Every 1 September to 9 October in Jefferson City, MO from 1895 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 | 75.1 | 1 | 86.9 | 6 | 63.3 | 2 | 1.86 | 105 | 0 |
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| 2025 | 70.9 | 16 | 83.8 | 18 | 57.9 | 26 | 2.56 | 91 | 0 |
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| 2024 | 69.8 | 31 | 82.5 | 30 | 57 | 34 | 2.93 | 81 | 0 |
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| 2023 | 70.7 | 18 | 84 | 16 | 57.3 | 33 | 0.83 | 118 | 0 |
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| 2022 | 67.7 | 54 | 81.2 | 44 | 54.3 | 63 | 1.19 | 112 | 0 |
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| 2021 | 72.7 | 7 | 84.5 | 12 | 61 | 6 | 3.72 | 70 | 0 |
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| 2020 | 66.8 | 65 | 78.1 | 96 | 55.6 | 53 | 4.17 | 65 | 0 |
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| 2019 | 74.3 | 3 | 84.1 | 15 | 64.6 | 1 | 2.83 | 85 | 0 |
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| 2018 | 73.4 | 6 | 84.6 | 11 | 62.2 | 3 | 6.98 | 27 | 0 |
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| 2017 | 70.6 | 20 | 82.2 | 31 | 59.3 | 12 | 5.58 | 44 | 1 |
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| 2016 | 70.5 | 24 | 81.3 | 41 | 59.7 | 10 | 7.11 | 26 | 0 |
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| 2015 | 69.7 | 34 | 80.7 | 56 | 58.6 | 19 | 0.69 | 120 | 0 |
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| 2014 | 66.3 | 76 | 78.3 | 91 | 54.3 | 63 | 4.96 | 53 | 1 |
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| 2013 | 69.4 | 37 | 81.2 | 44 | 57.6 | 30 | 3.48 | 73 | 0 |
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| 2012 | 64.9 | 95 | 76.6 | 108 | 53.2 | 81 | 1.48 | 110 | 0 |
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| 2011 | 65.2 | 91 | 77.5 | 101 | 52.8 | 90 | 3.27 | 75 | 0 |
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| 2010 | 66.8 | 65 | 78.4 | 90 | 55.3 | 55 | 6.78 | 30 | 0 |
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| 2009 | 64.7 | 98 | 74.9 | 119 | 54.5 | 60 | 12.25 | 5 | 0 |
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| 2008 | 67.1 | 62 | 77.4 | 103 | 56.8 | 39 | 9.40 | 11 | 0 |
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| 2007 | 71.7 | 9 | 83.7 | 19 | 59.8 | 9 | 2.13 | 100 | 0 |
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| 2006 | 65.8 | 82 | 78.8 | 83 | 52.9 | 88 | 1.04 | 115 | 0 |
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| 2005 | 70 | 28 | 81 | 50 | 59.1 | 14 | 6.21 | 35 | 0 |
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| 2004 | 66.6 | 72 | 79.2 | 79 | 54 | 70 | 2.28 | 97 | 0 |
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| 2003 | 63 | 112 | 74.8 | 120 | 51.3 | 106 | 9.98 | 9 | 0 |
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| 2002 | 68.6 | 44 | 80.5 | 61 | 56.7 | 40 | 3.27 | 75 | 0 |
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| 2001 | 64.7 | 98 | 77.1 | 106 | 52.3 | 100 | 5.60 | 43 | 0 |
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| 2000 | 65.8 | 82 | 78.7 | 86 | 53 | 86 | 4.44 | 61 | 0 |
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| 1999 | 63.4 | 109 | 77.2 | 104 | 49.6 | 116 | 2.91 | 82 | 0 |
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| 1998 | | | | | | | | | 8 |
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| 1997 | 69.1 | 42 | 80.2 | 65 | 58 | 25 | | | 1 |
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| 1996 | 63.7 | 108 | 74 | 122 | 53.4 | 78 | 5.01 | 52 | 0 |
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| 1995 | 64.7 | 98 | 76.2 | 114 | 53.3 | 80 | 1.60 | 107 | 0 |
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| 1994 | 66.4 | 74 | 77.5 | 101 | 55.4 | 54 | 3.67 | 72 | 0 |
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| 1993 | 62.9 | 113 | 72.8 | 123 | 52.9 | 88 | 13.10 | 3 | 0 |
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| 1992 | 64.8 | 97 | 76.3 | 112 | 53.4 | 78 | 4.47 | 60 | 0 |
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| 1991 | 66 | 79 | 76.5 | 110 | 55.1 | 56 | 5.73 | 41 | 1 |
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| 1990 | 70.7 | 18 | 82.7 | 27 | 58.6 | 19 | 4.92 | 54 | 0 |
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| 1989 | 63.3 | 110 | 76.9 | 107 | 49.7 | 115 | 1.92 | 104 | 0 |
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| 1988 | 64.2 | 103 | 78.5 | 89 | 50.2 | 112 | 2.84 | 84 | 2 |
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| 1987 | | | 77.9 | 98 | | | 2.88 | 83 | 4 |
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| 1986 | 66.8 | 65 | 80.2 | 65 | 53.6 | 75 | 15.24 | 1 | 2 |
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| 1985 | 65 | 93 | 78 | 97 | 51.9 | 103 | 1.36 | 111 | 0 |
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| 1984 | | | 78.3 | 91 | | | 5.78 | 40 | 20 |
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| 1983 | | | 81.5 | 37 | | | 2.33 | 94 | 12 |
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| 1982 | | | 77.7 | 99 | | | 5.87 | 37 | 6 |
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| 1981 | 64.9 | 95 | 79.2 | 79 | 50.7 | 108 | 2.20 | 99 | 0 |
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| 1980 | 68.3 | 49 | 82.8 | 25 | 53.8 | 73 | 1.51 | 109 | 0 |
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| 1979 | 65.6 | 86 | 80.8 | 52 | 50.4 | 110 | 0.63 | 122 | 0 |
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| 1978 | 69.3 | 38 | 82.8 | 25 | 55.9 | 49 | 2.46 | 92 | 0 |
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| 1977 | 65.7 | 85 | 78.2 | 94 | 53.2 | 81 | 8.17 | 18 | 0 |
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| 1976 | 66.8 | 65 | 81.2 | 44 | 52.4 | 97 | 2.75 | 87 | 1 |
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| 1975 | | | | | | | | | 33 |
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| 1974 | | | | | | | 3.18 | 79 | 4 |
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| 1973 | | | 81.3 | 41 | | | 5.63 | 42 | 14 |
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| 1972 | 69 | 43 | 81.9 | 34 | 56.1 | 46 | 5.90 | 36 | 2 |
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| 1971 | 69.2 | 39 | 82.7 | 27 | 55.7 | 50 | 5.58 | 44 | 3 |
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| 1970 | 70.1 | 26 | 83.3 | 20 | 57 | 34 | 11.98 | 6 | 1 |
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| 1969 | 67.7 | 54 | 81.2 | 44 | 54.3 | 63 | 8.96 | 14 | 0 |
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| 1968 | 64.6 | 101 | 79.3 | 76 | 49.8 | 114 | 6.36 | 34 | 0 |
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| 1967 | 66 | 79 | 79.6 | 74 | 52.4 | 97 | 4.88 | 56 | 0 |
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| 1966 | 64.2 | 103 | 79.3 | 76 | 49 | 117 | 1.61 | 106 | 0 |
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| 1965 | 65.8 | 82 | 78.8 | 83 | 52.8 | 90 | 6.42 | 32 | 2 |
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| 1964 | | | | | | | | | 9 |
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| 1963 | | | | | | | | | 30 |
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| 1962 | 65.1 | 92 | 77.2 | 104 | 53.1 | 85 | 6.87 | 28 | 0 |
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| 1961 | | | 80.4 | 63 | 52.7 | 92 | 4.22 | 64 | 5 |
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| 1960 | 70.4 | 25 | 86.3 | 7 | 54.5 | 60 | 1.00 | 116 | 0 |
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| 1959 | 68.2 | 50 | 80.6 | 59 | 56 | 47 | 8.93 | 15 | 1 |
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| 1958 | 66.7 | 69 | 79.7 | 72 | 53.7 | 74 | 7.50 | 22 | 0 |
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| 1957 | | | 80 | 68 | | | 2.30 | 96 | 5 |
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| 1956 | 71.5 | 12 | 87.2 | 4 | 55.7 | 50 | 0.93 | 117 | 0 |
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| 1955 | 70.9 | 16 | 83.9 | 17 | 57.9 | 26 | 8.13 | 19 | 2 |
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| 1954 | 72.6 | 8 | 87.1 | 5 | 58.2 | 22 | 5.03 | 51 | 0 |
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| 1953 | 69.9 | 30 | 85.1 | 8 | 54.7 | 57 | 5.17 | 50 | 1 |
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| 1952 | 63.1 | 111 | 79.7 | 72 | 46.5 | 119 | 1.06 | 114 | 0 |
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| 1951 | 65.5 | 87 | 76.3 | 112 | 54.7 | 57 | 9.34 | 12 | 0 |
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| 1950 | 64.5 | 102 | 75.5 | 117 | 53.5 | 76 | 2.31 | 95 | 1 |
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| 1949 | 62.9 | 113 | 75.6 | 116 | 50.1 | 113 | 8.44 | 17 | 0 |
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| 1948 | 67 | 63 | 80 | 68 | 53.9 | 72 | 2.21 | 98 | 1 |
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| 1947 | 70.6 | 20 | 84.3 | 14 | 57 | 34 | 4.50 | 59 | 1 |
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| 1946 | 66.6 | 72 | 80.6 | 59 | 52.6 | 93 | 1.60 | 107 | 0 |
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| 1945 | 66.4 | 74 | 78.7 | 86 | 54.4 | 62 | | | 1 |
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| 1944 | 68.1 | 52 | 79.6 | 74 | 56.9 | 37 | 7.25 | 23 | 2 |
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| 1943 | 64.2 | 103 | 77.6 | 100 | 50.8 | 107 | 5.39 | 48 | 0 |
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| 1942 | 66 | 79 | 78.8 | 83 | 53.2 | 81 | 5.43 | 47 | 1 |
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| 1941 | 69.2 | 39 | 80.4 | 63 | 58.1 | 24 | 14.34 | 2 | 1 |
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| 1940 | 67.5 | 57 | 83.1 | 21 | 51.7 | 104 | 0.68 | 121 | 2 |
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| 1939 | 73.7 | 5 | 89.8 | 1 | 57.6 | 30 | 0.70 | 119 | 0 |
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| 1938 | 70.6 | 20 | 85 | 9 | 56.4 | 44 | 2.59 | 90 | 1 |
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| 1937 | 67.9 | 53 | 81.3 | 41 | 54.3 | 63 | 3.19 | 78 | 1 |
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| 1936 | 69.7 | 34 | 79.3 | 76 | 60.1 | 8 | 10.52 | 8 | 3 |
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| 1935 | 64 | 107 | 75.4 | 118 | 52.6 | 93 | 3.21 | 77 | 2 |
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| 1934 | 65.4 | 88 | 76.6 | 108 | 54.2 | 69 | 9.55 | 10 | 3 |
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| 1933 | 71.6 | 10 | 84.4 | 13 | 58.8 | 16 | 3.76 | 68 | 0 |
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| 1932 | 66.7 | 69 | 81.1 | 49 | 52.2 | 102 | 2.11 | 101 | 0 |
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| 1931 | 74.4 | 2 | 87.8 | 3 | 60.3 | 7 | 8.83 | 16 | 3 |
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| 1930 | 69.8 | 31 | 81.6 | 36 | 57.8 | 28 | 6.81 | 29 | 2 |
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| 1929 | 66.7 | 69 | 79.9 | 70 | 53.5 | 76 | 3.97 | 66 | 1 |
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| 1928 | 66.3 | 76 | 79.9 | 70 | 52.6 | 93 | 2.46 | 92 | 2 |
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| 1927 | 70.1 | 26 | 82.1 | 33 | 57.6 | 30 | 9.11 | 13 | 2 |
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| 1926 | | | | | 59.4 | 11 | 12.27 | 4 | 4 |
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| 1925 | 71.6 | 10 | 81.5 | 37 | 61.7 | 4 | 6.42 | 32 | 1 |
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| 1924 | 64.2 | 103 | 75.9 | 115 | 52.4 | 97 | 5.45 | 46 | 1 |
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| 1923 | 67.4 | 59 | 78.3 | 91 | 56.5 | 41 | 3.69 | 71 | 0 |
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| 1922 | 71.4 | 14 | 84.8 | 10 | 57.8 | 28 | 4.42 | 62 | 3 |
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| 1921 | 69.8 | 31 | 80.8 | 52 | 58.5 | 21 | 8.13 | 19 | 2 |
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| 1920 | 68.6 | 44 | 81 | 50 | 56.5 | 41 | 3.32 | 74 | 2 |
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| 1919 | 70.6 | 20 | 83.1 | 21 | 58.2 | 22 | 4.90 | 55 | 0 |
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| 1918 | | | | | 50.7 | 108 | 5.85 | 39 | 15 |
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| 1917 | 65.3 | 90 | 78.6 | 88 | 52.3 | 100 | 1.98 | 103 | 1 |
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| 1916 | 68.4 | 47 | 82.7 | 27 | 54.3 | 63 | 1.14 | 113 | 2 |
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| 1915 | 67.4 | 59 | 78.2 | 94 | 56.2 | 45 | 3.83 | 67 | 1 |
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| 1914 | 69.7 | 34 | 80.7 | 56 | 58.7 | 18 | 7.63 | 21 | 1 |
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| 1913 | 67.7 | 54 | 80.8 | 52 | 54.7 | 57 | | | 2 |
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| 1912 | 65 | 93 | 79 | 82 | 51.4 | 105 | 2.74 | 88 | 1 |
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| 1911 | 71.1 | 15 | 82.9 | 24 | 59 | 15 | 7.19 | 24 | 1 |
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| 1910 | 67.2 | 61 | 80.2 | 65 | 54 | 70 | 6.63 | 31 | 2 |
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| 1909 | 68.2 | 50 | 83.1 | 21 | 53.2 | 81 | 2.80 | 86 | 0 |
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| 1908 | 67.5 | 57 | 82.2 | 31 | 52.6 | 93 | 2.66 | 89 | 1 |
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| 1907 | 66.9 | 64 | 80.8 | 52 | 53 | 86 | 3.73 | 69 | 1 |
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| 1906 | 69.2 | 39 | 81.5 | 37 | 56.9 | 37 | 4.30 | 63 | 0 |
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| 1905 | 68.5 | 46 | 80.5 | 61 | 56.5 | 41 | 11.73 | 7 | 0 |
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| 1904 | 68.4 | 47 | 80.7 | 56 | 56 | 47 | 5.18 | 49 | 2 |
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| 1903 | | | 79.1 | 81 | 55.7 | 50 | 4.61 | 58 | 4 |
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| 1902 | 61.6 | 115 | 74.6 | 121 | 48.7 | 118 | 5.87 | 37 | 0 |
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| 1901 | | | | | | | | | 10 |
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| 1900 | | | | | | | 4.74 | 57 | 12 |
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| 1899 | 66.1 | 78 | 81.9 | 34 | 50.4 | 110 | 3.16 | 80 | 0 |
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| 1898 | 71.5 | 12 | 81.4 | 40 | 61.5 | 5 | 7.14 | 25 | 0 |
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| 1897 | 73.9 | 4 | 88.2 | 2 | 59.3 | 12 | 0.20 | 123 | 2 |
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| 1896 | 65.4 | 88 | 76.4 | 111 | 54.3 | 63 | 2.05 | 102 | 0 |
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| 1895 | 70 | 28 | 81.2 | 44 | 58.8 | 16 | | | 0 |
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