Every May in Burbank Glendale Pasadena, CA from 1940 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 | 66.1 | 31 | 75.3 | 42 | 56.9 | 15 | trace | 59 | 0 |
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| 2025 | 67.3 | 16 | 77 | 33 | 57.6 | 12 | 0.05 | 39 | 0 |
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| 2024 | 63.1 | 60 | 71.3 | 72 | 54.8 | 36 | 0.02 | 46 | 0 |
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| 2023 | 62.5 | 66 | 69.9 | 77 | 55.1 | 30 | 0.83 | 8 | 0 |
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| 2022 | 68.2 | 12 | 77.8 | 28 | 58.5 | 6 | 0.01 | 51 | 0 |
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| 2021 | 65.9 | 34 | 75 | 47 | 56.8 | 16 | 0.01 | 51 | 0 |
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| 2020 | 69.7 | 5 | 80.5 | 11 | 58.8 | 5 | 0.30 | 17 | 0 |
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| 2019 | 61.6 | 73 | 69.5 | 78 | 53.7 | 51 | 0.89 | 7 | 0 |
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| 2018 | 64.4 | 44 | 72.8 | 63 | 56.1 | 17 | 0.11 | 30 | 0 |
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| 2017 | 66 | 33 | 76.1 | 38 | 55.8 | 21 | 0.13 | 28 | 0 |
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| 2016 | 64.2 | 47 | 72.7 | 64 | 55.7 | 22 | 0.02 | 46 | 0 |
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| 2015 | 64.1 | 48 | 72.5 | 65 | 55.7 | 22 | 0.30 | 17 | 0 |
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| 2014 | 70.5 | 4 | 81.4 | 5 | 59.7 | 3 | trace | 59 | 0 |
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| 2013 | 71.2 | 2 | 81.5 | 4 | 60.8 | 1 | 0.70 | 10 | 0 |
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| 2012 | 66.1 | 31 | 76.8 | 35 | 55.5 | 26 | trace | 59 | 0 |
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| 2011 | 63.6 | 52 | 73.8 | 59 | 53.5 | 54 | 0.38 | 13 | 0 |
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| 2010 | 63.9 | 50 | 74.1 | 53 | 53.6 | 53 | 0.08 | 34 | 0 |
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| 2009 | 68.5 | 10 | 78.9 | 20 | 58.2 | 9 | trace | 59 | 0 |
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| 2008 | 65.1 | 40 | 74.7 | 48 | 55.6 | 25 | 0.20 | 23 | 0 |
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| 2007 | 65.5 | 37 | 75.7 | 41 | 55.4 | 27 | 0.00 | 76 | 0 |
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| 2006 | 66.8 | 22 | 76.3 | 37 | 57.6 | 12 | 0.62 | 11 | 1 |
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| 2005 | 67.6 | 14 | 78 | 26 | 57.2 | 14 | 0.19 | 25 | 0 |
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| 2004 | 69 | 6 | 79.7 | 15 | 58.3 | 8 | 0.00 | 76 | 0 |
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| 2003 | 64.9 | 41 | 75.2 | 44 | 55 | 33 | 1.20 | 4 | 3 |
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| 2002 | 64 | 49 | 74.4 | 52 | 53.7 | 51 | trace | 59 | 0 |
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| 2001 | 68.9 | 7 | 79.5 | 16 | 58.4 | 7 | 0.00 | 76 | 0 |
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| 2000 | 68.3 | 11 | 78.8 | 21 | 57.7 | 11 | 0.01 | 51 | 0 |
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| 1999 | 63.2 | 58 | 72.3 | 67 | 54.1 | 45 | 0.03 | 44 | 0 |
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| 1998 | 60.6 | 79 | 70.1 | 76 | 51.3 | 76 | 4.37 | 1 | 2 |
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| 1997 | 71.1 | 3 | 82.5 | 3 | 60 | 2 | 0.00 | 76 | 2 |
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| 1996 | 67.3 | 16 | 79 | 18 | 55.7 | 22 | 0.00 | 76 | 2 |
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| 1995 | 61.3 | 76 | 69.5 | 78 | 53.2 | 58 | 0.37 | 15 | 0 |
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| 1994 | 63.3 | 56 | 73.1 | 62 | 53.5 | 54 | 0.23 | 21 | 3 |
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| 1993 | | | | | 57.9 | 10 | 0.20 | 23 | 6 |
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| 1992 | 68.8 | 8 | 78.2 | 25 | 59.4 | 4 | 0.08 | 34 | 2 |
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| 1991 | | | | | 52.5 | 64 | 0.00 | 76 | 8 |
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| 1990 | | | | | 55.2 | 29 | 0.73 | 9 | 7 |
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| 1989 | 66.3 | 28 | 77.4 | 31 | 55.3 | 28 | 0.13 | 28 | 2 |
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| 1988 | | | | | 54.9 | 35 | 0.00 | 76 | 4 |
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| 1987 | | | | | 56.1 | 17 | trace | 59 | 7 |
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| 1986 | | | | | 55.1 | 30 | 0.00 | 76 | 8 |
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| 1985 | 65.3 | 39 | 76.1 | 38 | 54.5 | 42 | 0.01 | 51 | 3 |
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| 1984 | 71.8 | 1 | 88.5 | 1 | 55.1 | 30 | 0.00 | 76 | 0 |
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| 1983 | 66.5 | 27 | 80.4 | 12 | 52.4 | 69 | 0.32 | 16 | 2 |
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| 1982 | 65.6 | 35 | 76.4 | 36 | 54.8 | 36 | 0.10 | 31 | 0 |
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| 1981 | 67.5 | 15 | 80.3 | 13 | 54.8 | 36 | 0.01 | 51 | 0 |
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| 1980 | 62.7 | 64 | 74.6 | 49 | 50.8 | 79 | 0.25 | 20 | 0 |
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| 1978 | 68.6 | 9 | 84.7 | 2 | 52.5 | 64 | 0.07 | 36 | 0 |
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| 1977 | 61.6 | 73 | 74 | 56 | 49.2 | 86 | 3.79 | 2 | 0 |
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| 1976 | 67 | 19 | 81.3 | 7 | 52.7 | 60 | 0.14 | 26 | 0 |
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| 1975 | 64.3 | 46 | 78.5 | 23 | 50 | 81 | 0.02 | 46 | 0 |
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| 1974 | 64.9 | 41 | 77.7 | 29 | 52 | 70 | 0.06 | 38 | 0 |
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| 1973 | 66.7 | 23 | 80.1 | 14 | 53.3 | 57 | 0.00 | 76 | 0 |
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| 1972 | 66.6 | 25 | 80.7 | 9 | 52.5 | 64 | trace | 59 | 0 |
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| 1971 | 62.2 | 71 | 74 | 56 | 50.4 | 80 | 0.28 | 19 | 1 |
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| 1970 | 67.1 | 18 | 81.4 | 5 | 52.7 | 60 | 0.00 | 76 | 0 |
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| 1969 | 66.7 | 23 | 78.4 | 24 | 55 | 33 | trace | 59 | 0 |
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| 1968 | | | | | 52.7 | 60 | trace | 59 | 6 |
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| 1967 | 66.2 | 30 | 79.5 | 16 | 52.9 | 59 | trace | 59 | 0 |
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| 1966 | 64.9 | 41 | 75.1 | 46 | 54.7 | 39 | 0.14 | 26 | 0 |
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| 1965 | 63.3 | 56 | 74.1 | 53 | 52.5 | 64 | trace | 59 | 0 |
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| 1964 | 61.5 | 75 | 73.5 | 60 | 49.6 | 85 | 0.04 | 40 | 0 |
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| 1963 | 62.5 | 66 | 70.3 | 75 | 54.7 | 39 | 0.01 | 51 | 0 |
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| 1962 | 61.3 | 76 | 70.7 | 74 | 51.9 | 72 | 0.38 | 13 | 0 |
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| 1961 | 62.5 | 66 | 71.5 | 70 | 53.4 | 56 | trace | 59 | 0 |
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| 1960 | 66.9 | 21 | 77.7 | 29 | 56 | 19 | 0.02 | 46 | 0 |
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| 1959 | 63.2 | 58 | 72.5 | 65 | 53.9 | 47 | trace | 59 | 0 |
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| 1958 | 67 | 19 | 78 | 26 | 56 | 19 | trace | 59 | 0 |
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| 1957 | 62.8 | 63 | 71.5 | 70 | 54.1 | 45 | 0.62 | 11 | 0 |
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| 1956 | 63.5 | 54 | 73.2 | 61 | 53.9 | 47 | 0.95 | 6 | 0 |
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| 1955 | 62.3 | 70 | 72.2 | 68 | 52.5 | 64 | 1.23 | 3 | 0 |
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| 1954 | 63.9 | 50 | 74.1 | 53 | 53.8 | 49 | 0.07 | 36 | 0 |
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| 1953 | 62.5 | 66 | 74 | 56 | 51 | 78 | 0.09 | 33 | 0 |
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| 1952 | 66.6 | 25 | 79 | 18 | 54.2 | 43 | trace | 59 | 0 |
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| 1951 | 63.6 | 52 | 75.2 | 44 | 51.9 | 72 | 0.10 | 31 | 0 |
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| 1950 | 61.3 | 76 | 71.1 | 73 | 51.5 | 75 | 0.03 | 44 | 0 |
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| 1949 | 64.4 | 44 | 74.5 | 51 | 54.2 | 43 | 0.98 | 5 | 0 |
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| 1948 | 62.9 | 61 | 75.9 | 40 | 50 | 81 | 0.04 | 40 | 0 |
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| 1947 | 65.4 | 38 | 76.9 | 34 | 53.8 | 49 | 0.21 | 22 | 0 |
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| 1946 | 61.7 | 72 | 71.7 | 69 | 51.8 | 74 | 0.04 | 40 | 0 |
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| 1945 | 62.6 | 65 | 75.3 | 42 | 50 | 81 | trace | 59 | 0 |
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| 1944 | 62.9 | 61 | 74.6 | 49 | 51.2 | 77 | 0.01 | 51 | 0 |
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| 1943 | 66.3 | 28 | 80.6 | 10 | 52 | 70 | 0.02 | 46 | 0 |
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| 1942 | 63.4 | 55 | 77.1 | 32 | 49.7 | 84 | trace | 59 | 0 |
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| 1941 | 67.7 | 13 | 80.8 | 8 | 54.6 | 41 | 0.01 | 51 | 0 |
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| 1940 | 65.6 | 35 | 78.6 | 22 | 52.6 | 63 | 0.04 | 40 | 0 |
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