Every 1 September to 10 October in Concord, NH from 1868 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 | 59.8 | 37 | 71.6 | 47 | 48 | 38 | 4.57 | 61 | 0 |
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| 2025 | 61.3 | 20 | 76.7 | 2 | 45.9 | 84 | 3.42 | 102 | 0 |
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| 2024 | 60.1 | 34 | 72.9 | 26 | 47.2 | 52 | 2.39 | 130 | 0 |
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| 2023 | 63.3 | 4 | 74.8 | 8 | 51.8 | 8 | 4.71 | 57 | 0 |
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| 2022 | 58.1 | 82 | 69.7 | 97 | 46.5 | 69 | 4.35 | 65 | 0 |
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| 2021 | 61.6 | 14 | 72.5 | 35 | 50.8 | 10 | 5.12 | 45 | 0 |
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| 2020 | 59.5 | 42 | 73.3 | 18 | 45.6 | 89 | 1.06 | 154 | 0 |
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| 2019 | 57.7 | 90 | 70.8 | 65 | 44.7 | 112 | 1.84 | 145 | 0 |
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| 2018 | 62.9 | 5 | 72.5 | 35 | 53.2 | 3 | 6.44 | 26 | 0 |
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| 2017 | 64.3 | 2 | 76.4 | 3 | 52.1 | 6 | 3.92 | 84 | 0 |
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| 2016 | 62.1 | 9 | 75.2 | 6 | 49 | 28 | 3.92 | 84 | 0 |
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| 2015 | 61.5 | 17 | 74.7 | 9 | 48.3 | 33 | 6.10 | 31 | 0 |
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| 2014 | 58.4 | 68 | 71.2 | 54 | 45.6 | 89 | 1.26 | 151 | 0 |
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| 2013 | 58.7 | 60 | 72.3 | 38 | 45.1 | 100 | 5.78 | 36 | 0 |
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| 2012 | 58.3 | 73 | 69.9 | 90 | 46.8 | 59 | 4.84 | 52 | 0 |
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| 2011 | 61.7 | 12 | 73 | 24 | 50.5 | 11 | 9.40 | 7 | 0 |
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| 2010 | 60.7 | 25 | 72.6 | 34 | 48.7 | 30 | 3.80 | 90 | 0 |
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| 2009 | 56 | 129 | 69 | 105 | 43.1 | 141 | 2.39 | 130 | 0 |
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| 2008 | 58.4 | 68 | 70.8 | 65 | 46.1 | 77 | 8.95 | 8 | 0 |
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| 2007 | 61 | 23 | 74.7 | 9 | 47.3 | 50 | 4.81 | 54 | 0 |
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| 2006 | 58 | 86 | 70.6 | 72 | 45.3 | 97 | 3.39 | 104 | 0 |
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| 2005 | 62.4 | 7 | 75.8 | 4 | 49.1 | 26 | 8.61 | 11 | 0 |
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| 2004 | 59.3 | 46 | 72.3 | 38 | 46.2 | 74 | 6.16 | 30 | 0 |
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| 2003 | 58.3 | 73 | 70.9 | 62 | 45.7 | 88 | 5.18 | 42 | 0 |
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| 2002 | 61.3 | 20 | 74.3 | 11 | 48.3 | 33 | 3.87 | 87 | 0 |
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| 2001 | 58.5 | 63 | 73.4 | 17 | 43.7 | 127 | 3.55 | 98 | 0 |
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| 2000 | 56.3 | 121 | 69.3 | 100 | 43.4 | 134 | 4.59 | 59 | 0 |
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| 1999 | 59.5 | 42 | 71.1 | 57 | 48 | 38 | 10.37 | 5 | 0 |
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| 1998 | 58.2 | 78 | 71.6 | 47 | 44.8 | 107 | 4.13 | 73 | 0 |
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| 1997 | 58.3 | 73 | 70.3 | 79 | 46.4 | 73 | 2.23 | 138 | 0 |
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| 1996 | 57.2 | 105 | 68.3 | 119 | 46 | 80 | 4.59 | 59 | 0 |
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| 1995 | 56.2 | 124 | 69.8 | 93 | 42.6 | 147 | 4.54 | 62 | 0 |
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| 1994 | 56.1 | 127 | 68 | 128 | 44.2 | 117 | 3.62 | 95 | 0 |
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| 1993 | 56.5 | 119 | 68.2 | 123 | 44.9 | 105 | 4.71 | 57 | 0 |
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| 1992 | 56.8 | 113 | 70.5 | 74 | 43.1 | 141 | 3.36 | 106 | 0 |
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| 1991 | 57.3 | 102 | 70.5 | 74 | 44 | 121 | 7.59 | 16 | 0 |
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| 1990 | 58.9 | 53 | 71 | 59 | 46.8 | 59 | 2.57 | 123 | 0 |
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| 1989 | 57.5 | 96 | 70.1 | 85 | 45 | 102 | 4.82 | 53 | 0 |
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| 1988 | 55.7 | 133 | 68.5 | 114 | 43 | 143 | 1.98 | 143 | 0 |
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| 1987 | 56.3 | 121 | 68.2 | 123 | 44.4 | 115 | 5.98 | 34 | 0 |
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| 1986 | 55.7 | 133 | 67.5 | 134 | 43.9 | 124 | 3.09 | 111 | 0 |
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| 1985 | 59.1 | 50 | 71.2 | 54 | 46.9 | 56 | 6.34 | 27 | 0 |
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| 1984 | 55.1 | 146 | 68.2 | 123 | 42.1 | 150 | 4.25 | 68 | 0 |
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| 1983 | 60.7 | 25 | 75 | 7 | 46.5 | 69 | 2.58 | 122 | 0 |
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| 1982 | 58.2 | 78 | 69.9 | 90 | 46.6 | 66 | 2.98 | 113 | 0 |
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| 1981 | 55.7 | 133 | 64.9 | 157 | 46.5 | 69 | 5.77 | 37 | 0 |
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| 1980 | 56.5 | 119 | 69.8 | 93 | 43.2 | 136 | 2.93 | 116 | 0 |
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| 1979 | 58.1 | 82 | 70.4 | 77 | 45.8 | 85 | 6.06 | 33 | 0 |
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| 1978 | 54.1 | 156 | 69.1 | 103 | 39.2 | 159 | 1.73 | 147 | 0 |
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| 1977 | 56.3 | 121 | 68.2 | 123 | 44.4 | 115 | 8.89 | 9 | 0 |
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| 1976 | 56.9 | 111 | 70.6 | 72 | 43.2 | 136 | 3.73 | 93 | 0 |
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| 1975 | 54.2 | 154 | 67.3 | 138 | 41.2 | 154 | 5.15 | 43 | 0 |
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| 1974 | 55.4 | 140 | 68 | 128 | 42.9 | 144 | 4.95 | 50 | 0 |
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| 1973 | 57.5 | 96 | 70.7 | 69 | 44.2 | 117 | 2.26 | 135 | 0 |
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| 1972 | 55.5 | 138 | 68.3 | 119 | 42.7 | 145 | 3.97 | 82 | 0 |
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| 1971 | 58.9 | 53 | 71 | 59 | 46.8 | 59 | 4.01 | 81 | 0 |
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| 1970 | 59.5 | 42 | 71.3 | 53 | 47.8 | 41 | 3.95 | 83 | 0 |
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| 1969 | 58.1 | 82 | 70 | 88 | 46.2 | 74 | 5.37 | 41 | 0 |
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| 1968 | 58.6 | 61 | 71.2 | 54 | 46 | 80 | 3.75 | 92 | 0 |
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| 1967 | 57.5 | 96 | 71.5 | 51 | 43.5 | 132 | 2.26 | 135 | 0 |
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| 1966 | 55.8 | 130 | 69 | 105 | 42.5 | 149 | 6.66 | 25 | 0 |
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| 1965 | 55.5 | 138 | 68.3 | 119 | 42.7 | 145 | 3.88 | 86 | 0 |
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| 1964 | 54.7 | 150 | 68.4 | 117 | 40.9 | 156 | 0.61 | 158 | 0 |
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| 1963 | 55.7 | 133 | 70.5 | 74 | 40.9 | 156 | 2.13 | 140 | 0 |
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| 1962 | 56.7 | 116 | 68 | 128 | 45.4 | 94 | 8.68 | 10 | 0 |
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| 1961 | 64.7 | 1 | 77 | 1 | 52.3 | 5 | 4.09 | 76 | 0 |
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| 1960 | 56.7 | 116 | 69.8 | 93 | 43.6 | 128 | 7.79 | 15 | 0 |
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| 1959 | 61.7 | 12 | 73.2 | 19 | 50.2 | 16 | 4.74 | 56 | 0 |
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| 1958 | 57.7 | 90 | 70.7 | 69 | 44.6 | 114 | 4.05 | 78 | 0 |
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| 1957 | 59.3 | 46 | 72.9 | 26 | 45.8 | 85 | 4.17 | 70 | 0 |
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| 1956 | 53.3 | 159 | 65.5 | 152 | 41 | 155 | 6.75 | 23 | 0 |
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| 1955 | 57.4 | 100 | 70.7 | 69 | 44.2 | 117 | 3.59 | 97 | 0 |
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| 1954 | 56.9 | 111 | 67.6 | 133 | 46.1 | 77 | 5.81 | 35 | 0 |
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| 1953 | 58.5 | 63 | 72.8 | 29 | 44.2 | 117 | 2.31 | 132 | 0 |
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| 1952 | 58.8 | 56 | 72 | 45 | 45.6 | 89 | 4.04 | 79 | 0 |
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| 1951 | 57.6 | 93 | 69.2 | 102 | 46.1 | 77 | 4.08 | 77 | 0 |
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| 1950 | 55.8 | 130 | 68.4 | 117 | 43.2 | 136 | 2.15 | 139 | 0 |
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| 1949 | 57 | 108 | 69.1 | 103 | 44.8 | 107 | 5.02 | 47 | 0 |
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| 1948 | 57.9 | 88 | 73.8 | 12 | 42.1 | 150 | 1.29 | 150 | 0 |
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| 1947 | 58.3 | 73 | 72.8 | 29 | 43.9 | 124 | 2.50 | 127 | 0 |
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| 1946 | 58.4 | 68 | 73.2 | 19 | 43.6 | 128 | 4.30 | 67 | 0 |
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| 1945 | 58.4 | 68 | 71 | 59 | 45.8 | 85 | 2.96 | 115 | 0 |
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| 1944 | 59.1 | 50 | 70.8 | 65 | 47.4 | 49 | 7.41 | 18 | 0 |
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| 1943 | 56.2 | 124 | 69 | 105 | 43.5 | 132 | 1.76 | 146 | 0 |
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| 1942 | 58.2 | 78 | 71.6 | 47 | 44.8 | 107 | 5.77 | 37 | 0 |
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| 1941 | 58.8 | 56 | 73.7 | 13 | 44 | 121 | 2.03 | 141 | 0 |
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| 1940 | 58.2 | 78 | 70.2 | 82 | 46.2 | 74 | 4.12 | 74 | 0 |
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| 1939 | 60.3 | 31 | 72.5 | 35 | 48.2 | 36 | 2.44 | 129 | 0 |
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| 1938 | 56.2 | 124 | 67.4 | 137 | 45 | 102 | 10.68 | 4 | 0 |
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| 1937 | 57.5 | 96 | 68.9 | 108 | 46 | 80 | 2.86 | 117 | 0 |
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| 1936 | 58.8 | 56 | 70.1 | 85 | 47.6 | 46 | 3.23 | 109 | 0 |
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| 1935 | 54.7 | 150 | 66.1 | 146 | 43.4 | 134 | 5.03 | 46 | 0 |
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| 1934 | 60 | 36 | 69.8 | 93 | 50.3 | 14 | 7.33 | 19 | 0 |
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| 1933 | 59.2 | 49 | 68.7 | 112 | 49.7 | 21 | 7.31 | 20 | 0 |
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| 1932 | 60.6 | 28 | 72.1 | 44 | 49 | 28 | 8.25 | 13 | 0 |
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| 1931 | 61.6 | 14 | 73.5 | 15 | 49.7 | 21 | 2.70 | 120 | 0 |
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| 1930 | 59.7 | 40 | 72.7 | 33 | 46.8 | 59 | 1.00 | 156 | 0 |
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| 1929 | 57 | 108 | 68.5 | 114 | 45.4 | 94 | 3.37 | 105 | 0 |
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| 1928 | 55.3 | 142 | 66.6 | 141 | 44 | 121 | 2.46 | 128 | 0 |
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| 1927 | 59.8 | 37 | 71.8 | 46 | 47.9 | 40 | 3.46 | 100 | 0 |
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| 1926 | 57 | 108 | 68.8 | 110 | 45.3 | 97 | 2.76 | 119 | 0 |
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| 1925 | 55.6 | 137 | 66.3 | 145 | 45 | 102 | 3.62 | 95 | 0 |
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| 1924 | 57.1 | 107 | 68.8 | 110 | 45.5 | 92 | 6.09 | 32 | 0 |
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| 1923 | 58.3 | 73 | 69.7 | 97 | 46.9 | 56 | 2.51 | 125 | 0 |
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| 1922 | 60.3 | 31 | 72.2 | 43 | 48.5 | 31 | 4.14 | 72 | 0 |
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| 1921 | 60.8 | 24 | 73.2 | 19 | 48.3 | 33 | 2.97 | 114 | 0 |
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| 1920 | 60.5 | 29 | 71.5 | 51 | 49.5 | 23 | 8.30 | 12 | 0 |
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| 1919 | 58.1 | 82 | 68.5 | 114 | 47.8 | 41 | 3.53 | 99 | 0 |
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| 1918 | 54.6 | 152 | 66 | 148 | 43.2 | 136 | 7.59 | 16 | 0 |
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| 1917 | 54.2 | 154 | 66.5 | 142 | 42 | 152 | 1.17 | 153 | 0 |
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| 1916 | 58 | 86 | 70.8 | 65 | 45.3 | 97 | 4.37 | 64 | 0 |
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| 1915 | 59.7 | 40 | 70.3 | 79 | 49.1 | 26 | 2.86 | 117 | 0 |
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| 1914 | 58.5 | 63 | 72.3 | 38 | 44.8 | 107 | 0.21 | 159 | 0 |
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| 1913 | 58.8 | 56 | 69.3 | 100 | 48.4 | 32 | 5.00 | 49 | 0 |
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| 1912 | 57.3 | 102 | 68.6 | 113 | 46 | 80 | 3.40 | 103 | 0 |
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| 1911 | 55.2 | 144 | 66.8 | 140 | 43.6 | 128 | 4.12 | 74 | 0 |
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| 1910 | 58.5 | 63 | 70.2 | 82 | 46.8 | 59 | 3.43 | 101 | 0 |
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| 1909 | 58.5 | 63 | 70.4 | 77 | 46.5 | 69 | 4.15 | 71 | 0 |
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| 1908 | 58.9 | 53 | 72.8 | 29 | 45.1 | 100 | 0.63 | 157 | 0 |
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| 1907 | 56.8 | 113 | 65.9 | 150 | 47.7 | 44 | 10.69 | 3 | 0 |
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| 1906 | 59.5 | 42 | 72.3 | 38 | 46.6 | 66 | 2.51 | 125 | 0 |
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| 1905 | 57.6 | 93 | 68.3 | 119 | 47 | 54 | 6.29 | 28 | 0 |
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| 1904 | 55 | 149 | 66.1 | 146 | 43.9 | 124 | 5.02 | 47 | 0 |
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| 1903 | 59.3 | 46 | 70.9 | 62 | 47.7 | 44 | 1.97 | 144 | 0 |
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| 1902 | 57.6 | 93 | 67.5 | 134 | 47.6 | 46 | 6.25 | 29 | 0 |
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| 1901 | 57.8 | 89 | 70.2 | 82 | 45.4 | 94 | 3.67 | 94 | 0 |
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| 1900 | 60.7 | 25 | 72.3 | 38 | 49.2 | 25 | 4.02 | 80 | 0 |
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| 1899 | 53.9 | 157 | 65.2 | 153 | 42.6 | 147 | 4.42 | 63 | 0 |
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| 1898 | 60.5 | 29 | 72.9 | 26 | 48.1 | 37 | 7.82 | 14 | 0 |
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| 1897 | 55.1 | 146 | 69.5 | 99 | 40.7 | 158 | 1.25 | 152 | 0 |
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| 1896 | 55.8 | 130 | 65 | 155 | 46.7 | 64 | 5.60 | 40 | 0 |
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| 1895 | 57.3 | 102 | 70 | 88 | 44.7 | 112 | 2.57 | 123 | 0 |
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| 1894 | 59 | 52 | 70.1 | 85 | 47.8 | 41 | 3.83 | 89 | 0 |
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| 1893 | 53.4 | 158 | 63.1 | 158 | 43.6 | 128 | 1.99 | 142 | 0 |
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| 1892 | 56.8 | 113 | 66.5 | 142 | 47.1 | 53 | 2.28 | 134 | 0 |
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| 1891 | 61.3 | 20 | 71.1 | 57 | 51.6 | 9 | 3.04 | 112 | 0 |
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| 1890 | 58.6 | 61 | 67 | 139 | 50.3 | 14 | 6.74 | 24 | 0 |
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| 1889 | 58.4 | 68 | 66.4 | 144 | 50.5 | 11 | 5.61 | 39 | 0 |
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| 1888 | 54.3 | 153 | 61.8 | 159 | 46.9 | 56 | 13.12 | 1 | 0 |
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| 1887 | 56.1 | 127 | 65.2 | 153 | 47 | 54 | 1.49 | 149 | 0 |
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| 1886 | 57.4 | 100 | 68 | 128 | 46.7 | 64 | 4.25 | 68 | 0 |
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| 1885 | 55.2 | 144 | 65.7 | 151 | 44.8 | 107 | 2.29 | 133 | 0 |
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| 1884 | 60.2 | 33 | 69.9 | 90 | 50.4 | 13 | 1.60 | 148 | 0 |
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| 1883 | 55.4 | 140 | 67.5 | 134 | 43.2 | 136 | 3.26 | 108 | 0 |
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| 1882 | 62 | 10 | 71.6 | 47 | 52.4 | 4 | 7.22 | 22 | 0 |
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| 1881 | 63.7 | 3 | 73.6 | 14 | 53.8 | 2 | 3.87 | 87 | 0 |
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| 1880 | 61.4 | 19 | 72.8 | 29 | 50.1 | 18 | 3.12 | 110 | 0 |
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| 1879 | 61.6 | 14 | 73.2 | 19 | 50 | 20 | 3.29 | 107 | 0 |
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| 1878 | 61.5 | 17 | 73 | 24 | 50.1 | 18 | 1.02 | 155 | 0 |
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| 1877 | 62.5 | 6 | 73.1 | 23 | 51.9 | 7 | 5.15 | 43 | 0 |
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| 1876 | 56.7 | 116 | 66 | 148 | 47.5 | 48 | 4.35 | 65 | 0 |
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| 1875 | 57.2 | 105 | 67.8 | 132 | 46.6 | 66 | 4.89 | 51 | 0 |
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| 1874 | 59.8 | 37 | 70.3 | 79 | 49.4 | 24 | 3.77 | 91 | 0 |
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| 1873 | 57.7 | 90 | 68.1 | 127 | 47.3 | 50 | 7.26 | 21 | 0 |
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| 1872 | 62.4 | 7 | 70.9 | 62 | 54 | 1 | 4.81 | 54 | 0 |
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| 1871 | 55.1 | 146 | 68.9 | 108 | 41.3 | 153 | 2.70 | 120 | 0 |
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| 1870 | 60.1 | 34 | 75.3 | 5 | 44.9 | 105 | 2.26 | 135 | 0 |
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| 1869 | 61.9 | 11 | 73.5 | 15 | 50.2 | 16 | 12.66 | 2 | 0 |
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| 1868 | 55.3 | 142 | 65 | 155 | 45.5 | 92 | 9.97 | 6 | 0 |
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