Every July in Georgetown, DE from 1945 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 | 78.7 | 18 | 88.5 | 28 | 68.9 | 18 | 4.82 | 29 | 0 |
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| 2025 | 80 | 7 | 88.9 | 20 | 71.2 | 4 | 9.45 | 4 | 0 |
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| 2024 | 79.4 | 12 | 88.4 | 29 | 70.4 | 9 | 8.90 | 6 | 0 |
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| 2023 | 78.7 | 18 | 87.9 | 35 | 69.6 | 14 | 6.29 | 16 | 0 |
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| 2022 | 80 | 7 | 89.4 | 14 | 70.6 | 7 | 3.66 | 45 | 0 |
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| 2021 | 79.3 | 13 | 88.4 | 29 | 70.2 | 11 | 6.34 | 15 | 0 |
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| 2020 | 82 | 1 | 91.3 | 4 | 72.7 | 1 | 6.62 | 14 | 0 |
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| 2019 | 81 | 4 | 91.6 | 2 | 70.5 | 8 | 2.30 | 63 | 0 |
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| 2018 | 77.2 | 33 | 86.4 | 54 | 67.9 | 26 | 4.18 | 41 | 0 |
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| 2017 | 79.6 | 11 | 88.4 | 29 | 70.8 | 6 | 8.61 | 7 | 0 |
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| 2016 | 80.1 | 6 | 89.2 | 17 | 71 | 5 | 4.26 | 40 | 0 |
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| 2015 | 77 | 36 | 85.8 | 60 | 68.1 | 23 | 3.31 | 48 | 0 |
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| 2014 | 75.9 | 54 | 85.4 | 64 | 66.4 | 39 | 7.02 | 12 | 0 |
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| 2013 | 79.7 | 10 | 87.7 | 37 | 71.7 | 3 | 6.63 | 13 | 0 |
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| 2012 | 81.6 | 2 | 91.4 | 3 | 71.9 | 2 | 3.29 | 49 | 0 |
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| 2011 | 81.1 | 3 | 92.1 | 1 | 70.1 | 12 | 2.95 | 53 | 0 |
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| 2010 | 80 | 7 | 90 | 8 | 70.1 | 12 | 2.39 | 62 | 0 |
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| 2009 | 77.7 | 29 | 87.4 | 41 | 68 | 24 | 2.48 | 59 | 0 |
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| 2008 | 78 | 27 | 88 | 34 | 68 | 24 | 4.43 | 34 | 0 |
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| 2007 | 76.4 | 45 | 87.2 | 44 | 65.7 | 48 | 3.98 | 43 | 0 |
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| 2006 | 78.5 | 20 | 87.7 | 37 | 69.3 | 16 | 3.28 | 50 | 0 |
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| 2005 | 78 | 27 | 86.5 | 49 | 69.4 | 15 | 6.27 | 17 | 0 |
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| 2004 | 77.3 | 31 | 86.1 | 58 | 68.6 | 20 | 4.27 | 39 | 0 |
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| 2003 | 76.1 | 50 | 84.3 | 71 | 67.9 | 26 | 7.65 | 9 | 0 |
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| 2002 | 78.4 | 21 | 89.3 | 15 | 67.5 | 30 | 2.13 | 65 | 0 |
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| 2001 | 72.1 | 80 | 81.9 | 79 | 62.2 | 79 | 4.31 | 36 | 0 |
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| 2000 | 72.8 | 79 | 81.2 | 80 | 64.5 | 60 | 5.74 | 24 | 0 |
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| 1999 | 79 | 17 | 89 | 19 | 68.9 | 18 | 1.24 | 77 | 0 |
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| 1998 | 76.2 | 47 | 86.4 | 54 | 65.9 | 44 | 1.75 | 71 | 0 |
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| 1996 | 73.5 | 78 | 83.4 | 77 | 63.7 | 71 | 8.32 | 8 | 0 |
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| 1995 | 78.1 | 26 | 88.6 | 27 | 67.7 | 28 | 5.12 | 27 | 0 |
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| 1994 | 76.1 | 50 | 89.7 | 11 | 62.5 | 78 | 4.74 | 31 | 0 |
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| 1993 | 79.1 | 15 | 89.8 | 9 | 68.5 | 21 | 2.11 | 66 | 0 |
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| 1992 | 75.8 | 55 | 86.5 | 49 | 65.1 | 51 | 2.44 | 61 | 0 |
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| 1991 | 77.3 | 31 | 87.3 | 42 | 67.3 | 32 | 5.93 | 20 | 0 |
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| 1990 | 76.5 | 44 | 87.3 | 42 | 65.8 | 46 | 3.86 | 44 | 0 |
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| 1989 | 75.6 | 60 | 85.7 | 61 | 65.6 | 49 | 9.26 | 5 | 0 |
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| 1988 | 78.2 | 23 | 88.8 | 24 | 67.6 | 29 | 4.82 | 29 | 0 |
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| 1987 | 78.4 | 21 | 89.7 | 11 | 67.1 | 34 | 3.66 | 45 | 0 |
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| 1986 | 78.2 | 23 | 88.9 | 20 | 67.5 | 30 | 2.05 | 67 | 0 |
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| 1985 | 76.7 | 41 | 86.5 | 49 | 66.8 | 35 | 1.83 | 69 | 0 |
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| 1984 | 74.1 | 75 | 83.4 | 77 | 64.9 | 55 | 4.65 | 32 | 0 |
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| 1983 | 76.2 | 47 | 88.9 | 20 | 63.5 | 73 | 1.21 | 78 | 0 |
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| 1982 | 75.3 | 64 | 86.2 | 57 | 64.4 | 63 | 5.77 | 22 | 0 |
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| 1981 | 76 | 52 | 87.2 | 44 | 64.8 | 56 | 1.80 | 70 | 0 |
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| 1980 | 77.4 | 30 | 88.8 | 24 | 66 | 42 | 1.33 | 75 | 0 |
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| 1979 | 74.2 | 74 | 83.6 | 75 | 64.8 | 56 | 2.69 | 58 | 1 |
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| 1978 | 73.6 | 77 | 83.5 | 76 | 63.6 | 72 | 4.11 | 42 | 0 |
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| 1977 | 76.6 | 42 | 88.7 | 26 | 64.5 | 60 | 1.71 | 72 | 0 |
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| 1976 | 75.2 | 66 | 86.3 | 56 | 63.9 | 70 | 2.47 | 60 | 1 |
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| 1975 | 74.4 | 72 | 84 | 73 | 64.8 | 56 | 7.34 | 10 | 0 |
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| 1974 | 75 | 69 | 86.9 | 46 | 63.1 | 75 | 0.72 | 79 | 0 |
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| 1973 | 75.8 | 55 | 86.8 | 48 | 64.8 | 56 | 1.28 | 76 | 0 |
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| 1972 | 75.3 | 64 | 84.5 | 70 | 66.1 | 40 | 1.50 | 74 | 0 |
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| 1971 | 74.6 | 71 | 85 | 67 | 64.2 | 65 | 4.29 | 37 | 0 |
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| 1970 | 75.1 | 67 | 84.3 | 71 | 65.8 | 46 | 2.88 | 55 | 0 |
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| 1969 | 75.8 | 55 | 85 | 67 | 66.5 | 38 | 9.91 | 3 | 0 |
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| 1968 | 76.4 | 45 | 87.7 | 37 | 65.1 | 51 | 2.17 | 64 | 0 |
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| 1967 | 75.5 | 61 | 84.9 | 69 | 66 | 42 | 5.87 | 21 | 1 |
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| 1966 | 76.6 | 42 | 89.2 | 17 | 64 | 69 | 1.60 | 73 | 1 |
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| 1965 | 75.4 | 63 | 86.5 | 49 | 64.3 | 64 | 7.31 | 11 | 0 |
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| 1964 | 77.1 | 34 | 88.2 | 33 | 65.9 | 44 | 3.04 | 52 | 1 |
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| 1963 | 76 | 52 | 87.8 | 36 | 64.1 | 67 | 2.73 | 57 | 0 |
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| 1962 | 73.7 | 76 | 85.1 | 66 | 62.2 | 79 | 2.75 | 56 | 2 |
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| 1961 | 77.1 | 34 | 87.5 | 40 | 66.8 | 35 | 5.27 | 26 | 0 |
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| 1960 | 74.4 | 72 | 85.9 | 59 | 62.9 | 76 | 6.06 | 18 | 0 |
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| 1959 | 76.8 | 39 | 86.9 | 46 | 66.6 | 37 | 12.97 | 1 | 0 |
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| 1958 | 79.2 | 14 | 89.3 | 15 | 69 | 17 | 4.37 | 35 | 0 |
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| 1957 | 76.8 | 39 | 91 | 6 | 62.6 | 77 | 0.37 | 80 | 1 |
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| 1956 | 75.8 | 55 | 85.5 | 63 | 66.1 | 40 | 5.77 | 22 | 0 |
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| 1955 | 80.6 | 5 | 90.9 | 7 | 70.3 | 10 | 3.60 | 47 | 0 |
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| 1954 | 76.2 | 47 | 88.9 | 20 | 63.4 | 74 | 4.56 | 33 | 0 |
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| 1953 | 77 | 36 | 89.7 | 11 | 64.2 | 65 | 2.05 | 67 | 0 |
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| 1952 | 78.2 | 23 | 91.3 | 4 | 65.1 | 51 | 2.91 | 54 | 0 |
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| 1951 | 77 | 36 | 88.4 | 29 | 65.5 | 50 | 6.00 | 19 | 0 |
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| 1950 | 75.1 | 67 | 85.6 | 62 | 64.5 | 60 | 5.29 | 25 | 0 |
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| 1949 | 79.1 | 15 | 89.8 | 9 | 68.4 | 22 | 3.08 | 51 | 0 |
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| 1948 | 75.8 | 55 | 86.5 | 49 | 65.1 | 51 | 5.05 | 28 | 0 |
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| 1947 | 74.7 | 70 | 85.2 | 65 | 64.1 | 67 | 4.28 | 38 | 0 |
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| 1945 | 75.5 | 61 | 83.7 | 74 | 67.3 | 32 | 10.71 | 2 | 0 |
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