Every 1 September to 9 October in Reading, PA from 1869 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 | 66.4 | 34 | 75.5 | 55 | 57.2 | 24 | 5.32 | 52 | 0 |
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| 2025 | 68.7 | 9 | 79.9 | 7 | 57.4 | 19 | 3.43 | 97 | 0 |
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| 2024 | 67.3 | 23 | 76.9 | 35 | 57.7 | 15 | 1.09 | 147 | 0 |
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| 2023 | 67.6 | 18 | 77.5 | 27 | 57.6 | 16 | 6.21 | 39 | 0 |
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| 2022 | 64.9 | 64 | 74.4 | 82 | 55.3 | 52 | 7.36 | 26 | 0 |
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| 2021 | 68.2 | 11 | 77.8 | 21 | 58.6 | 7 | 8.28 | 20 | 0 |
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| 2020 | 64.9 | 64 | 75.5 | 55 | 54.3 | 69 | 4.12 | 79 | 0 |
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| 2019 | 67.8 | 16 | 78.4 | 16 | 57.2 | 24 | 2.96 | 112 | 0 |
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| 2018 | 70 | 4 | 77.4 | 29 | 62.5 | 1 | 8.49 | 17 | 0 |
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| 2017 | 67.5 | 20 | 77.9 | 20 | 57 | 31 | 4.69 | 63 | 0 |
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| 2016 | 67.8 | 16 | 78.2 | 18 | 57.4 | 19 | 4.89 | 60 | 0 |
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| 2015 | 67.5 | 20 | 77.7 | 22 | 57.4 | 19 | 6.64 | 32 | 0 |
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| 2014 | 65.4 | 53 | 76.2 | 43 | 54.6 | 65 | 2.30 | 134 | 0 |
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| 2013 | 65.4 | 53 | 77.1 | 32 | 53.8 | 77 | 2.56 | 128 | 0 |
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| 2012 | 64.8 | 68 | 74.5 | 79 | 55.2 | 54 | 7.27 | 27 | 0 |
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| 2011 | 65.7 | 47 | 74.2 | 85 | 57.2 | 24 | 12.20 | 2 | 0 |
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| 2010 | 66.7 | 32 | 77.7 | 22 | 55.6 | 48 | 8.52 | 15 | 0 |
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| 2009 | 63.3 | 94 | 72.4 | 111 | 54.2 | 72 | 3.42 | 98 | 0 |
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| 2008 | 64.4 | 78 | 74.6 | 72 | 54.2 | 72 | 5.73 | 46 | 0 |
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| 2007 | 69.1 | 7 | 81.1 | 3 | 57.1 | 27 | 1.62 | 142 | 0 |
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| 2006 | 62.6 | 107 | 71.8 | 116 | 53.4 | 84 | 8.42 | 19 | 0 |
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| 2005 | 69.1 | 7 | 81.1 | 3 | 57.1 | 27 | 9.54 | 7 | 0 |
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| 2004 | 65.2 | 58 | 75.4 | 61 | 55 | 58 | 7.76 | 24 | 0 |
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| 2003 | 62.2 | 111 | 71.3 | 122 | 53.1 | 92 | 9.43 | 8 | 0 |
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| 2002 | 67.9 | 15 | 78.9 | 12 | 56.8 | 36 | 3.72 | 87 | 0 |
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| 2001 | 62 | 113 | 73.7 | 93 | 50.3 | 123 | 5.16 | 55 | 0 |
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| 2000 | 61.1 | 122 | 71.5 | 119 | 50.8 | 120 | 5.34 | 51 | 0 |
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| 1999 | 63.2 | 98 | 73.3 | 98 | 53.2 | 90 | 13.20 | 1 | 0 |
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| 1998 | 66.2 | 37 | 76.7 | 40 | 55.7 | 47 | 6.78 | 31 | 0 |
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| 1997 | 64.8 | 68 | 75.8 | 49 | 53.7 | 79 | 3.63 | 90 | 0 |
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| 1996 | 63 | 102 | 72.7 | 108 | 53.4 | 84 | 6.84 | 30 | 0 |
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| 1995 | 65.4 | 53 | 77.1 | 32 | 53.7 | 79 | 6.19 | 40 | 0 |
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| 1994 | 62 | 113 | 73.5 | 94 | 50.6 | 122 | 4.00 | 81 | 0 |
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| 1993 | 63.7 | 90 | 74 | 90 | 53.4 | 84 | 9.32 | 10 | 0 |
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| 1992 | 61.9 | 116 | 72.6 | 109 | 51.1 | 117 | 5.66 | 47 | 0 |
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| 1991 | 62.9 | 104 | 74.9 | 69 | 50.8 | 120 | 5.03 | 58 | 0 |
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| 1990 | 62.9 | 104 | 74.1 | 88 | 51.8 | 111 | 2.58 | 124 | 0 |
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| 1989 | 62.8 | 106 | 73.1 | 101 | 52.5 | 103 | 5.86 | 45 | 0 |
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| 1988 | 60.3 | 128 | 71.3 | 122 | 49.2 | 126 | 2.76 | 116 | 0 |
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| 1987 | 61.7 | 117 | 71.9 | 115 | 51.6 | 113 | 10.92 | 4 | 0 |
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| 1986 | 64.9 | 64 | 76.7 | 40 | 53.1 | 92 | 3.85 | 83 | 0 |
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| 1985 | 65 | 62 | 77.4 | 29 | 52.6 | 98 | 7.09 | 28 | 0 |
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| 1984 | 60.9 | 123 | 73.5 | 94 | 48.2 | 129 | 3.02 | 110 | 0 |
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| 1983 | 65.9 | 42 | 79.9 | 7 | 52 | 109 | 1.32 | 145 | 0 |
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| 1982 | 64 | 87 | 75.7 | 52 | 52.4 | 105 | 2.77 | 115 | 0 |
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| 1981 | 62 | 113 | 72.2 | 113 | 51.8 | 111 | 3.87 | 82 | 0 |
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| 1980 | 65.7 | 47 | 78.9 | 12 | 52.5 | 103 | 3.82 | 85 | 0 |
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| 1979 | 63.3 | 94 | 74.3 | 83 | 52.2 | 108 | 9.39 | 9 | 1 |
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| 1978 | 62.2 | 111 | 74.6 | 72 | 49.9 | 125 | 2.46 | 130 | 0 |
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| 1977 | 64.4 | 78 | 75.3 | 63 | 53.4 | 84 | 4.61 | 66 | 0 |
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| 1976 | | | 73 | 103 | | | 6.01 | 43 | 4 |
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| 1975 | 59.6 | 129 | 72.2 | 113 | 47 | 130 | 9.09 | 12 | 0 |
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| 1974 | 60.9 | 123 | 73.1 | 101 | 48.7 | 128 | 6.29 | 37 | 0 |
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| 1973 | 64.1 | 84 | 75.6 | 54 | 52.6 | 98 | 7.09 | 28 | 0 |
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| 1972 | 64.6 | 75 | 76.9 | 35 | 52.4 | 105 | 2.19 | 136 | 0 |
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| 1971 | 67.3 | 23 | 75.9 | 45 | 58.7 | 6 | 3.51 | 96 | 0 |
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| 1970 | 67.6 | 18 | 80.8 | 5 | 54.3 | 69 | 2.69 | 119 | 0 |
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| 1969 | 65.5 | 51 | 78.3 | 17 | 52.6 | 98 | 4.46 | 69 | 0 |
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| 1968 | 67.3 | 23 | 77.6 | 26 | 56.9 | 34 | 4.84 | 62 | 0 |
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| 1967 | 64.9 | 64 | 75.5 | 55 | 54.4 | 68 | 1.34 | 144 | 0 |
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| 1966 | 63 | 102 | 71.8 | 116 | 54.2 | 72 | 6.41 | 34 | 0 |
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| 1965 | 65.8 | 46 | 74.7 | 71 | 57 | 31 | 5.17 | 54 | 0 |
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| 1964 | 64.5 | 76 | 75.2 | 64 | 53.8 | 77 | 2.14 | 137 | 0 |
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| 1963 | 63.2 | 98 | 73.8 | 92 | 52.6 | 98 | 5.51 | 50 | 0 |
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| 1962 | 63.3 | 94 | 71.8 | 116 | 54.7 | 62 | 6.24 | 38 | 0 |
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| 1961 | 70.2 | 3 | 79.9 | 7 | 60.4 | 5 | 2.96 | 112 | 0 |
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| 1960 | 65 | 62 | 74.1 | 88 | 55.9 | 45 | 5.97 | 44 | 0 |
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| 1959 | 71.5 | 1 | 80.8 | 5 | 62.3 | 2 | 3.11 | 109 | 0 |
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| 1958 | 63.8 | 89 | 74.2 | 85 | 53.3 | 88 | 5.54 | 48 | 0 |
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| 1957 | 66.8 | 29 | 75.9 | 45 | 57.6 | 16 | 3.32 | 103 | 0 |
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| 1956 | 62.3 | 110 | 71.4 | 120 | 53.2 | 90 | 4.36 | 72 | 0 |
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| 1955 | 65.9 | 42 | 75.1 | 65 | 56.6 | 38 | 4.33 | 74 | 0 |
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| 1954 | 67.4 | 22 | 76.6 | 42 | 58.2 | 11 | 2.58 | 124 | 0 |
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| 1953 | 66.1 | 39 | 76.8 | 38 | 55.3 | 52 | 3.01 | 111 | 0 |
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| 1952 | 65.2 | 58 | 75.8 | 49 | 54.6 | 65 | 8.02 | 23 | 0 |
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| 1951 | 66.8 | 29 | 76.8 | 38 | 56.7 | 37 | 4.36 | 72 | 0 |
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| 1950 | 63.2 | 98 | 71.2 | 124 | 55.2 | 54 | 5.06 | 57 | 0 |
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| 1949 | 64.3 | 82 | 73.9 | 91 | 54.8 | 61 | 3.53 | 95 | 0 |
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| 1948 | 65.1 | 60 | 75.1 | 65 | 55.2 | 54 | 3.75 | 86 | 0 |
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| 1947 | 65.7 | 47 | 75.9 | 45 | 55.5 | 50 | 3.28 | 105 | 0 |
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| 1946 | 66.8 | 29 | 78.5 | 15 | 55.1 | 57 | 2.71 | 117 | 0 |
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| 1945 | 65.9 | 42 | 75 | 68 | 56.9 | 34 | 8.43 | 18 | 0 |
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| 1944 | 66 | 41 | 74.5 | 79 | 57.5 | 18 | 6.03 | 42 | 0 |
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| 1943 | 64.3 | 82 | 75.9 | 45 | 52.7 | 95 | 2.32 | 133 | 0 |
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| 1942 | 65.1 | 60 | 75.5 | 55 | 54.7 | 62 | 4.14 | 78 | 0 |
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| 1941 | 69.9 | 5 | 81.4 | 1 | 58.4 | 9 | 0.58 | 150 | 0 |
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| 1940 | 63.3 | 94 | 73.4 | 96 | 53.3 | 88 | 4.64 | 65 | 0 |
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| 1939 | 65.6 | 50 | 74.6 | 72 | 56.6 | 38 | 4.61 | 66 | 0 |
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| 1938 | 61.7 | 117 | 70.5 | 128 | 52.9 | 94 | 5.53 | 49 | 0 |
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| 1937 | 63.4 | 92 | 72.3 | 112 | 54.6 | 65 | 0.99 | 149 | 0 |
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| 1936 | 66.3 | 35 | 74.6 | 72 | 58.1 | 12 | 2.66 | 121 | 0 |
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| 1935 | 60.7 | 126 | 69.7 | 129 | 51.6 | 113 | 3.39 | 100 | 0 |
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| 1934 | 65.3 | 57 | 73.3 | 98 | 57.4 | 19 | 8.84 | 13 | 0 |
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| 1933 | 66.3 | 35 | 74.2 | 85 | 58.4 | 9 | 3.54 | 94 | 0 |
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| 1932 | 66.6 | 33 | 76.9 | 35 | 56.2 | 44 | 3.60 | 92 | 0 |
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| 1931 | 71 | 2 | 81.2 | 2 | 60.8 | 3 | 4.09 | 80 | 0 |
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| 1930 | 68 | 14 | 78.2 | 18 | 57.8 | 14 | 3.25 | 107 | 0 |
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| 1929 | 64.8 | 68 | 74.6 | 72 | 55 | 58 | 8.07 | 22 | 0 |
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| 1928 | 62.6 | 107 | 71.2 | 124 | 54.1 | 75 | 4.45 | 70 | 0 |
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| 1927 | 67.3 | 23 | 77.5 | 27 | 57.1 | 27 | 3.71 | 88 | 0 |
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| 1926 | 64.8 | 68 | 73 | 103 | 56.6 | 38 | 5.07 | 56 | 0 |
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| 1925 | 65.9 | 42 | 74.6 | 72 | 57.1 | 27 | 4.19 | 77 | 0 |
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| 1924 | 61.2 | 121 | 70.8 | 126 | 51.6 | 113 | 6.37 | 35 | 0 |
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| 1923 | 64.5 | 76 | 73.4 | 96 | 55.6 | 48 | 3.34 | 102 | 0 |
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| 1922 | 68.7 | 9 | 79.3 | 10 | 58.1 | 12 | 1.89 | 141 | 0 |
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| 1921 | 68.1 | 13 | 77.7 | 22 | 58.6 | 7 | 4.43 | 71 | 0 |
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| 1920 | 64.8 | 68 | 74.9 | 69 | 54.7 | 62 | 3.83 | 84 | 0 |
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| 1919 | 66.1 | 39 | 75.7 | 52 | 56.4 | 43 | 2.58 | 124 | 0 |
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| 1918 | 61.3 | 119 | 71.4 | 120 | 51.3 | 116 | 2.93 | 114 | 0 |
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| 1917 | 60.4 | 127 | 69.7 | 129 | 51 | 118 | 2.69 | 119 | 0 |
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| 1916 | 64.8 | 68 | 76.1 | 44 | 53.6 | 81 | 2.62 | 122 | 0 |
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| 1915 | 66.2 | 37 | 75.5 | 55 | 57 | 31 | 3.39 | 100 | 0 |
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| 1914 | 63.9 | 88 | 75.1 | 65 | 52.7 | 95 | 0.52 | 151 | 0 |
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| 1913 | 64.4 | 78 | 73 | 103 | 55.9 | 45 | 8.68 | 14 | 0 |
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| 1912 | 65.4 | 53 | 75.4 | 61 | 55.4 | 51 | 6.04 | 41 | 0 |
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| 1911 | 63.1 | 101 | 72.8 | 106 | 53.5 | 82 | 3.63 | 90 | 0 |
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| 1910 | 67.1 | 27 | 77.7 | 22 | 56.5 | 41 | 2.58 | 124 | 0 |
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| 1909 | 64.1 | 84 | 75.5 | 55 | 52.6 | 98 | 2.45 | 131 | 0 |
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| 1908 | 64.1 | 84 | 75.8 | 49 | 52.4 | 105 | 2.07 | 139 | 0 |
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| 1907 | 64.7 | 74 | 74.6 | 72 | 54.9 | 60 | 10.35 | 5 | 0 |
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| 1906 | 66.9 | 28 | 77.4 | 29 | 56.5 | 41 | 5.26 | 53 | 0 |
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| 1905 | 65.5 | 51 | 77.1 | 32 | 53.9 | 76 | 3.55 | 93 | 0 |
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| 1904 | 62.4 | 109 | 72.8 | 106 | 52 | 109 | 3.18 | 108 | 0 |
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| 1903 | 64.4 | 78 | 74.5 | 79 | 54.3 | 69 | 6.61 | 33 | 0 |
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| 1902 | 63.4 | 92 | 73.3 | 98 | 53.5 | 82 | 9.23 | 11 | 0 |
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| 1901 | 63.5 | 91 | 74.3 | 83 | 52.7 | 95 | 4.20 | 76 | 0 |
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| 1900 | 69.7 | 6 | 78.9 | 12 | 60.5 | 4 | 1.91 | 140 | 0 |
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| 1899 | 61.3 | 119 | 72.5 | 110 | 50.1 | 124 | 6.32 | 36 | 0 |
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| 1898 | 68.2 | 11 | 79.2 | 11 | 57.3 | 23 | 2.11 | 138 | 0 |
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| 1897 | | | | | | | 1.56 | 143 | 39 |
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| 1896 | | | | | | | 3.68 | 89 | 39 |
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| 1895 | | | | | | | 0.52 | 151 | 39 |
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| 1894 | | | | | | | 8.10 | 21 | 39 |
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| 1892 | | | | | | | 2.71 | 117 | 39 |
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| 1889 | 60.8 | 125 | 70.6 | 127 | 51 | 118 | 4.61 | 66 | 0 |
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| 1888 | 58.9 | 130 | 69 | 131 | 48.8 | 127 | 8.51 | 16 | 0 |
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| 1886 | | | | | | | 1.00 | 148 | 39 |
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| 1885 | | | | | | | 2.29 | 135 | 39 |
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| 1884 | | | | | | | 1.30 | 146 | 39 |
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| 1883 | | | | | | | 4.98 | 59 | 39 |
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| 1882 | | | | | | | 4.65 | 64 | 39 |
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| 1881 | | | | | | | 2.61 | 123 | 39 |
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| 1880 | | | | | | | 2.50 | 129 | 39 |
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| 1878 | | | | | | | 3.42 | 98 | 39 |
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| 1877 | | | | | | | 9.79 | 6 | 39 |
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| 1875 | | | | | | | 2.45 | 131 | 39 |
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| 1874 | | | | | | | 4.87 | 61 | 39 |
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| 1873 | | | | | | | 7.55 | 25 | 39 |
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| 1872 | | | | | | | 4.28 | 75 | 39 |
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| 1871 | | | | | | | 3.26 | 106 | 39 |
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| 1870 | | | | | | | 3.30 | 104 | 39 |
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| 1869 | | | | | | | 11.56 | 3 | 39 |
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