Every May in Sanford, FL from 1949 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 | 80.8 | 2 | 90.9 | 8 | 70.7 | 1 | 2.77 | 34 | 0 |
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| 2025 | 80.4 | 3 | 90.8 | 9 | 70 | 3 | 8.96 | 3 | 0 |
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| 2024 | 81.2 | 1 | 91.7 | 2 | 70.6 | 2 | 1.67 | 54 | 0 |
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| 2023 | 77.1 | 34 | 86.9 | 55 | 67.2 | 18 | 4.40 | 15 | 0 |
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| 2022 | 79.1 | 8 | 89.3 | 23 | 69 | 7 | 3.57 | 24 | 0 |
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| 2021 | 77.8 | 23 | 88.2 | 39 | 67.5 | 15 | 1.38 | 58 | 0 |
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| 2020 | 77.8 | 23 | 88.4 | 34 | 67.2 | 18 | 4.36 | 17 | 0 |
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| 2019 | 79.9 | 4 | 90.2 | 12 | 69.7 | 5 | 2.54 | 38 | 0 |
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| 2018 | 76.2 | 45 | 84.5 | 74 | 67.9 | 13 | 10.46 | 2 | 0 |
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| 2017 | 79 | 9 | 90.8 | 9 | 67.3 | 16 | 2.91 | 33 | 0 |
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| 2016 | 77.6 | 29 | 88.7 | 30 | 66.6 | 20 | 3.52 | 25 | 0 |
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| 2015 | 78.9 | 10 | 89.1 | 25 | 68.7 | 10 | 1.33 | 59 | 0 |
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| 2014 | 77.6 | 29 | 87.9 | 43 | 67.3 | 16 | 3.45 | 28 | 0 |
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| 2013 | 74.8 | 65 | 84.5 | 74 | 65 | 44 | 5.24 | 9 | 0 |
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| 2012 | 78.7 | 12 | 88.6 | 32 | 68.8 | 8 | 4.38 | 16 | 0 |
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| 2011 | 78.2 | 19 | 90 | 14 | 66.3 | 25 | 0.47 | 69 | 0 |
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| 2010 | 79.4 | 7 | 89.1 | 25 | 69.6 | 6 | 2.12 | 46 | 0 |
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| 2009 | 78.7 | 12 | 88.6 | 32 | 68.8 | 8 | 17.03 | 1 | 0 |
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| 2008 | 78.5 | 17 | 89.4 | 20 | 67.7 | 14 | 1.49 | 56 | 0 |
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| 2007 | 75.6 | 51 | 86 | 62 | 65.1 | 42 | 1.16 | 62 | 0 |
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| 2006 | 78.1 | 20 | 89.7 | 16 | 66.5 | 21 | 1.26 | 61 | 0 |
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| 2005 | 76.2 | 45 | 86.2 | 58 | 66.1 | 28 | 4.72 | 13 | 0 |
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| 2004 | 78 | 21 | 89.8 | 15 | 66.1 | 28 | 1.05 | 66 | 0 |
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| 2003 | 79.9 | 4 | 90.1 | 13 | 69.8 | 4 | 3.41 | 29 | 1 |
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| 2002 | 77.2 | 32 | 88.2 | 39 | 66.3 | 25 | 1.50 | 55 | 0 |
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| 2001 | 76.5 | 40 | 87.9 | 43 | 65.2 | 38 | 2.06 | 48 | 0 |
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| 2000 | 78.7 | 12 | 91.1 | 6 | 66.4 | 22 | 0.26 | 72 | 0 |
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| 1999 | 75.3 | 56 | 86 | 62 | 64.5 | 47 | 2.08 | 47 | 0 |
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| 1998 | 78.6 | 15 | 92 | 1 | 65.2 | 38 | 0.30 | 71 | 0 |
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| 1997 | 75.1 | 59 | 85.8 | 66 | 64.1 | 53 | 2.34 | 41 | 1 |
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| 1996 | 77 | 35 | 87.9 | 43 | 66 | 30 | 4.22 | 18 | 0 |
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| 1995 | 79.5 | 6 | 91 | 7 | 68 | 12 | 3.29 | 31 | 0 |
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| 1994 | 76.3 | 42 | 88.3 | 36 | 64.3 | 49 | 2.20 | 45 | 0 |
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| 1993 | 72.5 | 77 | 84.1 | 77 | 60.9 | 74 | 3.88 | 21 | 0 |
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| 1992 | 72.7 | 76 | 84.9 | 72 | 60.6 | 76 | 3.46 | 27 | 0 |
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| 1991 | 78.3 | 18 | 87.9 | 43 | 68.7 | 10 | 7.69 | 5 | 1 |
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| 1990 | 78 | 21 | 89.6 | 17 | 66.3 | 25 | 1.03 | 67 | 0 |
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| 1989 | 75.5 | 52 | 88.3 | 36 | 62.6 | 68 | 3.81 | 23 | 1 |
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| 1988 | 71.1 | 78 | 82.5 | 78 | 59.6 | 77 | 5.11 | 10 | 0 |
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| 1987 | 74.4 | 70 | 85.3 | 69 | 63.4 | 61 | 2.43 | 39 | 0 |
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| 1986 | 74.2 | 71 | 87.5 | 52 | 60.9 | 74 | 1.81 | 50 | 2 |
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| 1985 | 75.4 | 53 | 87.8 | 48 | 62.9 | 66 | | | 2 |
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| 1984 | 74.8 | 65 | 85.4 | 68 | 64.4 | 48 | | | 1 |
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| 1983 | 74.1 | 72 | 85.1 | 70 | 63.2 | 64 | 2.29 | 43 | 0 |
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| 1982 | 73.4 | 74 | 84.4 | 76 | 62.6 | 68 | | | 1 |
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| 1981 | 74.8 | 65 | 88 | 41 | 61.5 | 72 | 1.16 | 62 | 0 |
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| 1980 | 75.3 | 56 | 85.5 | 67 | 65.2 | 38 | 4.21 | 19 | 0 |
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| 1979 | 75 | 61 | 85.1 | 70 | 65.1 | 42 | | | 3 |
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| 1978 | 75.4 | 53 | 87.2 | 53 | 63.7 | 57 | 2.66 | 37 | 0 |
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| 1977 | 72.8 | 75 | 86.1 | 60 | 59.5 | 78 | | | 0 |
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| 1976 | 74.1 | 72 | 84.7 | 73 | 63.5 | 60 | 8.54 | 4 | 0 |
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| 1975 | 77.5 | 31 | 89 | 27 | 66 | 30 | 7.11 | 6 | 0 |
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| 1974 | 76.6 | 38 | 89.2 | 24 | 64 | 55 | 3.86 | 22 | 0 |
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| 1973 | 76 | 49 | 88.9 | 29 | 63 | 65 | 4.52 | 14 | 0 |
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| 1972 | 75.1 | 59 | 86 | 62 | 64.1 | 53 | | | 0 |
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| 1971 | 76.3 | 42 | 89 | 27 | 63.6 | 58 | 4.90 | 12 | 0 |
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| 1970 | 74.6 | 69 | 86.6 | 57 | 62.7 | 67 | 2.31 | 42 | 2 |
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| 1969 | 75.4 | 53 | 86.1 | 60 | 64.7 | 45 | 1.87 | 49 | 0 |
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| 1968 | 76.3 | 42 | 88.3 | 36 | 64.3 | 49 | 2.67 | 35 | 0 |
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| 1967 | 77.7 | 27 | 91.4 | 5 | 64 | 55 | 2.67 | 35 | 1 |
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| 1966 | 76.6 | 38 | 86.8 | 56 | 66.4 | 22 | 3.93 | 20 | 1 |
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| 1965 | 75 | 61 | 88.7 | 30 | 61.4 | 73 | 0.32 | 70 | 0 |
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| 1964 | 76.1 | 47 | 87.6 | 50 | 64.6 | 46 | 1.79 | 51 | 0 |
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| 1963 | 76.7 | 37 | 87.9 | 43 | 65.4 | 37 | 5.02 | 11 | 0 |
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| 1962 | 78.6 | 15 | 91.7 | 2 | 65.5 | 36 | 1.49 | 56 | 0 |
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| 1961 | 76.1 | 47 | 88 | 41 | 64.3 | 49 | 1.12 | 65 | 0 |
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| 1960 | 74.8 | 65 | 87.6 | 50 | 62 | 71 | 0.69 | 68 | 0 |
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| 1959 | 77.2 | 32 | 88.4 | 34 | 66 | 30 | 2.35 | 40 | 0 |
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| 1958 | 75 | 61 | 85.9 | 65 | 64.2 | 52 | 3.41 | 29 | 0 |
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| 1957 | 76.9 | 36 | 87.8 | 48 | 66 | 30 | 5.28 | 8 | 2 |
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| 1956 | 77.8 | 23 | 90.4 | 11 | 65.2 | 38 | 2.26 | 44 | 0 |
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| 1955 | 77.7 | 27 | 89.6 | 17 | 65.9 | 35 | 6.33 | 7 | 0 |
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| 1954 | 74.9 | 64 | 86.2 | 58 | 63.6 | 58 | 1.29 | 60 | 0 |
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| 1953 | 78.9 | 10 | 91.5 | 4 | 66.4 | 22 | 1.69 | 53 | 1 |
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| 1952 | 76.4 | 41 | 89.4 | 20 | 63.4 | 61 | 3.11 | 32 | 0 |
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| 1951 | 75.3 | 56 | 87.2 | 53 | 63.4 | 61 | 3.50 | 26 | 0 |
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| 1950 | 77.8 | 23 | 89.5 | 19 | 66 | 30 | 1.73 | 52 | 0 |
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| 1949 | 76 | 49 | 89.4 | 20 | 62.6 | 68 | 1.15 | 64 | 1 |
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