Every September in Los Angeles Airport, CA from 1944 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.
| Year | Mean, °F | Rank | High, °F | Rank | Low, °F | Rank | Precipitation, in | Rank | Days missing |
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| 2026 | 74.5 | 5 | 80.8 | 9 | 68.3 | 4 | 0.65 | 7 | 0 |
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| 2025 | 71.6 | 17 | 76.8 | 30 | 66.4 | 9 | 0.04 | 28 | 0 |
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| 2024 | 69.6 | 38 | 75.6 | 44 | 63.6 | 29 | trace | 43 | 0 |
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| 2023 | 69.7 | 37 | 75.3 | 48 | 64.1 | 25 | 0.05 | 26 | 0 |
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| 2022 | 76 | 2 | 83.2 | 2 | 68.8 | 3 | 0.13 | 16 | 0 |
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| 2021 | 68.4 | 53 | 74.4 | 61 | 62.4 | 50 | trace | 43 | 0 |
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| 2020 | 70.8 | 23 | 78 | 20 | 63.7 | 28 | 0.00 | 71 | 0 |
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| 2019 | 73.4 | 9 | 80.2 | 10 | 66.6 | 7 | trace | 43 | 0 |
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| 2018 | 70.2 | 30 | 75.7 | 42 | 64.6 | 19 | 0.00 | 71 | 0 |
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| 2017 | 71.5 | 19 | 78.5 | 19 | 64.6 | 19 | 0.08 | 21 | 0 |
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| 2016 | 71.1 | 20 | 77.7 | 23 | 64.4 | 23 | 0.01 | 37 | 0 |
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| 2015 | 75.1 | 3 | 81.2 | 8 | 69 | 2 | 1.81 | 3 | 0 |
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| 2014 | 73 | 10 | 78.9 | 15 | 67.1 | 6 | 0.02 | 36 | 0 |
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| 2013 | 70.2 | 30 | 76.7 | 32 | 63.6 | 29 | 0.00 | 71 | 0 |
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| 2012 | 72.2 | 15 | 78.7 | 16 | 65.8 | 13 | trace | 43 | 0 |
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| 2011 | 66.9 | 75 | 72.1 | 80 | 61.8 | 57 | 0.01 | 37 | 0 |
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| 2010 | 66.8 | 76 | 73.2 | 71 | 60.4 | 71 | 0.00 | 71 | 0 |
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| 2009 | 69.9 | 35 | 76 | 37 | 63.8 | 27 | trace | 43 | 0 |
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| 2008 | 68.6 | 50 | 73.7 | 69 | 63.6 | 29 | trace | 43 | 0 |
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| 2007 | 68.3 | 55 | 74 | 63 | 62.6 | 48 | 0.49 | 8 | 0 |
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| 2006 | 68.8 | 48 | 74.6 | 56 | 63.1 | 41 | trace | 43 | 0 |
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| 2005 | 67.6 | 67 | 74.7 | 55 | 60.4 | 71 | 0.25 | 14 | 0 |
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| 2004 | 72.5 | 13 | 79.8 | 11 | 65.2 | 16 | trace | 43 | 0 |
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| 2003 | 67.8 | 59 | 73.1 | 74 | 62.4 | 50 | 0.00 | 71 | 0 |
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| 2002 | 67.6 | 67 | 74 | 63 | 61.1 | 63 | 0.08 | 21 | 0 |
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| 2001 | 67.8 | 59 | 73.6 | 70 | 62.1 | 54 | 0.00 | 71 | 0 |
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| 2000 | 69.6 | 38 | 76.6 | 33 | 62.7 | 45 | 0.03 | 32 | 0 |
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| 1999 | 67.8 | 59 | 72.9 | 75 | 62.7 | 45 | 0.00 | 71 | 0 |
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| 1998 | 70.4 | 27 | 76 | 37 | 64.8 | 17 | 0.01 | 37 | 0 |
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| 1997 | 74.7 | 4 | 81.9 | 5 | 67.5 | 5 | 0.27 | 12 | 0 |
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| 1996 | 69.1 | 44 | 74.8 | 54 | 63.3 | 38 | 0.00 | 71 | 0 |
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| 1995 | 70.7 | 24 | 78 | 20 | 63.4 | 36 | trace | 43 | 0 |
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| 1994 | 70.6 | 26 | 77.7 | 23 | 63.6 | 29 | 0.00 | 71 | 0 |
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| 1993 | 69 | 45 | 75.9 | 39 | 62.1 | 54 | trace | 43 | 0 |
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| 1992 | 70.7 | 24 | 77.8 | 22 | 63.6 | 29 | 0.00 | 71 | 0 |
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| 1991 | 67.8 | 59 | 73.2 | 71 | 62.3 | 52 | 0.09 | 19 | 0 |
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| 1990 | 71 | 21 | 77.7 | 23 | 64.2 | 24 | trace | 43 | 0 |
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| 1989 | 68.2 | 56 | 75.4 | 46 | 61.1 | 63 | 0.26 | 13 | 0 |
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| 1988 | 67.7 | 65 | 74.3 | 62 | 61 | 67 | 0.07 | 24 | 0 |
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| 1987 | 69.6 | 38 | 75.9 | 39 | 63.3 | 38 | 0.08 | 21 | 0 |
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| 1986 | 65.8 | 80 | 72 | 81 | 59.5 | 79 | 1.44 | 4 | 0 |
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| 1985 | 68.6 | 50 | 74.6 | 56 | 62.7 | 45 | 0.28 | 11 | 0 |
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| 1984 | 76.5 | 1 | 83.4 | 1 | 69.5 | 1 | 0.09 | 19 | 0 |
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| 1983 | 72.4 | 14 | 79 | 14 | 65.8 | 13 | 1.91 | 1 | 0 |
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| 1982 | 71.6 | 17 | 78.6 | 17 | 64.6 | 19 | 0.78 | 6 | 0 |
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| 1981 | 69.6 | 38 | 75.6 | 44 | 63.6 | 29 | 0.05 | 26 | 0 |
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| 1980 | 67 | 74 | 72.7 | 77 | 61.3 | 60 | trace | 43 | 0 |
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| 1979 | 73.8 | 7 | 81.5 | 7 | 66.1 | 11 | 0.04 | 28 | 0 |
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| 1978 | 73.6 | 8 | 82.4 | 4 | 64.8 | 17 | 0.39 | 10 | 0 |
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| 1977 | 68.7 | 49 | 74.5 | 58 | 62.8 | 43 | trace | 43 | 0 |
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| 1976 | 70.4 | 27 | 74.5 | 58 | 66.3 | 10 | 1.85 | 2 | 0 |
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| 1975 | 70.2 | 30 | 77 | 28 | 63.4 | 36 | trace | 43 | 0 |
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| 1974 | 68.9 | 46 | 75.1 | 51 | 62.8 | 43 | trace | 43 | 0 |
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| 1973 | 67.5 | 71 | 74 | 63 | 61.1 | 63 | trace | 43 | 0 |
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| 1972 | 69.8 | 36 | 75.7 | 42 | 63.9 | 26 | 0.03 | 32 | 0 |
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| 1971 | 70.9 | 22 | 77.1 | 27 | 64.6 | 19 | trace | 43 | 0 |
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| 1970 | 69.2 | 43 | 76.8 | 30 | 61.5 | 58 | trace | 43 | 0 |
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| 1969 | 67.1 | 73 | 71.9 | 82 | 62.3 | 52 | 0.01 | 37 | 0 |
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| 1968 | 68.6 | 50 | 74.5 | 58 | 62.6 | 48 | 0.00 | 71 | 0 |
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| 1967 | 71.9 | 16 | 77.3 | 26 | 66.6 | 7 | 0.44 | 9 | 0 |
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| 1966 | 69.6 | 38 | 76.1 | 36 | 63 | 42 | 0.19 | 15 | 0 |
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| 1965 | 68 | 58 | 75.1 | 51 | 60.9 | 69 | 0.11 | 17 | 0 |
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| 1964 | 66.7 | 77 | 73.2 | 71 | 60.2 | 74 | trace | 43 | 0 |
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| 1963 | 74.5 | 5 | 83.2 | 2 | 65.9 | 12 | 1.13 | 5 | 0 |
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| 1962 | 67.7 | 65 | 73.9 | 67 | 61.5 | 58 | trace | 43 | 0 |
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| 1961 | 68.1 | 57 | 75.1 | 51 | 61.1 | 63 | 0.04 | 28 | 0 |
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| 1960 | 70 | 34 | 76.6 | 33 | 63.3 | 38 | trace | 43 | 0 |
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| 1959 | 72.8 | 11 | 79.7 | 12 | 65.8 | 13 | 0.04 | 28 | 0 |
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| 1958 | 72.7 | 12 | 81.8 | 6 | 63.6 | 29 | 0.03 | 32 | 0 |
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| 1957 | 68.9 | 46 | 76.6 | 33 | 61.3 | 60 | 0.00 | 71 | 0 |
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| 1956 | 70.1 | 33 | 79.4 | 13 | 60.8 | 70 | 0.00 | 71 | 0 |
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| 1955 | 70.4 | 27 | 78.6 | 17 | 62.1 | 54 | trace | 43 | 0 |
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| 1954 | 67.8 | 59 | 75.8 | 41 | 59.8 | 77 | trace | 43 | 0 |
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| 1953 | 65.3 | 82 | 72.2 | 79 | 58.4 | 82 | trace | 43 | 0 |
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| 1952 | 67.8 | 59 | 75.3 | 48 | 60.4 | 71 | 0.06 | 25 | 0 |
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| 1951 | 67.4 | 72 | 73.8 | 68 | 61 | 67 | trace | 43 | 0 |
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| 1950 | 66 | 79 | 72.6 | 78 | 59.5 | 79 | 0.11 | 17 | 0 |
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| 1949 | 67.6 | 67 | 75.2 | 50 | 59.9 | 76 | 0.01 | 37 | 0 |
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| 1948 | 65.7 | 81 | 74 | 63 | 57.3 | 83 | trace | 43 | 0 |
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| 1947 | 67.6 | 67 | 75.4 | 46 | 59.8 | 77 | 0.03 | 32 | 0 |
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| 1946 | 68.4 | 53 | 77 | 28 | 60.1 | 75 | 0.01 | 37 | 2 |
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| 1945 | | | | | 61.3 | 60 | trace | 43 | 6 |
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| 1944 | 66.1 | 78 | 72.8 | 76 | 59.5 | 79 | trace | 43 | 1 |
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