Every August in Hagerstown, MD from 1899 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 | 75 | 34 | 83.8 | 71 | 66.3 | 11 | 3.90 | 41 | 0 |
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| 2025 | 73 | 67 | 82.7 | 95 | 63.2 | 47 | 0.97 | 121 | 0 |
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| 2024 | 75.2 | 29 | 84.6 | 56 | 65.8 | 16 | 5.22 | 18 | 0 |
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| 2023 | 75.4 | 25 | 85.1 | 47 | 65.7 | 18 | 3.76 | 45 | 0 |
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| 2022 | 76.9 | 10 | 86.7 | 22 | 67 | 7 | 1.66 | 111 | 0 |
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| 2021 | 78.5 | 2 | 88.1 | 11 | 68.9 | 3 | 4.51 | 28 | 0 |
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| 2020 | 77.2 | 8 | 86.3 | 29 | 68.1 | 5 | 2.68 | 83 | 0 |
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| 2019 | 75.8 | 20 | 85.8 | 38 | 65.7 | 18 | 2.40 | 91 | 0 |
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| 2018 | 77.7 | 5 | 86.4 | 27 | 69 | 2 | 6.24 | 9 | 0 |
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| 2017 | 73.1 | 63 | 82.2 | 101 | 64 | 34 | 2.90 | 75 | 0 |
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| 2016 | 79.1 | 1 | 88.5 | 8 | 69.7 | 1 | 1.79 | 107 | 0 |
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| 2015 | 75.5 | 24 | 85.9 | 35 | 65.1 | 26 | 1.39 | 115 | 0 |
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| 2014 | 71.3 | 100 | 80.5 | 121 | 62 | 64 | 3.51 | 53 | 0 |
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| 2013 | 72.3 | 79 | 81.5 | 114 | 63.2 | 47 | 1.67 | 110 | 0 |
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| 2012 | 74.9 | 35 | 84.2 | 63 | 65.5 | 22 | 3.77 | 44 | 0 |
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| 2011 | 74.5 | 39 | 83.6 | 76 | 65.5 | 22 | 5.63 | 15 | 0 |
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| 2010 | 77.5 | 6 | 87.6 | 15 | 67.4 | 6 | 1.45 | 114 | 0 |
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| 2009 | 78.1 | 4 | 87.3 | 18 | 68.9 | 3 | 1.98 | 100 | 0 |
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| 2008 | 71.7 | 95 | 81.7 | 111 | 61.6 | 66 | 1.81 | 106 | 0 |
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| 2007 | 75.2 | 29 | 84.3 | 61 | 66.1 | 13 | 5.00 | 21 | 0 |
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| 2006 | 75.9 | 19 | 86.1 | 32 | 65.7 | 18 | 0.66 | 126 | 0 |
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| 2005 | 75.8 | 20 | 84.9 | 50 | 66.8 | 8 | 3.46 | 57 | 0 |
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| 2004 | 73 | 67 | 82.3 | 99 | 63.7 | 39 | 2.29 | 95 | 0 |
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| 2003 | 74.8 | 37 | 83.4 | 78 | 66.2 | 12 | 3.95 | 40 | 0 |
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| 2002 | 76.4 | 13 | 87.3 | 18 | 65.5 | 22 | 1.15 | 120 | 0 |
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| 2001 | 76.1 | 17 | 85.9 | 35 | 66.4 | 10 | 2.49 | 88 | 0 |
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| 2000 | 71 | 104 | 79.5 | 125 | 62.6 | 57 | 2.43 | 90 | 0 |
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| 1999 | 73.1 | 63 | 83.2 | 84 | 63 | 50 | 2.71 | 81 | 0 |
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| 1998 | 75.4 | 25 | 86.7 | 22 | 64 | 34 | 2.34 | 93 | 0 |
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| 1997 | 72.9 | 70 | 84.6 | 56 | 61.3 | 74 | 2.90 | 75 | 0 |
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| 1996 | 72.9 | 70 | 84.2 | 63 | 61.6 | 66 | 4.27 | 34 | 0 |
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| 1995 | 78.3 | 3 | 90.1 | 1 | 66.5 | 9 | 1.79 | 107 | 0 |
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| 1994 | 72 | 88 | 82.8 | 93 | 61.1 | 79 | 7.75 | 5 | 0 |
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| 1993 | 76.4 | 13 | 88.5 | 8 | 64.3 | 31 | 2.63 | 85 | 0 |
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| 1992 | 69.8 | 120 | 80.4 | 123 | 59.3 | 103 | 2.49 | 88 | 0 |
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| 1991 | 76.6 | 12 | 89 | 5 | 64.2 | 33 | 2.57 | 86 | 0 |
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| 1990 | 72.6 | 77 | 82.7 | 95 | 62.4 | 60 | 4.30 | 33 | 0 |
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| 1989 | 73.5 | 52 | 83.8 | 71 | 63.1 | 49 | 0.96 | 122 | 0 |
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| 1988 | 77.5 | 6 | 88.8 | 6 | 66.1 | 13 | 4.17 | 39 | 0 |
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| 1987 | 74.9 | 35 | 86.5 | 25 | 63.3 | 46 | 1.29 | 117 | 0 |
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| 1986 | 72.2 | 83 | 84.4 | 60 | 60 | 92 | 2.80 | 79 | 0 |
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| 1985 | 71.5 | 98 | 82.1 | 104 | 61 | 82 | 5.73 | 13 | 0 |
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| 1984 | 73.8 | 48 | 84.9 | 50 | 62.7 | 53 | 4.20 | 37 | 0 |
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| 1983 | 76.3 | 15 | 89.8 | 2 | 62.8 | 52 | 3.19 | 65 | 0 |
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| 1982 | 70.5 | 113 | 83 | 88 | 58.1 | 119 | 0.74 | 124 | 0 |
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| 1981 | 71.2 | 101 | 83.4 | 78 | 59.1 | 104 | 2.03 | 98 | 0 |
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| 1980 | 75.6 | 22 | 87.4 | 17 | 63.9 | 37 | 2.67 | 84 | 0 |
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| 1979 | 72.9 | 70 | 83 | 88 | 62.7 | 53 | 4.52 | 27 | 0 |
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| 1978 | 75.6 | 22 | 85.5 | 41 | 65.6 | 21 | 5.35 | 17 | 0 |
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| 1977 | 74.3 | 41 | 85.1 | 47 | 63.5 | 41 | 3.12 | 67 | 0 |
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| 1976 | 71.1 | 103 | 82.3 | 99 | 59.8 | 99 | 2.31 | 94 | 0 |
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| 1975 | 75.1 | 31 | 85.5 | 41 | 64.7 | 28 | 3.51 | 53 | 0 |
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| 1974 | 73.4 | 53 | 83.3 | 82 | 63.4 | 43 | 5.13 | 20 | 0 |
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| 1973 | 75.3 | 28 | 85.2 | 46 | 65.4 | 25 | 6.30 | 8 | 0 |
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| 1972 | 72.1 | 85 | 84.3 | 61 | 59.9 | 96 | 1.99 | 99 | 0 |
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| 1971 | 70.6 | 110 | 82.6 | 97 | 58.6 | 110 | 4.50 | 29 | 0 |
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| 1970 | 73 | 67 | 85 | 49 | 61.1 | 79 | 2.55 | 87 | 0 |
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| 1969 | 72.9 | 70 | 84.7 | 54 | 61.1 | 79 | 3.22 | 63 | 0 |
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| 1968 | 76.1 | 17 | 88.6 | 7 | 63.5 | 41 | 3.57 | 51 | 0 |
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| 1967 | 71 | 104 | 81.5 | 114 | 60.5 | 89 | 4.23 | 35 | 0 |
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| 1966 | 75.4 | 25 | 89.2 | 4 | 61.6 | 66 | 1.63 | 113 | 0 |
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| 1965 | 73.6 | 51 | 86.1 | 32 | 61.2 | 75 | 3.63 | 50 | 0 |
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| 1964 | 72.2 | 83 | 85.5 | 41 | 58.8 | 107 | 1.73 | 109 | 0 |
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| 1963 | 71.7 | 95 | 84.9 | 50 | 58.6 | 110 | 2.88 | 77 | 0 |
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| 1962 | 72.9 | 70 | 86 | 34 | 59.8 | 99 | 2.75 | 80 | 0 |
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| 1961 | 74.3 | 41 | 85.9 | 35 | 62.7 | 53 | 2.26 | 96 | 0 |
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| 1960 | 75.1 | 31 | 86.2 | 31 | 64 | 34 | 3.51 | 53 | 0 |
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| 1959 | 76.3 | 15 | 87.5 | 16 | 65 | 27 | 3.76 | 45 | 0 |
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| 1958 | 72.1 | 85 | 83.4 | 78 | 60.8 | 83 | 3.24 | 61 | 0 |
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| 1957 | 72.5 | 78 | 87.1 | 20 | 57.9 | 122 | 1.30 | 116 | 0 |
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| 1956 | 71.9 | 91 | 83 | 88 | 60.7 | 84 | 2.84 | 78 | 1 |
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| 1955 | 76.9 | 10 | 87.7 | 13 | 66 | 15 | 8.85 | 1 | 0 |
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| 1954 | 73.2 | 59 | 84 | 67 | 62.3 | 61 | 5.57 | 16 | 0 |
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| 1953 | 73.1 | 63 | 86.5 | 25 | 59.7 | 101 | 3.10 | 68 | 0 |
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| 1952 | 73.3 | 55 | 84 | 67 | 62.5 | 59 | 2.94 | 74 | 0 |
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| 1951 | 72 | 88 | 84.8 | 53 | 59.1 | 104 | 3.07 | 70 | 0 |
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| 1950 | 71.7 | 95 | 83.7 | 74 | 59.7 | 101 | 3.10 | 68 | 0 |
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| 1949 | 73.1 | 63 | 84.1 | 65 | 62.1 | 63 | 3.15 | 66 | 0 |
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| 1948 | 71.8 | 92 | 83.3 | 82 | 60.3 | 90 | 4.77 | 25 | 0 |
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| 1947 | 74.4 | 40 | 85.4 | 44 | 63.4 | 43 | 3.88 | 42 | 0 |
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| 1946 | 67.5 | 127 | 79.6 | 124 | 55.4 | 128 | 4.80 | 24 | 0 |
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| 1945 | 70.6 | 110 | 83 | 88 | 58.1 | 119 | 7.05 | 6 | 0 |
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| 1944 | 73.9 | 45 | 87 | 21 | 60.7 | 84 | 1.66 | 111 | 0 |
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| 1943 | 73.3 | 55 | 88.5 | 8 | 58.2 | 117 | 1.20 | 119 | 0 |
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| 1942 | 70.4 | 114 | 81 | 120 | 59.9 | 96 | 7.05 | 6 | 0 |
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| 1941 | 70.7 | 109 | 84.5 | 58 | 56.9 | 124 | 3.71 | 48 | 0 |
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| 1940 | 69.2 | 124 | 78.4 | 127 | 60 | 92 | 5.73 | 13 | 0 |
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| 1939 | 73.9 | 45 | 86.4 | 27 | 61.4 | 71 | 0.64 | 127 | 0 |
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| 1938 | 73.7 | 49 | 86.3 | 29 | 61.2 | 75 | 5.75 | 12 | 0 |
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| 1937 | 73.2 | 59 | 83.1 | 86 | 63.4 | 43 | 4.85 | 22 | 0 |
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| 1936 | 73.2 | 59 | 83.4 | 78 | 63 | 50 | 5.89 | 11 | 0 |
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| 1935 | 72.3 | 79 | 82 | 106 | 62.7 | 53 | 1.85 | 105 | 0 |
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| 1934 | 70.2 | 116 | 81.3 | 116 | 59.1 | 104 | 3.55 | 52 | 0 |
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| 1933 | 71.8 | 92 | 82.2 | 101 | 61.4 | 71 | 8.06 | 4 | 0 |
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| 1932 | 73.2 | 59 | 88 | 12 | 58.4 | 114 | 1.93 | 102 | 0 |
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| 1931 | 71.8 | 92 | 82 | 106 | 61.6 | 66 | 3.22 | 63 | 0 |
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| 1930 | 72.7 | 76 | 86.7 | 22 | 58.7 | 109 | 0.73 | 125 | 0 |
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| 1929 | 69.2 | 124 | 82.5 | 98 | 55.9 | 127 | 2.06 | 97 | 0 |
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| 1928 | 74.1 | 43 | 83.8 | 71 | 64.3 | 31 | | | 0 |
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| 1927 | 66.7 | 128 | 76.8 | 128 | 56.6 | 125 | 3.51 | 53 | 0 |
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| 1926 | 73.4 | 53 | 83 | 88 | 63.9 | 37 | 5.17 | 19 | 0 |
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| 1925 | 70.6 | 110 | 82.8 | 93 | 58.4 | 114 | 1.93 | 102 | 0 |
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| 1924 | 72 | 88 | 83.7 | 74 | 60 | 92 | 2.38 | 92 | 1 |
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| 1923 | 71.5 | 98 | 81.8 | 109 | 61.2 | 75 | 3.75 | 47 | 2 |
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| 1922 | 70.1 | 117 | 81.7 | 111 | 58.5 | 112 | 3.66 | 49 | 0 |
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| 1921 | 69.2 | 124 | 80.5 | 121 | 57.8 | 123 | 6.12 | 10 | 0 |
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| 1920 | 72.3 | 79 | 81.9 | 108 | 62.6 | 57 | 2.95 | 73 | 0 |
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| 1919 | 69.6 | 122 | 81.1 | 118 | 58.2 | 117 | 2.99 | 72 | 0 |
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| 1918 | 75.1 | 31 | 85.8 | 38 | 64.4 | 30 | 4.45 | 30 | 0 |
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| 1917 | 72.9 | 70 | 84.1 | 65 | 61.6 | 66 | 3.24 | 61 | 0 |
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| 1916 | 73.3 | 55 | 85.4 | 44 | 61.2 | 75 | 1.89 | 104 | 0 |
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| 1915 | 71 | 104 | 81.3 | 116 | 60.6 | 86 | 8.08 | 3 | 0 |
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| 1914 | 73.9 | 45 | 85.8 | 38 | 62 | 64 | 3.33 | 59 | 0 |
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| 1913 | 72.1 | 85 | 83.9 | 69 | 60.6 | 86 | 2.69 | 82 | 2 |
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| 1912 | 69.8 | 120 | 81.1 | 118 | 58.5 | 112 | 3.35 | 58 | 0 |
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| 1911 | 73.7 | 49 | 83.6 | 76 | 63.7 | 39 | 8.61 | 2 | 0 |
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| 1910 | 72.3 | 79 | 83.2 | 84 | 61.4 | 71 | 1.23 | 118 | 0 |
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| 1909 | 71 | 104 | 83.1 | 86 | 58.8 | 107 | 4.62 | 26 | 0 |
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| 1908 | 70.8 | 108 | 81.6 | 113 | 60 | 92 | 1.98 | 100 | 0 |
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| 1907 | 70 | 118 | 81.8 | 109 | 58.3 | 116 | 4.44 | 31 | 0 |
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| 1906 | 74.8 | 37 | 83.9 | 69 | 65.8 | 16 | 4.82 | 23 | 0 |
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| 1905 | 71.2 | 101 | 82.2 | 101 | 60.1 | 91 | 4.23 | 35 | 0 |
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| 1904 | 70 | 118 | 82.1 | 104 | 58 | 121 | 3.32 | 60 | 0 |
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| 1903 | 69.6 | 122 | 79.4 | 126 | 59.9 | 96 | 4.19 | 38 | 0 |
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| 1902 | 70.4 | 114 | 84.7 | 54 | 56.1 | 126 | 0.91 | 123 | 0 |
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| 1901 | 73.3 | 55 | 84.5 | 58 | 62.2 | 62 | 4.33 | 32 | 0 |
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| 1900 | 77.1 | 9 | 89.5 | 3 | 64.6 | 29 | 3.00 | 71 | 0 |
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| 1899 | 74.1 | 43 | 87.7 | 13 | 60.6 | 86 | 3.85 | 43 | 0 |
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