Every 1 September to 9 October in Seattle City, WA from 1894 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 | 61.4 | 30 | 69.9 | 27 | 52.8 | 43 | 1.90 | 73 | 0 |
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| 2025 | 64.1 | 5 | 73.6 | 2 | 54.6 | 8 | 1.20 | 106 | 0 |
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| 2024 | 62.4 | 17 | 71.5 | 14 | 53.4 | 28 | 1.90 | 73 | 0 |
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| 2023 | 61.7 | 23 | 70.6 | 22 | 52.9 | 38 | 4.17 | 15 | 0 |
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| 2022 | 65 | 1 | 75.1 | 1 | 55 | 7 | 0.13 | 131 | 0 |
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| 2021 | 60.6 | 44 | 69.2 | 40 | 52 | 67 | 3.31 | 26 | 0 |
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| 2020 | 64.4 | 3 | 72.7 | 7 | 56.1 | 1 | 4.70 | 10 | 0 |
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| 2019 | 60.2 | 52 | 67.4 | 67 | 52.9 | 38 | 4.15 | 17 | 0 |
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| 2018 | 60.2 | 52 | 68.3 | 51 | 52.1 | 63 | 2.65 | 48 | 0 |
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| 2017 | 62.8 | 12 | 72.8 | 6 | 52.7 | 44 | 1.51 | 98 | 0 |
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| 2016 | 60.5 | 45 | 68.9 | 43 | 52.1 | 63 | 3.05 | 34 | 0 |
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| 2015 | 60.1 | 56 | 68.3 | 51 | 51.9 | 69 | 1.72 | 91 | 0 |
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| 2014 | 64.2 | 4 | 73.1 | 3 | 55.3 | 5 | 3.01 | 37 | 0 |
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| 2013 | 61.1 | 36 | 68.5 | 46 | 53.7 | 19 | 5.85 | 4 | 0 |
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| 2012 | 61.6 | 26 | 72.2 | 9 | 51 | 97 | 0.24 | 127 | 0 |
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| 2011 | 62.7 | 14 | 71.6 | 12 | 53.7 | 19 | 1.80 | 83 | 0 |
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| 2010 | 61.4 | 30 | 68.3 | 51 | 54.5 | 10 | 4.73 | 9 | 0 |
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| 2009 | 60.4 | 46 | 69.8 | 32 | 51.1 | 91 | 2.38 | 57 | 0 |
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| 2008 | 59.7 | 73 | 67.8 | 60 | 51.6 | 77 | 1.96 | 69 | 0 |
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| 2007 | 59 | 87 | 66.5 | 86 | 51.5 | 81 | 2.69 | 47 | 0 |
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| 2006 | 60.8 | 39 | 70.7 | 20 | 50.8 | 101 | 1.83 | 82 | 0 |
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| 2005 | 58.8 | 92 | 67.4 | 67 | 50.3 | 113 | 2.48 | 55 | 0 |
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| 2004 | 59.6 | 76 | 67.3 | 73 | 52 | 67 | 2.81 | 43 | 0 |
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| 2003 | 62 | 20 | 70.8 | 17 | 53.2 | 32 | 1.96 | 69 | 0 |
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| 2002 | 59.9 | 62 | 69.3 | 37 | 50.5 | 107 | 1.02 | 113 | 0 |
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| 2001 | 59.8 | 66 | 68.5 | 46 | 51 | 97 | 0.69 | 118 | 0 |
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| 2000 | 60.2 | 52 | 69.3 | 37 | 51.1 | 91 | 1.96 | 69 | 0 |
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| 1999 | 59.9 | 62 | 70.1 | 26 | 49.6 | 126 | 1.73 | 88 | 0 |
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| 1997 | 61.6 | 26 | 69.5 | 35 | 53.6 | 22 | 5.91 | 3 | 0 |
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| 1996 | 59.8 | 66 | 68.3 | 51 | 51.4 | 85 | 3.03 | 35 | 0 |
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| 1995 | 62.9 | 10 | 71.9 | 11 | 53.9 | 15 | 2.05 | 63 | 0 |
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| 1994 | 63.3 | 6 | 73 | 4 | 53.5 | 24 | 1.08 | 109 | 1 |
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| 1993 | 61.7 | 23 | 71.6 | 12 | 51.7 | 74 | 0.54 | 121 | 0 |
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| 1992 | 58 | 103 | 66.2 | 90 | 49.7 | 123 | 2.63 | 50 | 0 |
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| 1991 | 60.8 | 39 | 70.7 | 20 | 51.3 | 90 | 0.07 | 132 | 2 |
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| 1990 | 60.9 | 38 | 68.8 | 44 | 52.9 | 38 | 1.77 | 87 | 0 |
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| 1989 | 61.2 | 34 | 69.9 | 27 | 52.4 | 54 | 0.19 | 130 | 0 |
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| 1988 | 59.9 | 62 | 67.3 | 73 | 52.6 | 47 | 1.87 | 78 | 0 |
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| 1987 | 61.8 | 22 | 70.8 | 17 | 52.7 | 44 | 0.52 | 122 | 0 |
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| 1986 | 60 | 59 | 66.7 | 81 | 53.3 | 29 | 2.03 | 67 | 0 |
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| 1985 | 57.6 | 112 | 65.2 | 104 | 50 | 120 | 1.94 | 72 | 0 |
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| 1984 | 60.3 | 49 | 68.2 | 56 | 52.3 | 56 | 2.05 | 63 | 0 |
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| 1983 | 57.9 | 105 | 65.4 | 97 | 50.5 | 107 | 2.64 | 49 | 0 |
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| 1982 | 59.7 | 73 | 67.1 | 75 | 52.2 | 60 | 2.78 | 45 | 0 |
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| 1981 | 60.3 | 49 | 68 | 57 | 52.6 | 47 | 8.56 | 1 | 0 |
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| 1980 | 61.3 | 33 | 69.7 | 33 | 52.9 | 38 | 1.54 | 97 | 0 |
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| 1979 | 62.2 | 18 | 69.9 | 27 | 54.4 | 12 | 1.86 | 79 | 0 |
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| 1978 | 58.9 | 88 | 65.3 | 101 | 52.6 | 47 | 5.79 | 5 | 0 |
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| 1977 | 57.2 | 117 | 64.2 | 114 | 50.2 | 115 | 2.98 | 38 | 0 |
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| 1976 | 60.8 | 39 | 67.8 | 60 | 53.8 | 17 | 1.63 | 94 | 0 |
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| 1975 | 61 | 37 | 69.6 | 34 | 52.3 | 56 | 2.04 | 65 | 0 |
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| 1974 | 62.7 | 14 | 72.7 | 7 | 52.6 | 47 | 0.27 | 125 | 0 |
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| 1973 | 58.9 | 88 | 67 | 76 | 50.9 | 99 | 2.83 | 42 | 0 |
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| 1972 | 57.3 | 116 | 63.9 | 117 | 50.7 | 104 | 3.28 | 27 | 0 |
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| 1971 | 60.4 | 46 | 67.7 | 64 | 53 | 35 | 3.08 | 31 | 0 |
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| 1970 | 59.2 | 85 | 65.9 | 93 | 52.5 | 51 | 2.87 | 41 | 0 |
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| 1969 | 59.8 | 66 | 66.1 | 92 | 53.6 | 22 | 6.32 | 2 | 0 |
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| 1968 | 59.8 | 66 | 65.9 | 93 | 53.7 | 19 | 2.17 | 62 | 0 |
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| 1967 | 64.5 | 2 | 73 | 4 | 55.9 | 2 | 2.79 | 44 | 0 |
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| 1966 | 62.6 | 16 | 69.4 | 36 | 55.7 | 4 | 1.78 | 85 | 0 |
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| 1965 | 59.9 | 62 | 66.7 | 81 | 53 | 35 | 1.62 | 95 | 0 |
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| 1964 | 60.2 | 52 | 66.9 | 78 | 53.5 | 24 | 2.54 | 54 | 0 |
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| 1963 | 63.3 | 6 | 70.8 | 17 | 55.8 | 3 | 1.05 | 111 | 0 |
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| 1962 | 60.7 | 43 | 68 | 57 | 53.3 | 29 | 4.56 | 11 | 0 |
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| 1961 | 59.8 | 66 | 67.4 | 67 | 52.1 | 63 | 1.34 | 101 | 0 |
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| 1960 | 59.3 | 82 | 66.2 | 90 | 52.3 | 56 | 1.86 | 79 | 0 |
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| 1959 | 58.2 | 99 | 63.9 | 117 | 52.5 | 51 | 2.71 | 46 | 0 |
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| 1958 | 61.4 | 30 | 68.5 | 46 | 54.3 | 13 | 1.72 | 91 | 0 |
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| 1957 | 63 | 8 | 71.4 | 15 | 54.6 | 8 | 1.21 | 105 | 0 |
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| 1956 | 59.8 | 66 | 66.8 | 79 | 52.7 | 44 | 2.22 | 59 | 0 |
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| 1955 | 58.5 | 96 | 65.6 | 96 | 51.5 | 81 | 4.11 | 18 | 0 |
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| 1954 | 59.5 | 78 | 65.7 | 95 | 53.3 | 29 | 1.73 | 88 | 0 |
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| 1953 | 61.5 | 28 | 69.1 | 41 | 53.9 | 15 | 4.19 | 14 | 0 |
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| 1952 | 63 | 8 | 72.1 | 10 | 53.8 | 17 | 0.24 | 127 | 0 |
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| 1951 | 61.5 | 28 | 69.9 | 27 | 53 | 35 | 3.40 | 25 | 0 |
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| 1950 | 59.6 | 76 | 67.8 | 60 | 51.4 | 85 | 3.99 | 20 | 0 |
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| 1949 | 60.3 | 49 | 68.3 | 51 | 52.3 | 56 | 2.98 | 38 | 0 |
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| 1948 | 58.7 | 95 | 66.6 | 83 | 50.8 | 101 | 4.10 | 19 | 0 |
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| 1947 | 60.4 | 46 | 67.8 | 60 | 53.1 | 34 | 1.37 | 100 | 0 |
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| 1946 | 59.3 | 82 | 66.8 | 79 | 51.8 | 71 | 1.80 | 83 | 0 |
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| 1945 | 59.5 | 78 | 67.6 | 65 | 51.5 | 81 | 3.47 | 24 | 0 |
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| 1944 | 61.9 | 21 | 70.2 | 25 | 53.5 | 24 | 1.19 | 107 | 0 |
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| 1943 | 62.9 | 10 | 71.4 | 15 | 54.5 | 10 | 0.49 | 123 | 0 |
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| 1942 | 61.2 | 34 | 69.3 | 37 | 53.2 | 32 | 0.27 | 125 | 0 |
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| 1941 | 58 | 103 | 63.7 | 123 | 52.2 | 60 | 4.21 | 13 | 0 |
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| 1940 | 62.8 | 12 | 70.4 | 23 | 55.1 | 6 | 2.95 | 40 | 0 |
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| 1939 | 59.3 | 82 | 67 | 76 | 51.6 | 77 | 2.18 | 61 | 0 |
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| 1938 | 62.2 | 18 | 70.3 | 24 | 54.1 | 14 | 1.17 | 108 | 0 |
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| 1937 | 59.8 | 66 | 67.5 | 66 | 52.1 | 63 | 2.48 | 55 | 1 |
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| 1936 | 59.4 | 80 | 67.4 | 67 | 51.4 | 85 | 1.72 | 91 | 0 |
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| 1935 | 61.7 | 23 | 69.9 | 27 | 53.5 | 24 | 1.88 | 76 | 0 |
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| 1934 | 59.4 | 80 | 66.4 | 89 | 52.4 | 54 | 2.56 | 53 | 0 |
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| 1933 | 57.7 | 110 | 64.9 | 107 | 50.4 | 111 | 3.02 | 36 | 0 |
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| 1932 | 60.1 | 56 | 68.8 | 44 | 51.4 | 85 | 0.24 | 127 | 0 |
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| 1931 | 57.8 | 107 | 63.8 | 120 | 51.9 | 69 | 3.28 | 27 | 0 |
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| 1930 | 58.1 | 102 | 64.6 | 111 | 51.7 | 74 | 1.78 | 85 | 0 |
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| 1929 | 59.7 | 73 | 67.9 | 59 | 51.5 | 81 | 0.56 | 120 | 0 |
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| 1928 | 57.4 | 114 | 63.8 | 120 | 50.9 | 99 | 2.62 | 51 | 0 |
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| 1927 | 56.9 | 122 | 63.1 | 127 | 50.6 | 105 | 4.97 | 7 | 0 |
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| 1926 | 57.5 | 113 | 64.4 | 113 | 50.5 | 107 | 1.25 | 103 | 0 |
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| 1925 | 58.2 | 99 | 65.4 | 97 | 51.1 | 91 | 0.59 | 119 | 0 |
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| 1924 | 57.8 | 107 | 65.4 | 97 | 50.2 | 115 | 3.07 | 32 | 0 |
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| 1923 | 60.1 | 56 | 67.4 | 67 | 52.9 | 38 | 1.89 | 75 | 0 |
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| 1922 | 59.1 | 86 | 66.5 | 86 | 51.7 | 74 | 1.46 | 99 | 0 |
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| 1921 | 56.6 | 125 | 63.9 | 117 | 49.2 | 128 | 1.84 | 81 | 0 |
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| 1920 | 57 | 119 | 62.8 | 130 | 51.1 | 91 | 5.00 | 6 | 0 |
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| 1919 | 57.9 | 105 | 65.2 | 104 | 50.6 | 105 | 2.20 | 60 | 0 |
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| 1918 | 60.8 | 39 | 69.1 | 41 | 52.5 | 51 | 0.92 | 114 | 0 |
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| 1917 | 58.8 | 92 | 65.4 | 97 | 52.2 | 60 | 1.33 | 102 | 0 |
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| 1916 | 57 | 119 | 65.3 | 101 | 48.7 | 129 | 0.70 | 117 | 0 |
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| 1915 | 58.2 | 99 | 65.2 | 104 | 51.1 | 91 | 1.07 | 110 | 0 |
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| 1914 | 56.2 | 131 | 62.1 | 132 | 50.4 | 111 | 1.73 | 88 | 0 |
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| 1913 | 56.7 | 123 | 64 | 116 | 49.5 | 127 | 3.24 | 29 | 0 |
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| 1912 | 57.4 | 114 | 64.9 | 107 | 49.9 | 122 | 1.88 | 76 | 0 |
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| 1911 | 56.6 | 125 | 63.1 | 127 | 50.2 | 115 | 3.52 | 22 | 0 |
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| 1910 | 57 | 119 | 63.2 | 125 | 50.8 | 101 | 4.16 | 16 | 0 |
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| 1909 | 58.8 | 92 | 66.6 | 83 | 51.1 | 91 | 1.23 | 104 | 0 |
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| 1908 | 56.6 | 125 | 64.5 | 112 | 48.6 | 131 | 0.73 | 116 | 0 |
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| 1907 | 58.3 | 97 | 64.8 | 109 | 51.8 | 71 | 3.50 | 23 | 0 |
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| 1906 | 58.9 | 88 | 66.5 | 86 | 51.4 | 85 | 3.58 | 21 | 0 |
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| 1905 | 57.8 | 107 | 63.8 | 120 | 51.8 | 71 | 4.93 | 8 | 0 |
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| 1904 | 60 | 59 | 68.4 | 49 | 51.6 | 77 | 0.31 | 124 | 0 |
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| 1903 | 56.7 | 123 | 63 | 129 | 50.3 | 113 | 4.36 | 12 | 0 |
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| 1902 | 58.3 | 97 | 66.6 | 83 | 50 | 120 | 2.24 | 58 | 0 |
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| 1901 | 57.7 | 110 | 65.3 | 101 | 50.2 | 115 | 2.57 | 52 | 0 |
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| 1900 | 57.2 | 117 | 64.7 | 110 | 49.7 | 123 | 0.78 | 115 | 0 |
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| 1899 | 60 | 59 | 68.4 | 49 | 51.6 | 77 | 1.59 | 96 | 0 |
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| 1898 | 58.9 | 88 | 67.4 | 67 | 50.5 | 107 | 3.07 | 32 | 0 |
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| 1897 | 56.5 | 129 | 63.3 | 124 | 49.7 | 123 | 2.04 | 65 | 0 |
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| 1896 | 56.4 | 130 | 64.1 | 115 | 48.7 | 129 | 2.01 | 68 | 0 |
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| 1895 | 55.5 | 132 | 62.4 | 131 | 48.5 | 132 | 1.03 | 112 | 0 |
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| 1894 | 56.6 | 125 | 63.2 | 125 | 50.1 | 119 | 3.12 | 30 | 2 |
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