Every July in Charleston Downtown, SC from 1893 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 | 84.6 | 6 | 89.4 | 21 | 79.9 | 2 | 4.32 | 92 | 0 |
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| 2025 | 84.1 | 7 | 89 | 30 | 79.3 | 5 | 4.55 | 90 | 0 |
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| 2024 | 83.4 | 19 | 88.3 | 50 | 78.5 | 9 | 7.51 | 37 | 0 |
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| 2023 | 83.8 | 12 | 89.4 | 21 | 78.1 | 12 | 6.23 | 56 | 0 |
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| 2022 | 82.5 | 40 | 87.3 | 77 | 77.6 | 16 | 6.45 | 53 | 0 |
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| 2021 | 83.6 | 16 | 88.3 | 50 | 78.9 | 7 | 5.34 | 75 | 0 |
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| 2020 | 83.6 | 16 | 88.5 | 43 | 78.7 | 8 | 2.06 | 124 | 0 |
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| 2019 | 82.4 | 42 | 87.6 | 67 | 77.2 | 22 | 4.08 | 98 | 0 |
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| 2018 | 81.9 | 62 | 87.1 | 90 | 76.7 | 35 | 10.87 | 12 | 0 |
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| 2017 | 81.9 | 62 | 87.5 | 68 | 76.4 | 42 | 7.14 | 43 | 0 |
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| 2016 | 85 | 2 | 90.3 | 9 | 79.6 | 3 | 2.67 | 117 | 0 |
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| 2015 | 83.1 | 23 | 89 | 30 | 77.2 | 22 | 1.68 | 127 | 0 |
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| 2014 | 82.1 | 54 | 87.3 | 77 | 76.9 | 32 | 4.87 | 82 | 0 |
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| 2013 | 80.9 | 93 | 84.7 | 130 | 77.1 | 27 | 3.71 | 101 | 0 |
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| 2012 | 83.1 | 23 | 88.5 | 43 | 77.8 | 15 | 4.74 | 84 | 0 |
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| 2011 | 83.2 | 21 | 88 | 54 | 78.5 | 9 | 5.41 | 73 | 0 |
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| 2010 | 82.8 | 30 | 88 | 54 | 77.6 | 16 | 6.73 | 50 | 0 |
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| 2009 | 80.4 | 112 | 85.5 | 123 | 75.2 | 80 | 5.59 | 70 | 0 |
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| 2008 | 81.2 | 83 | 86.4 | 110 | 76.1 | 51 | 3.16 | 105 | 0 |
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| 2007 | 81.1 | 87 | 86.4 | 110 | 75.7 | 65 | 4.81 | 83 | 0 |
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| 2006 | 82.1 | 54 | 87.2 | 85 | 77 | 30 | 2.73 | 114 | 0 |
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| 2005 | 83.4 | 19 | 88.5 | 43 | 78.3 | 11 | 1.64 | 128 | 0 |
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| 2004 | 81.9 | 62 | 86.7 | 99 | 77.1 | 27 | 5.38 | 74 | 0 |
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| 2003 | 80.7 | 101 | 85 | 126 | 76.4 | 42 | 8.93 | 26 | 0 |
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| 2002 | 82.7 | 34 | 88 | 54 | 77.4 | 19 | 1.85 | 126 | 0 |
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| 2001 | 82.4 | 42 | 89.3 | 25 | 75.4 | 74 | 9.96 | 19 | 0 |
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| 2000 | 82.9 | 27 | 88.9 | 33 | 76.8 | 33 | 5.90 | 64 | 0 |
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| 1999 | 84 | 9 | 89.9 | 15 | 78.1 | 12 | 3.06 | 106 | 0 |
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| 1998 | 86 | 1 | 91.6 | 4 | 80.4 | 1 | 7.89 | 33 | 0 |
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| 1997 | 81.5 | 73 | 87.2 | 85 | 75.8 | 59 | 6.16 | 58 | 0 |
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| 1996 | 82.2 | 52 | 88 | 54 | 76.4 | 42 | 3.75 | 100 | 0 |
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| 1995 | 82.4 | 42 | 87.5 | 68 | 77.3 | 20 | 7.10 | 45 | 0 |
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| 1994 | 81.5 | 73 | 86.5 | 104 | 76.6 | 36 | 9.40 | 23 | 0 |
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| 1993 | 84.7 | 5 | 90.2 | 10 | 79.3 | 5 | 1.32 | 132 | 0 |
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| 1992 | 83.8 | 12 | 89.5 | 19 | 78.1 | 12 | 2.70 | 116 | 0 |
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| 1991 | 82.7 | 34 | 87.9 | 60 | 77.5 | 18 | 6.92 | 46 | 0 |
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| 1990 | 82.3 | 45 | 87.4 | 73 | 77.2 | 22 | 12.81 | 8 | 0 |
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| 1989 | 81.6 | 69 | 86.8 | 96 | 76.4 | 42 | 6.15 | 59 | 0 |
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| 1988 | 80.3 | 114 | 84.8 | 129 | 75.8 | 59 | 1.59 | 129 | 0 |
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| 1987 | 82.3 | 45 | 88 | 54 | 76.6 | 36 | 2.71 | 115 | 0 |
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| 1986 | 84.8 | 4 | 90.1 | 12 | 79.5 | 4 | 0.54 | 133 | 0 |
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| 1985 | 83.7 | 15 | 90.8 | 6 | 76.6 | 36 | 10.87 | 12 | 0 |
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| 1984 | 79.9 | 123 | 86.5 | 104 | 73.4 | 127 | 7.17 | 41 | 0 |
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| 1983 | 82.3 | 45 | 90 | 14 | 74.6 | 97 | 4.74 | 84 | 0 |
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| 1982 | | | | | | | | | 7 |
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| 1981 | 83 | 25 | 89.4 | 21 | 76.5 | 41 | 5.04 | 81 | 0 |
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| 1980 | 83.2 | 21 | 90.1 | 12 | 76.4 | 42 | 6.84 | 48 | 0 |
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| 1979 | 81.5 | 73 | 88.7 | 39 | 74.2 | 110 | 5.10 | 80 | 0 |
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| 1978 | 82.2 | 52 | 89.3 | 25 | 75 | 86 | 10.13 | 18 | 0 |
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| 1977 | 84.9 | 3 | 92.6 | 1 | 77.1 | 27 | 2.79 | 111 | 0 |
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| 1976 | 82.1 | 54 | 89.8 | 17 | 74.5 | 102 | 4.49 | 91 | 0 |
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| 1975 | 80.8 | 95 | 86.9 | 94 | 74.7 | 95 | 6.32 | 55 | 0 |
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| 1974 | 79.7 | 125 | 85.4 | 124 | 74 | 116 | 2.75 | 113 | 0 |
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| 1973 | 81.6 | 69 | 87.5 | 68 | 75.8 | 59 | 2.77 | 112 | 0 |
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| 1972 | 81.2 | 83 | 87.5 | 68 | 74.9 | 89 | 1.37 | 131 | 0 |
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| 1971 | 80.7 | 101 | 87.3 | 77 | 74.1 | 112 | 9.20 | 25 | 0 |
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| 1970 | 82.8 | 30 | 89.5 | 19 | 76.2 | 48 | 2.23 | 122 | 0 |
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| 1969 | 83.5 | 18 | 89.8 | 17 | 77.3 | 20 | 4.19 | 95 | 0 |
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| 1968 | 82 | 60 | 88.4 | 49 | 75.6 | 67 | 5.18 | 77 | 0 |
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| 1967 | 80 | 121 | 86.4 | 110 | 73.6 | 124 | 9.30 | 24 | 0 |
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| 1966 | 80.8 | 95 | 87.5 | 68 | 74.2 | 110 | 8.70 | 27 | 0 |
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| 1965 | 80.6 | 107 | 86.6 | 102 | 74.6 | 97 | 5.78 | 65 | 0 |
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| 1964 | 78.6 | 132 | 84.2 | 132 | 73 | 129 | 23.75 | 1 | 0 |
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| 1963 | 80.3 | 114 | 87 | 91 | 73.5 | 125 | 6.19 | 57 | 0 |
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| 1962 | 81.8 | 68 | 87.9 | 60 | 75.7 | 65 | 3.39 | 103 | 0 |
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| 1961 | 82.1 | 54 | 88.8 | 37 | 75.3 | 76 | 1.95 | 125 | 0 |
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| 1960 | 80.8 | 95 | 86.3 | 114 | 75.3 | 76 | 11.74 | 9 | 0 |
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| 1959 | 80.8 | 95 | 86 | 119 | 75.5 | 68 | 7.71 | 35 | 0 |
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| 1958 | 83 | 25 | 88.9 | 33 | 77.2 | 22 | 2.54 | 118 | 0 |
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| 1957 | 80.4 | 112 | 86.5 | 104 | 74.3 | 107 | 7.49 | 38 | 0 |
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| 1956 | 82.1 | 54 | 88.7 | 39 | 75.5 | 68 | 5.60 | 69 | 0 |
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| 1955 | 81.9 | 62 | 87.9 | 60 | 75.8 | 59 | 4.10 | 97 | 0 |
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| 1954 | 82.7 | 34 | 89.1 | 29 | 76.3 | 47 | 5.23 | 76 | 0 |
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| 1953 | 81 | 88 | 87.3 | 77 | 74.8 | 92 | 6.15 | 59 | 0 |
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| 1952 | 82.3 | 45 | 88.6 | 41 | 75.9 | 55 | 2.92 | 109 | 0 |
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| 1951 | 81.2 | 83 | 87.4 | 73 | 75 | 86 | 5.75 | 66 | 0 |
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| 1950 | 80.5 | 111 | 86.4 | 110 | 74.6 | 97 | 12.99 | 6 | 0 |
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| 1949 | 82.7 | 34 | 88.5 | 43 | 77 | 30 | 5.64 | 68 | 0 |
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| 1948 | 82 | 60 | 88.5 | 43 | 75.5 | 68 | 10.30 | 17 | 0 |
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| 1947 | 78.7 | 131 | 85.4 | 124 | 72 | 131 | 7.89 | 33 | 0 |
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| 1946 | 80.8 | 95 | 87.3 | 77 | 74.3 | 107 | 10.45 | 16 | 0 |
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| 1945 | 80.7 | 101 | 86.3 | 114 | 75.2 | 80 | 17.25 | 3 | 0 |
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| 1944 | 80 | 121 | 86.1 | 116 | 73.8 | 120 | 4.29 | 93 | 0 |
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| 1943 | 81.9 | 62 | 89 | 30 | 74.9 | 89 | 8.61 | 29 | 0 |
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| 1942 | 84.1 | 7 | 92.1 | 2 | 76.1 | 51 | 7.37 | 39 | 0 |
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| 1941 | 81.6 | 69 | 87.9 | 60 | 75.3 | 76 | 13.39 | 5 | 0 |
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| 1940 | 81.4 | 77 | 87.7 | 66 | 75 | 86 | 7.15 | 42 | 0 |
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| 1939 | 81.9 | 62 | 88.5 | 43 | 75.2 | 80 | 10.77 | 14 | 0 |
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| 1938 | | | | | | | 5.99 | 63 | 31 |
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| 1937 | 81 | 88 | 87.9 | 60 | 74 | 116 | 9.62 | 21 | 0 |
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| 1936 | 82.9 | 27 | 90.6 | 7 | 75.2 | 80 | 3.42 | 102 | 0 |
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| 1935 | 79.3 | 128 | 84.9 | 127 | 73.7 | 121 | 17.78 | 2 | 0 |
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| 1934 | 83.9 | 10 | 90.6 | 7 | 77.2 | 22 | 2.35 | 120 | 0 |
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| 1933 | 80.3 | 114 | 86.1 | 116 | 74.5 | 102 | 8.12 | 31 | 0 |
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| 1932 | 83.8 | 12 | 91.7 | 3 | 75.9 | 55 | 4.03 | 99 | 0 |
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| 1931 | 82.9 | 27 | 89.9 | 15 | 75.9 | 55 | 6.88 | 47 | 0 |
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| 1930 | 83.9 | 10 | 91.6 | 4 | 76.2 | 48 | 6.09 | 61 | 0 |
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| 1929 | 79.7 | 125 | 86 | 119 | 73.5 | 125 | 6.07 | 62 | 0 |
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| 1928 | 81 | 88 | 87.3 | 77 | 74.8 | 92 | 5.16 | 78 | 0 |
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| 1927 | 80.6 | 107 | 87.2 | 85 | 74.1 | 112 | 4.61 | 89 | 0 |
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| 1926 | 81.3 | 79 | 87 | 91 | 75.5 | 68 | 4.29 | 93 | 0 |
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| 1925 | 82.7 | 34 | 88.9 | 33 | 76.6 | 36 | 2.38 | 119 | 0 |
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| 1924 | 81.3 | 79 | 87.8 | 65 | 74.7 | 95 | 6.59 | 51 | 0 |
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| 1923 | 80.1 | 119 | 86.5 | 104 | 73.7 | 121 | 7.23 | 40 | 0 |
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| 1922 | 82.3 | 45 | 89.3 | 25 | 75.3 | 76 | 8.02 | 32 | 0 |
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| 1921 | 80.6 | 107 | 86.5 | 104 | 74.6 | 97 | 16.61 | 4 | 0 |
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| 1920 | 80.1 | 119 | 86.8 | 96 | 73.3 | 128 | 4.69 | 86 | 0 |
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| 1919 | 80.6 | 107 | 86.6 | 102 | 74.6 | 97 | 8.53 | 30 | 0 |
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| 1918 | 79.4 | 127 | 86.7 | 99 | 72 | 131 | 7.69 | 36 | 0 |
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| 1917 | 80.8 | 95 | 87.4 | 73 | 74.3 | 107 | 9.95 | 20 | 0 |
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| 1916 | 79.1 | 129 | 84.3 | 131 | 73.9 | 119 | 11.61 | 10 | 0 |
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| 1915 | 82.1 | 54 | 89.2 | 28 | 75.1 | 85 | 2.98 | 108 | 0 |
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| 1914 | 81 | 88 | 88 | 54 | 74.1 | 112 | 7.14 | 43 | 0 |
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| 1913 | 82.5 | 40 | 88.9 | 33 | 76.2 | 48 | 5.51 | 72 | 0 |
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| 1912 | 80.7 | 101 | 86.5 | 104 | 74.8 | 92 | 3.05 | 107 | 0 |
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| 1911 | 80.7 | 101 | 87.3 | 77 | 74 | 116 | 2.23 | 122 | 0 |
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| 1910 | 80.7 | 101 | 87 | 91 | 74.5 | 102 | 4.68 | 87 | 0 |
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| 1909 | 80.2 | 117 | 86.1 | 116 | 74.4 | 106 | 4.17 | 96 | 0 |
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| 1908 | 81.5 | 73 | 86.9 | 94 | 76 | 54 | 2.80 | 110 | 0 |
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| 1907 | 82.3 | 45 | 88.8 | 37 | 75.8 | 59 | 2.33 | 121 | 0 |
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| 1906 | 79.9 | 123 | 85.6 | 122 | 74.1 | 112 | 8.68 | 28 | 0 |
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| 1905 | 81.2 | 83 | 86.8 | 96 | 75.5 | 68 | 5.70 | 67 | 0 |
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| 1904 | 80.2 | 117 | 86.7 | 99 | 73.7 | 121 | 6.36 | 54 | 0 |
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| 1903 | 81 | 88 | 87.2 | 85 | 74.9 | 89 | 3.23 | 104 | 0 |
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| 1902 | 82.8 | 30 | 89.4 | 21 | 76.1 | 51 | 6.79 | 49 | 0 |
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| 1901 | 81.3 | 79 | 87.2 | 85 | 75.4 | 74 | 5.53 | 71 | 0 |
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| 1900 | 82.7 | 34 | 88.6 | 41 | 76.8 | 33 | 1.59 | 129 | 0 |
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| 1899 | 80.9 | 93 | 85.9 | 121 | 75.8 | 59 | 5.11 | 79 | 0 |
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| 1898 | 81.3 | 79 | 87.4 | 73 | 75.2 | 80 | 12.99 | 6 | 0 |
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| 1897 | 81.6 | 69 | 87.3 | 77 | 75.9 | 55 | 9.42 | 22 | 0 |
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| 1896 | 82.3 | 45 | 88.1 | 53 | 76.6 | 36 | 10.58 | 15 | 0 |
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| 1895 | 81.4 | 77 | 88.3 | 50 | 74.5 | 102 | 6.46 | 52 | 0 |
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| 1894 | 78.9 | 130 | 84.9 | 127 | 72.8 | 130 | 11.28 | 11 | 0 |
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| 1893 | 82.8 | 30 | 90.2 | 10 | 75.5 | 68 | 4.65 | 88 | 0 |
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