Every August 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 | 71.9 | 11 | 84.1 | 10 | 59.7 | 15 | 1.69 | 132 | 0 |
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| 2025 | 68.9 | 51 | 83.5 | 15 | 54.2 | 110 | 1.18 | 148 | 0 |
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| 2024 | 68.4 | 60 | 79.3 | 87 | 57.6 | 34 | 5.36 | 20 | 0 |
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| 2023 | 67.6 | 78 | 78.8 | 98 | 56.4 | 66 | 4.49 | 37 | 0 |
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| 2022 | 73.5 | 1 | 86.4 | 2 | 60.6 | 10 | 3.54 | 65 | 0 |
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| 2021 | 72.6 | 6 | 83.2 | 21 | 62 | 4 | 3.36 | 74 | 0 |
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| 2020 | 70 | 30 | 83.5 | 15 | 56.5 | 60 | 1.50 | 137 | 0 |
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| 2019 | 68.4 | 60 | 81.7 | 41 | 55 | 94 | 5.08 | 26 | 0 |
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| 2018 | 72.8 | 3 | 83.3 | 18 | 62.4 | 3 | 10.67 | 1 | 0 |
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| 2017 | 67.3 | 87 | 80.6 | 61 | 53.9 | 116 | 3.09 | 79 | 0 |
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| 2016 | 72.8 | 3 | 86.9 | 1 | 58.8 | 24 | 1.89 | 125 | 0 |
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| 2015 | 70.8 | 24 | 84.2 | 9 | 57.5 | 35 | 5.56 | 17 | 2 |
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| 2014 | 66.3 | 116 | 78.8 | 98 | 53.8 | 121 | 3.82 | 53 | 0 |
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| 2013 | 66.9 | 96 | 80.1 | 71 | 53.6 | 129 | 2.05 | 116 | 0 |
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| 2012 | 70.9 | 22 | 84.3 | 8 | 57.5 | 35 | 6.34 | 11 | 0 |
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| 2011 | 69.1 | 48 | 81 | 53 | 57.2 | 42 | 7.52 | 4 | 0 |
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| 2010 | 69.6 | 35 | 82.9 | 27 | 56.2 | 71 | 2.75 | 92 | 0 |
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| 2009 | 69.2 | 45 | 81.3 | 46 | 57 | 48 | 4.18 | 43 | 0 |
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| 2008 | 66.4 | 110 | 78.1 | 111 | 54.6 | 103 | 4.76 | 31 | 0 |
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| 2007 | 68.5 | 58 | 82.1 | 37 | 55 | 94 | 1.71 | 131 | 0 |
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| 2006 | 66.6 | 103 | 78.9 | 94 | 54.3 | 107 | 3.45 | 69 | 0 |
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| 2005 | 70.9 | 22 | 83.5 | 15 | 58.4 | 26 | 3.18 | 77 | 0 |
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| 2004 | 69 | 50 | 80.5 | 64 | 57.5 | 35 | 4.62 | 34 | 0 |
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| 2003 | 71 | 19 | 81.8 | 40 | 60.2 | 13 | 6.78 | 9 | 0 |
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| 2002 | 71 | 19 | 85.5 | 4 | 56.5 | 60 | 1.96 | 122 | 0 |
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| 2001 | 72 | 8 | 84.7 | 5 | 59.4 | 18 | 0.67 | 155 | 0 |
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| 2000 | 67.4 | 84 | 78.8 | 98 | 55.9 | 80 | 1.89 | 125 | 0 |
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| 1999 | 67.1 | 90 | 78.9 | 94 | 55.4 | 90 | 3.45 | 69 | 0 |
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| 1998 | 69.6 | 35 | 82.3 | 35 | 56.9 | 50 | 1.41 | 141 | 0 |
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| 1997 | 68.1 | 65 | 80.1 | 71 | 56.1 | 76 | 3.68 | 57 | 0 |
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| 1996 | 69.3 | 43 | 81.9 | 39 | 56.6 | 57 | 0.06 | 159 | 0 |
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| 1995 | 69.3 | 43 | 83.7 | 12 | 55 | 94 | 2.42 | 105 | 0 |
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| 1994 | 66.4 | 110 | 79.2 | 88 | 53.5 | 132 | 2.85 | 85 | 0 |
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| 1993 | 70 | 30 | 83.1 | 24 | 56.8 | 52 | 1.97 | 120 | 0 |
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| 1992 | 67.1 | 90 | 78.5 | 104 | 55.6 | 87 | 2.13 | 112 | 0 |
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| 1991 | 69.9 | 33 | 82.6 | 29 | 57.1 | 45 | 7.26 | 5 | 0 |
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| 1990 | 69.8 | 34 | 81.3 | 46 | 58.3 | 27 | 7.19 | 6 | 0 |
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| 1989 | 67.7 | 76 | 79.5 | 83 | 55.9 | 80 | 3.55 | 63 | 0 |
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| 1988 | 70.5 | 25 | 82.4 | 33 | 58.5 | 25 | 5.44 | 18 | 0 |
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| 1987 | 65 | 137 | 78.4 | 106 | 51.7 | 148 | 2.84 | 87 | 0 |
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| 1986 | 66.1 | 120 | 77.9 | 115 | 54.3 | 107 | 3.72 | 56 | 0 |
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| 1985 | 66.6 | 103 | 79.2 | 88 | 54.1 | 114 | 2.51 | 104 | 0 |
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| 1984 | 69.2 | 45 | 81.4 | 45 | 57.1 | 45 | 0.97 | 152 | 0 |
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| 1983 | 69.2 | 45 | 82.5 | 30 | 56 | 77 | 2.07 | 115 | 0 |
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| 1982 | 65.4 | 132 | 76.9 | 130 | 53.9 | 116 | 2.54 | 103 | 0 |
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| 1981 | 66.6 | 103 | 78.9 | 94 | 54.3 | 107 | 3.25 | 75 | 0 |
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| 1980 | 68.4 | 60 | 80.3 | 67 | 56.5 | 60 | 3.99 | 48 | 0 |
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| 1979 | 67.5 | 81 | 78.2 | 109 | 56.8 | 52 | 4.20 | 42 | 0 |
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| 1978 | 69.6 | 35 | 81.5 | 43 | 57.7 | 33 | 2.87 | 84 | 0 |
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| 1977 | 67.9 | 71 | 81.2 | 48 | 54.7 | 102 | 3.51 | 67 | 0 |
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| 1976 | 65.3 | 133 | 77.9 | 115 | 52.7 | 142 | 2.66 | 96 | 0 |
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| 1975 | 66.5 | 109 | 79.4 | 85 | 53.6 | 129 | 3.94 | 51 | 0 |
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| 1974 | 66.9 | 96 | 82 | 38 | 51.9 | 147 | 2.20 | 110 | 0 |
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| 1973 | 72.3 | 7 | 84 | 11 | 60.5 | 11 | 6.88 | 8 | 0 |
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| 1972 | 64 | 151 | 77.3 | 126 | 50.8 | 155 | 2.12 | 113 | 0 |
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| 1971 | 67 | 93 | 79.9 | 76 | 54 | 115 | 2.79 | 90 | 0 |
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| 1970 | 68.7 | 55 | 83.6 | 14 | 53.8 | 121 | 3.06 | 80 | 0 |
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| 1969 | 68.9 | 51 | 80.8 | 57 | 57 | 48 | 2.84 | 87 | 0 |
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| 1968 | 64.5 | 144 | 76.9 | 130 | 52.2 | 145 | 3.60 | 60 | 0 |
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| 1967 | 67.2 | 88 | 79 | 91 | 55.4 | 90 | 1.97 | 120 | 0 |
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| 1966 | 69.6 | 35 | 83.3 | 18 | 55.9 | 80 | 4.05 | 46 | 0 |
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| 1965 | 66.6 | 103 | 79.7 | 78 | 53.5 | 132 | 3.12 | 78 | 0 |
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| 1964 | 62.6 | 157 | 76.2 | 140 | 49.1 | 157 | 2.74 | 93 | 0 |
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| 1963 | 65.5 | 130 | 78.6 | 102 | 52.5 | 144 | 2.74 | 93 | 0 |
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| 1962 | 67.8 | 74 | 79 | 91 | 56.6 | 57 | 2.59 | 99 | 0 |
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| 1961 | 68.5 | 58 | 80.8 | 57 | 56.2 | 71 | 3.55 | 63 | 0 |
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| 1960 | 68 | 67 | 81 | 53 | 55 | 94 | 2.57 | 102 | 0 |
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| 1959 | 70.2 | 28 | 82.5 | 30 | 57.9 | 30 | 5.90 | 15 | 0 |
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| 1958 | 68 | 67 | 81.6 | 42 | 54.4 | 106 | 2.61 | 98 | 0 |
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| 1957 | 64.1 | 150 | 78 | 113 | 50.2 | 156 | 1.37 | 144 | 0 |
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| 1956 | 66.3 | 116 | 79.5 | 83 | 53.1 | 136 | 2.08 | 114 | 0 |
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| 1955 | 71.1 | 16 | 83 | 26 | 59.3 | 19 | 3.95 | 50 | 0 |
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| 1954 | 64.3 | 149 | 77.2 | 127 | 51.5 | 151 | 4.81 | 29 | 0 |
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| 1953 | 66.4 | 110 | 80.6 | 61 | 52.1 | 146 | 4.49 | 37 | 0 |
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| 1952 | 67.9 | 71 | 81.1 | 50 | 54.6 | 103 | 2.34 | 107 | 0 |
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| 1951 | 66.4 | 110 | 78.5 | 104 | 54.2 | 110 | 2.39 | 106 | 0 |
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| 1950 | 67 | 93 | 80.2 | 69 | 53.9 | 116 | 5.37 | 19 | 0 |
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| 1949 | 69.5 | 40 | 83.2 | 21 | 55.8 | 83 | 2.04 | 118 | 0 |
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| 1948 | 69.1 | 48 | 82.4 | 33 | 55.8 | 83 | 1.73 | 130 | 0 |
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| 1947 | 70.3 | 26 | 83.3 | 18 | 57.3 | 39 | 1.18 | 148 | 0 |
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| 1946 | 64 | 151 | 75.3 | 149 | 52.8 | 140 | 5.28 | 23 | 0 |
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| 1945 | 66.7 | 100 | 79.7 | 78 | 53.6 | 129 | 1.40 | 142 | 0 |
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| 1944 | 70.3 | 26 | 84.7 | 5 | 55.8 | 83 | 0.95 | 153 | 0 |
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| 1943 | 65.5 | 130 | 76.8 | 132 | 54.2 | 110 | 3.19 | 76 | 0 |
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| 1942 | 66.4 | 110 | 78.9 | 94 | 53.9 | 116 | 0.95 | 153 | 0 |
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| 1941 | 63.5 | 155 | 78.7 | 101 | 48.4 | 158 | 1.87 | 127 | 0 |
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| 1940 | 67.2 | 88 | 79.6 | 82 | 54.9 | 99 | 1.13 | 151 | 0 |
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| 1939 | 72 | 8 | 83.2 | 21 | 60.8 | 9 | 5.04 | 27 | 0 |
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| 1938 | 71.5 | 12 | 82.7 | 28 | 60.3 | 12 | 2.58 | 101 | 0 |
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| 1937 | 72.8 | 3 | 83.7 | 12 | 61.9 | 5 | 4.62 | 34 | 0 |
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| 1936 | 67.1 | 90 | 78.6 | 102 | 55.5 | 88 | 3.75 | 54 | 0 |
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| 1935 | 68.8 | 54 | 80.5 | 64 | 57.1 | 45 | 1.77 | 129 | 0 |
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| 1934 | 64 | 151 | 76.4 | 137 | 51.7 | 148 | 1.39 | 143 | 0 |
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| 1933 | 67.4 | 84 | 78.3 | 108 | 56.5 | 60 | 6.01 | 13 | 0 |
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| 1932 | 69.4 | 41 | 82.3 | 35 | 56.4 | 66 | 2.05 | 116 | 0 |
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| 1931 | 67.5 | 81 | 77.8 | 117 | 57.3 | 39 | 4.03 | 47 | 0 |
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| 1930 | 65.7 | 123 | 76.8 | 132 | 54.6 | 103 | 2.82 | 89 | 0 |
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| 1929 | 64.7 | 142 | 76.7 | 135 | 52.6 | 143 | 3.00 | 81 | 0 |
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| 1928 | 69.6 | 35 | 80.2 | 69 | 59.1 | 22 | 5.12 | 25 | 0 |
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| 1927 | 63.5 | 155 | 74 | 154 | 53.1 | 136 | 3.54 | 65 | 0 |
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| 1926 | 67 | 93 | 77.1 | 129 | 56.8 | 52 | 1.15 | 150 | 0 |
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| 1925 | 66.6 | 103 | 79.7 | 78 | 53.4 | 135 | 1.48 | 139 | 0 |
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| 1924 | 68 | 67 | 80 | 74 | 56 | 77 | 2.67 | 95 | 0 |
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| 1923 | 65.6 | 125 | 78.4 | 106 | 52.8 | 140 | 2.19 | 111 | 0 |
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| 1922 | 67.7 | 76 | 78.2 | 109 | 57.2 | 42 | 2.63 | 97 | 0 |
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| 1921 | 65.6 | 125 | 78.1 | 111 | 53.1 | 136 | 1.60 | 134 | 0 |
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| 1920 | 71.4 | 13 | 81.5 | 43 | 61.2 | 6 | 4.77 | 30 | 0 |
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| 1919 | 64.7 | 142 | 75.5 | 147 | 53.9 | 116 | 1.60 | 134 | 0 |
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| 1918 | 68 | 67 | 79.9 | 76 | 56.2 | 71 | 3.97 | 49 | 0 |
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| 1917 | 70 | 30 | 80.6 | 61 | 59.5 | 17 | 4.72 | 33 | 0 |
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| 1916 | 68.7 | 55 | 80.7 | 60 | 56.7 | 56 | 3.45 | 69 | 0 |
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| 1915 | 65.7 | 123 | 75.3 | 149 | 56.2 | 71 | 6.26 | 12 | 0 |
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| 1914 | 66.7 | 100 | 76.8 | 132 | 56.6 | 57 | 5.91 | 14 | 0 |
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| 1913 | 67.8 | 74 | 80.8 | 57 | 54.8 | 100 | 2.30 | 108 | 0 |
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| 1912 | 64.5 | 144 | 74.8 | 152 | 54.2 | 110 | 3.39 | 72 | 0 |
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| 1911 | 66.4 | 110 | 77.7 | 119 | 55 | 94 | 4.24 | 41 | 0 |
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| 1910 | 65.6 | 125 | 77.6 | 120 | 53.7 | 126 | 1.49 | 138 | 0 |
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| 1909 | 65.6 | 125 | 77.8 | 117 | 53.5 | 132 | 2.85 | 85 | 0 |
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| 1908 | 65.2 | 134 | 75.7 | 146 | 54.8 | 100 | 5.58 | 16 | 0 |
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| 1907 | 65 | 137 | 76.3 | 139 | 53.7 | 126 | 1.64 | 133 | 0 |
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| 1906 | 70.1 | 29 | 81.2 | 48 | 59 | 23 | 2.24 | 109 | 0 |
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| 1905 | 65.1 | 136 | 76.4 | 137 | 53.8 | 121 | 2.59 | 99 | 0 |
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| 1904 | 65.2 | 134 | 76.5 | 136 | 53.8 | 121 | 4.45 | 39 | 0 |
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| 1903 | 61.1 | 158 | 71 | 158 | 51.2 | 152 | 3.38 | 73 | 0 |
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| 1902 | 63.8 | 154 | 76 | 143 | 51.6 | 150 | 5.20 | 24 | 0 |
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| 1901 | 68.9 | 51 | 80.3 | 67 | 57.5 | 35 | 6.68 | 10 | 0 |
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| 1900 | 68.4 | 60 | 81 | 53 | 55.7 | 86 | 2.76 | 91 | 0 |
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| 1899 | 66.9 | 96 | 80 | 74 | 53.8 | 121 | 1.93 | 124 | 0 |
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| 1898 | 69.4 | 41 | 81.1 | 50 | 57.8 | 31 | 4.74 | 32 | 0 |
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| 1897 | 64.4 | 148 | 77.6 | 120 | 51.2 | 152 | 3.58 | 61 | 0 |
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| 1896 | 67.6 | 78 | 79.7 | 78 | 55.5 | 88 | 3.75 | 54 | 0 |
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| 1895 | 66.1 | 120 | 79 | 91 | 53.1 | 136 | 3.85 | 52 | 0 |
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| 1894 | 64.5 | 144 | 78 | 113 | 50.9 | 154 | 0.65 | 156 | 0 |
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| 1893 | 65 | 137 | 73.6 | 155 | 56.4 | 66 | 4.11 | 44 | 0 |
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| 1892 | 67.5 | 81 | 75.2 | 151 | 59.8 | 14 | 9.00 | 2 | 0 |
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| 1891 | 67.6 | 78 | 76.1 | 141 | 59.2 | 20 | 2.95 | 82 | 0 |
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| 1890 | 66.1 | 120 | 75.5 | 147 | 56.8 | 52 | 3.56 | 62 | 0 |
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| 1889 | 64.8 | 140 | 74.6 | 153 | 55.1 | 92 | 1.57 | 136 | 0 |
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| 1888 | 66.9 | 96 | 76 | 143 | 57.8 | 31 | 3.67 | 58 | 0 |
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| 1887 | 64.8 | 140 | 73 | 156 | 56.3 | 70 | 7.68 | 3 | 2 |
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| 1886 | 66.3 | 116 | 76 | 143 | 56.5 | 60 | 3.49 | 68 | 0 |
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| 1885 | 64.5 | 144 | 72.5 | 157 | 56.5 | 60 | 5.32 | 21 | 0 |
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| 1884 | 68.4 | 60 | 77.6 | 120 | 59.2 | 20 | 3.62 | 59 | 0 |
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| 1883 | 65.6 | 125 | 77.5 | 123 | 53.7 | 126 | 1.37 | 144 | 0 |
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| 1882 | 71.3 | 15 | 84.6 | 7 | 58 | 29 | 0.35 | 158 | 0 |
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| 1881 | 71.1 | 16 | 81.1 | 50 | 61.2 | 6 | 1.25 | 146 | 0 |
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| 1880 | 68.1 | 65 | 80.1 | 71 | 56.2 | 71 | 1.47 | 140 | 0 |
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| 1879 | 67.4 | 84 | 77.5 | 123 | 57.3 | 39 | 4.39 | 40 | 0 |
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| 1878 | 68.7 | 55 | 79.1 | 90 | 58.3 | 27 | 4.06 | 45 | 0 |
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| 1877 | 72 | 8 | 80.5 | 64 | 63.5 | 2 | 4.60 | 36 | 0 |
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| 1876 | 71.1 | 16 | 82.5 | 30 | 59.7 | 15 | 0.42 | 157 | 0 |
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| 1875 | 71 | 19 | 81 | 53 | 61 | 8 | 5.31 | 22 | 0 |
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| 1874 | 66.3 | 116 | 77.5 | 123 | 55.1 | 92 | 1.95 | 123 | 0 |
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| 1873 | 66.7 | 100 | 76.1 | 141 | 57.2 | 42 | 1.85 | 128 | 0 |
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| 1872 | 73.5 | 1 | 83.1 | 24 | 64 | 1 | 7.00 | 7 | 0 |
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| 1871 | 67.9 | 71 | 79.4 | 85 | 56.4 | 66 | 5.02 | 28 | 0 |
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| 1870 | 71.4 | 13 | 85.9 | 3 | 56.9 | 50 | 1.23 | 147 | 0 |
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| 1869 | 66.6 | 103 | 77.2 | 127 | 56 | 77 | 2.01 | 119 | 0 |
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| 1868 | | | | | | | 2.89 | 83 | 31 |
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