Every 1 September to 10 October in Moline, IL from 1872 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 | 68.2 | 9 | 78.3 | 21 | 58.2 | 6 | 8.99 | 14 | 0 |
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| 2025 | 67.1 | 19 | 81 | 5 | 53.2 | 71 | 1.94 | 131 | 0 |
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| 2024 | 66.4 | 28 | 81 | 5 | 51.8 | 95 | 0.59 | 153 | 0 |
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| 2023 | 67 | 21 | 78.6 | 18 | 55.3 | 36 | 5.08 | 51 | 0 |
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| 2022 | 63.9 | 71 | 76.3 | 44 | 51.6 | 101 | 3.75 | 78 | 0 |
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| 2021 | 69.8 | 3 | 81.5 | 3 | 58 | 9 | 1.62 | 140 | 0 |
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| 2020 | 62.7 | 96 | 73.9 | 86 | 51.5 | 103 | 6.70 | 27 | 0 |
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| 2019 | 69.1 | 4 | 78.8 | 16 | 59.4 | 3 | 9.39 | 11 | 0 |
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| 2018 | 67.5 | 17 | 77.7 | 25 | 57.2 | 13 | 9.24 | 13 | 0 |
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| 2017 | 67.6 | 13 | 80.3 | 8 | 54.9 | 41 | 4.52 | 62 | 0 |
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| 2016 | 68.5 | 7 | 78.9 | 14 | 58.2 | 6 | 2.72 | 107 | 0 |
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| 2015 | 67.6 | 13 | 78.7 | 17 | 56.6 | 19 | 3.01 | 98 | 0 |
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| 2014 | 60.8 | 126 | 72.2 | 117 | 49.5 | 128 | 7.07 | 25 | 0 |
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| 2013 | 66.6 | 24 | 79.7 | 10 | 53.5 | 67 | 1.79 | 135 | 0 |
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| 2012 | 59.4 | 145 | 72.6 | 110 | 46.1 | 151 | 2.43 | 117 | 0 |
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| 2011 | 61.3 | 119 | 73.5 | 95 | 49.2 | 132 | 2.66 | 110 | 0 |
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| 2010 | 64.5 | 58 | 76.3 | 44 | 52.6 | 82 | 4.50 | 63 | 0 |
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| 2009 | 60.5 | 132 | 70.9 | 136 | 50 | 123 | 3.25 | 92 | 0 |
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| 2008 | 63.2 | 86 | 74.3 | 75 | 52 | 92 | 12.07 | 2 | 0 |
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| 2007 | 68.9 | 5 | 81.9 | 2 | 55.8 | 29 | 1.52 | 142 | 0 |
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| 2006 | 63.6 | 78 | 74.9 | 65 | 52.2 | 88 | 1.38 | 145 | 0 |
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| 2005 | 68.3 | 8 | 80 | 9 | 56.6 | 19 | 2.17 | 126 | 0 |
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| 2004 | 64 | 70 | 77.4 | 31 | 50.6 | 114 | 2.68 | 109 | 0 |
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| 2003 | 61.5 | 114 | 73.9 | 86 | 49 | 134 | 3.39 | 89 | 0 |
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| 2002 | 66.5 | 27 | 79.3 | 11 | 53.7 | 65 | 2.04 | 129 | 0 |
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| 2001 | 61.5 | 114 | 72.7 | 105 | 50.2 | 120 | 4.97 | 52 | 0 |
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| 2000 | 62.5 | 100 | 74.1 | 79 | 51 | 108 | 6.43 | 30 | 0 |
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| 1999 | 61.1 | 121 | 74.2 | 76 | 48.1 | 143 | 4.93 | 53 | 0 |
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| 1998 | 65.3 | 44 | 75.9 | 52 | 54.7 | 47 | 5.50 | 41 | 0 |
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| 1997 | 66.3 | 32 | 77.7 | 25 | 55 | 39 | 3.84 | 75 | 0 |
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| 1996 | 61.1 | 121 | 72.1 | 121 | 50.1 | 122 | 1.11 | 150 | 0 |
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| 1995 | 60.7 | 128 | 72.4 | 113 | 49 | 134 | 2.26 | 123 | 0 |
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| 1994 | 64.1 | 69 | 75.3 | 60 | 53 | 75 | 1.84 | 134 | 0 |
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| 1993 | 59.6 | 144 | 70.2 | 141 | 49 | 134 | 4.39 | 65 | 0 |
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| 1992 | 61.6 | 113 | 73.5 | 95 | 49.7 | 126 | 5.20 | 47 | 0 |
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| 1991 | 62.5 | 100 | 75.1 | 62 | 49.9 | 124 | 5.19 | 49 | 0 |
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| 1990 | 64.5 | 58 | 76 | 50 | 53 | 75 | 2.53 | 112 | 0 |
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| 1989 | 59.1 | 147 | 71.3 | 133 | 46.9 | 149 | 6.08 | 33 | 0 |
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| 1988 | 63.1 | 88 | 75.8 | 54 | 50.4 | 117 | 2.72 | 107 | 0 |
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| 1987 | 60.5 | 132 | 72.2 | 117 | 48.9 | 138 | 1.15 | 148 | 0 |
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| 1986 | 64.6 | 56 | 74.5 | 69 | 54.6 | 49 | 7.16 | 23 | 0 |
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| 1985 | 62.2 | 104 | 72.4 | 113 | 52.1 | 90 | 4.80 | 58 | 0 |
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| 1984 | 62.3 | 103 | 73.6 | 91 | 51 | 108 | 2.42 | 119 | 0 |
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| 1983 | 64.2 | 66 | 77 | 37 | 51.5 | 103 | 5.39 | 44 | 0 |
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| 1982 | 64.2 | 66 | 75.6 | 59 | 52.8 | 78 | 3.51 | 84 | 0 |
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| 1981 | 60.4 | 136 | 72.2 | 117 | 48.7 | 139 | 4.81 | 57 | 0 |
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| 1980 | 62.9 | 92 | 75.1 | 62 | 50.8 | 110 | 2.94 | 100 | 0 |
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| 1979 | 60.8 | 126 | 74.5 | 69 | 47 | 148 | 0.54 | 154 | 0 |
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| 1978 | 65.5 | 42 | 77.3 | 34 | 53.7 | 65 | 5.17 | 50 | 0 |
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| 1977 | 62 | 107 | 71.9 | 127 | 52.1 | 90 | 6.59 | 28 | 0 |
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| 1976 | 61.1 | 121 | 74.4 | 72 | 47.8 | 145 | 3.38 | 90 | 0 |
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| 1975 | 59.8 | 142 | 71.4 | 132 | 48.2 | 141 | 1.99 | 130 | 0 |
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| 1974 | 57.9 | 153 | 69.9 | 144 | 45.9 | 153 | 1.71 | 137 | 0 |
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| 1973 | 65.1 | 48 | 73.9 | 86 | 56.3 | 25 | 8.29 | 19 | 0 |
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| 1972 | 64.2 | 66 | 74.4 | 72 | 54.1 | 58 | 3.43 | 87 | 0 |
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| 1971 | 66.3 | 32 | 77.7 | 25 | 54.8 | 43 | 5.56 | 39 | 0 |
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| 1970 | 63.8 | 74 | 74.2 | 76 | 53.4 | 69 | 14.69 | 1 | 0 |
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| 1969 | 65.1 | 48 | 75.8 | 54 | 54.3 | 56 | 4.57 | 60 | 0 |
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| 1968 | 60.5 | 132 | 71.9 | 127 | 49.1 | 133 | 5.95 | 34 | 0 |
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| 1967 | 61.8 | 111 | 73.2 | 101 | 50.4 | 117 | 5.48 | 42 | 0 |
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| 1966 | 61.4 | 117 | 73.6 | 91 | 49.3 | 131 | 2.80 | 105 | 0 |
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| 1965 | 60.9 | 124 | 70 | 143 | 51.9 | 94 | 8.47 | 17 | 0 |
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| 1964 | 61.9 | 110 | 73.3 | 99 | 50.5 | 116 | 4.00 | 72 | 0 |
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| 1963 | 65.2 | 47 | 78 | 23 | 52.4 | 86 | 2.38 | 121 | 0 |
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| 1962 | 61.2 | 120 | 72.3 | 116 | 50.2 | 120 | 5.20 | 47 | 0 |
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| 1961 | 64.6 | 56 | 76.2 | 47 | 53.1 | 72 | 11.33 | 3 | 0 |
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| 1960 | 65.8 | 39 | 77.5 | 29 | 54.2 | 57 | 3.44 | 86 | 0 |
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| 1959 | 63.7 | 77 | 73.1 | 102 | 54.4 | 52 | 8.37 | 18 | 0 |
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| 1958 | 62.6 | 98 | 73.6 | 91 | 51.7 | 98 | 3.80 | 77 | 0 |
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| 1957 | 60 | 141 | 72.1 | 121 | 47.9 | 144 | 1.16 | 147 | 0 |
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| 1956 | 61.7 | 112 | 75.7 | 57 | 47.6 | 146 | 0.49 | 155 | 0 |
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| 1955 | 65 | 51 | 76.9 | 38 | 53.1 | 72 | 3.81 | 76 | 0 |
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| 1954 | 66.3 | 32 | 77.5 | 29 | 55 | 39 | 8.51 | 16 | 0 |
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| 1953 | 63.4 | 82 | 77.4 | 31 | 49.4 | 129 | 2.50 | 113 | 0 |
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| 1952 | 60.1 | 140 | 74.1 | 79 | 46 | 152 | 0.81 | 152 | 0 |
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| 1951 | 61.5 | 114 | 71.6 | 130 | 51.3 | 106 | 4.83 | 55 | 0 |
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| 1950 | 62.2 | 104 | 72.7 | 105 | 51.6 | 101 | 4.39 | 65 | 0 |
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| 1949 | 60.9 | 124 | 72.2 | 117 | 49.6 | 127 | 3.69 | 81 | 0 |
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| 1948 | 63.8 | 74 | 74.8 | 66 | 52.8 | 78 | 5.27 | 45 | 0 |
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| 1947 | 67.1 | 19 | 78.6 | 18 | 55.6 | 31 | 5.26 | 46 | 0 |
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| 1946 | 64.5 | 58 | 77.6 | 28 | 51.5 | 103 | 3.73 | 79 | 0 |
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| 1945 | 60.6 | 131 | 70.7 | 138 | 50.6 | 114 | 5.45 | 43 | 0 |
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| 1944 | 63.8 | 74 | 72.7 | 105 | 54.9 | 41 | 2.66 | 110 | 0 |
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| 1943 | 60.4 | 136 | 72.6 | 110 | 48.2 | 141 | 1.34 | 146 | 0 |
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| 1942 | 62.9 | 92 | 73.9 | 86 | 52 | 92 | 3.14 | 95 | 0 |
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| 1941 | 65.8 | 39 | 77.1 | 36 | 54.4 | 52 | 9.70 | 9 | 0 |
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| 1940 | 63 | 90 | 76.2 | 47 | 49.8 | 125 | 2.23 | 125 | 0 |
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| 1939 | 67.6 | 13 | 81.5 | 3 | 53.8 | 61 | 1.52 | 142 | 0 |
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| 1938 | 66.9 | 23 | 79.1 | 13 | 54.7 | 47 | 6.84 | 26 | 0 |
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| 1937 | 64.3 | 64 | 76.9 | 38 | 51.8 | 95 | 1.62 | 140 | 0 |
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| 1936 | 66.1 | 36 | 75.7 | 57 | 56.6 | 19 | 11.01 | 4 | 0 |
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| 1935 | 62.1 | 106 | 72 | 125 | 52.3 | 87 | 4.46 | 64 | 0 |
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| 1934 | 62 | 107 | 73.3 | 99 | 50.7 | 113 | 8.88 | 15 | 0 |
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| 1933 | 66 | 37 | 79.2 | 12 | 52.7 | 80 | 3.03 | 97 | 0 |
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| 1932 | 60.3 | 138 | 73.6 | 91 | 46.9 | 149 | 3.01 | 98 | 0 |
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| 1931 | 71.1 | 1 | 80.6 | 7 | 61.7 | 1 | 5.61 | 38 | 0 |
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| 1930 | 67.6 | 13 | 78.2 | 22 | 57 | 15 | 1.74 | 136 | 0 |
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| 1929 | 62 | 107 | 71.5 | 131 | 52.6 | 82 | 3.54 | 83 | 0 |
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| 1928 | 63.3 | 84 | 74 | 83 | 52.6 | 82 | 2.75 | 106 | 0 |
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| 1927 | 66.4 | 28 | 75.8 | 54 | 56.9 | 17 | 9.82 | 7 | 0 |
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| 1926 | 63.5 | 80 | 71.2 | 134 | 55.7 | 30 | 10.86 | 5 | 0 |
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| 1925 | 65.6 | 41 | 74.1 | 79 | 57.1 | 14 | 9.46 | 10 | 0 |
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| 1924 | 60.7 | 128 | 70.2 | 141 | 51.1 | 107 | 2.84 | 104 | 0 |
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| 1923 | 63.4 | 82 | 73.1 | 102 | 53.8 | 61 | 4.53 | 61 | 0 |
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| 1922 | 68.1 | 11 | 78.9 | 14 | 57.3 | 12 | 1.91 | 132 | 0 |
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| 1921 | 65.3 | 44 | 75 | 64 | 55.5 | 33 | 8.11 | 20 | 0 |
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| 1920 | 67 | 21 | 78 | 23 | 56 | 27 | 1.85 | 133 | 0 |
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| 1919 | 68.2 | 9 | 78.4 | 20 | 58.1 | 8 | 9.74 | 8 | 0 |
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| 1918 | 58.9 | 149 | 68.9 | 148 | 49 | 134 | 2.36 | 122 | 0 |
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| 1917 | 60.2 | 139 | 69.6 | 145 | 50.8 | 110 | 6.34 | 31 | 0 |
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| 1916 | 63.6 | 78 | 74.4 | 72 | 52.7 | 80 | 3.07 | 96 | 0 |
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| 1915 | 62.9 | 92 | 72.1 | 121 | 53.8 | 61 | 5.83 | 35 | 0 |
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| 1914 | 66.4 | 28 | 76.1 | 49 | 56.7 | 18 | 7.10 | 24 | 0 |
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| 1913 | 65.9 | 38 | 76 | 50 | 55.9 | 28 | 2.94 | 100 | 0 |
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| 1912 | 64.7 | 54 | 74.2 | 76 | 55.2 | 38 | 3.19 | 93 | 0 |
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| 1911 | 64.5 | 58 | 73.7 | 90 | 55.3 | 36 | 6.15 | 32 | 0 |
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| 1910 | 64.3 | 64 | 74.1 | 79 | 54.6 | 49 | 2.50 | 113 | 0 |
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| 1909 | 63.3 | 84 | 73.5 | 95 | 53.1 | 72 | 2.15 | 127 | 0 |
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| 1908 | 65.4 | 43 | 76.7 | 41 | 54.1 | 58 | 1.15 | 148 | 0 |
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| 1907 | 62.7 | 96 | 72 | 125 | 53.4 | 69 | 4.01 | 71 | 0 |
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| 1906 | 66.6 | 24 | 76.9 | 38 | 56.4 | 23 | 2.49 | 115 | 0 |
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| 1905 | 67.5 | 17 | 77.4 | 31 | 57.5 | 11 | 3.62 | 82 | 0 |
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| 1904 | 64.4 | 63 | 74 | 83 | 54.8 | 43 | 4.63 | 59 | 0 |
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| 1903 | 62.6 | 98 | 71.8 | 129 | 53.5 | 67 | 9.30 | 12 | 0 |
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| 1902 | 59.7 | 143 | 68.7 | 149 | 50.8 | 110 | 4.11 | 70 | 0 |
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| 1901 | 63 | 90 | 73.1 | 102 | 53 | 75 | 2.44 | 116 | 0 |
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| 1900 | 66.2 | 35 | 75.9 | 52 | 56.5 | 22 | 3.95 | 74 | 0 |
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| 1899 | 63.2 | 86 | 74 | 83 | 52.5 | 85 | 0.83 | 151 | 0 |
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| 1898 | 66.6 | 24 | 75.3 | 60 | 57.8 | 10 | 3.72 | 80 | 0 |
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| 1897 | 70.3 | 2 | 82.1 | 1 | 58.6 | 4 | 1.64 | 138 | 0 |
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| 1896 | 58.5 | 150 | 67.5 | 151 | 49.4 | 129 | 4.36 | 68 | 0 |
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| 1895 | 65.1 | 48 | 74.7 | 68 | 55.6 | 31 | 4.82 | 56 | 0 |
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| 1894 | 62.9 | 92 | 72.1 | 121 | 53.8 | 61 | 3.42 | 88 | 0 |
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| 1893 | 65.3 | 44 | 76.3 | 44 | 54.4 | 52 | 4.00 | 72 | 0 |
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| 1892 | 64.7 | 54 | 74.5 | 69 | 54.8 | 43 | 2.09 | 128 | 0 |
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| 1891 | 66.4 | 28 | 76.5 | 43 | 56.2 | 26 | 2.39 | 120 | 0 |
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| 1890 | 61.4 | 117 | 71.2 | 134 | 51.7 | 98 | 4.37 | 67 | 0 |
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| 1889 | 60.5 | 132 | 70.6 | 140 | 50.4 | 117 | 3.27 | 91 | 0 |
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| 1888 | 58.5 | 150 | 68.5 | 150 | 48.4 | 140 | 1.48 | 144 | 0 |
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| 1887 | 63.9 | 71 | 73.5 | 95 | 54.4 | 52 | 7.84 | 22 | 0 |
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| 1886 | 64.8 | 53 | 74.8 | 66 | 54.8 | 43 | 2.43 | 117 | 0 |
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| 1885 | 60.7 | 128 | 69.2 | 147 | 52.2 | 88 | 4.20 | 69 | 0 |
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| 1884 | 68.8 | 6 | 76.6 | 42 | 61.1 | 2 | 10.28 | 6 | 0 |
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| 1883 | 58.4 | 152 | 69.4 | 146 | 47.4 | 147 | 2.88 | 103 | 0 |
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| 1882 | 64.9 | 52 | 72.7 | 105 | 57 | 15 | 3.46 | 85 | 0 |
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| 1881 | 67.9 | 12 | 77.3 | 34 | 58.4 | 5 | 6.54 | 29 | 0 |
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| 1880 | 62.4 | 102 | 70.7 | 138 | 54.1 | 58 | 5.68 | 36 | 0 |
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| 1879 | 63.5 | 80 | 72.6 | 110 | 54.5 | 51 | 2.26 | 123 | 0 |
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| 1878 | 63.9 | 71 | 72.4 | 113 | 55.5 | 33 | 3.18 | 94 | 0 |
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| 1877 | 64.5 | 58 | 72.7 | 105 | 56.4 | 23 | 2.91 | 102 | 0 |
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| 1876 | 59 | 148 | 66.3 | 153 | 51.8 | 95 | 5.56 | 39 | 0 |
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| 1875 | 59.2 | 146 | 66.7 | 152 | 51.7 | 98 | 4.90 | 54 | 0 |
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| 1874 | 63.1 | 88 | 70.9 | 136 | 55.4 | 35 | 7.90 | 21 | 0 |
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| 1873 | | | | | | | 1.64 | 138 | 40 |
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| 1872 | | | | | | | 5.67 | 37 | 40 |
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