 2017
3 0.01 inches 1998
Weather Station Details
Years Station Coordinates
1945–2024 Los Angeles International Airport location
1906–1944 University of Southern California location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy