Every April in Trenton, NJ from 1866 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 | 54.4 | 25 | 66 | 11 | 42.7 | 51 | 1.74 | 135 | 0 |
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| 2025 | 53.5 | 36 | 63.9 | 37 | 43 | 44 | 2.24 | 119 | 0 |
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| 2024 | 52.9 | 43 | 62.9 | 51 | 42.9 | 48 | 4.25 | 47 | 0 |
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| 2023 | 55.2 | 16 | 66 | 11 | 44.4 | 20 | 4.86 | 36 | 0 |
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| 2022 | 51 | 80 | 60.5 | 93 | 41.4 | 74 | 5.60 | 21 | 0 |
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| 2021 | 52.6 | 50 | 63.4 | 45 | 41.9 | 68 | 2.41 | 111 | 0 |
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| 2020 | 48.8 | 115 | 58.2 | 126 | 39.3 | 112 | 4.65 | 39 | 0 |
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| 2019 | 55.6 | 9 | 65.9 | 14 | 45.2 | 13 | 4.05 | 51 | 0 |
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| 2018 | 48.9 | 113 | 58.9 | 119 | 38.9 | 121 | 3.57 | 61 | 0 |
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| 2017 | 57 | 4 | 67.1 | 5 | 46.9 | 2 | 3.16 | 72 | 0 |
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| 2016 | 51.6 | 72 | 62.6 | 54 | 40.5 | 94 | 1.67 | 138 | 0 |
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| 2015 | 53.2 | 41 | 63.8 | 38 | 42.7 | 51 | 2.50 | 104 | 0 |
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| 2014 | 51.3 | 75 | 62.3 | 64 | 40.3 | 97 | 6.20 | 12 | 0 |
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| 2013 | 52.3 | 56 | 62.4 | 61 | 42.2 | 58 | 2.26 | 117 | 0 |
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| 2012 | 55.4 | 12 | 66.6 | 8 | 44.2 | 23 | 2.61 | 97 | 0 |
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| 2011 | 56.2 | 6 | 66.2 | 9 | 46.2 | 4 | 6.12 | 13 | 0 |
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| 2010 | 57.1 | 3 | 68.7 | 3 | 45.5 | 10 | 2.50 | 104 | 0 |
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| 2009 | 53.9 | 31 | 64.2 | 33 | 43.7 | 30 | 3.07 | 73 | 0 |
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| 2008 | 54.9 | 18 | 65.4 | 20 | 44.5 | 18 | 2.19 | 121 | 0 |
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| 2007 | 49.5 | 102 | 58.7 | 121 | 40.3 | 97 | 9.95 | 2 | 0 |
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| 2006 | 54.4 | 25 | 65.9 | 14 | 42.9 | 48 | 3.68 | 60 | 0 |
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| 2005 | 53.7 | 35 | 65.3 | 22 | 42.2 | 58 | 4.95 | 33 | 0 |
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| 2004 | 52.5 | 52 | 62.5 | 57 | 42.4 | 55 | 6.01 | 14 | 0 |
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| 2003 | 48.2 | 122 | 58 | 129 | 38.4 | 125 | 2.05 | 128 | 0 |
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| 2002 | 54.6 | 22 | 65.2 | 24 | 44 | 25 | 2.84 | 82 | 0 |
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| 2001 | 51.8 | 66 | 62.2 | 65 | 41.4 | 74 | 1.48 | 145 | 0 |
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| 2000 | 50.3 | 90 | 59.6 | 109 | 41 | 80 | 2.60 | 98 | 0 |
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| 1999 | 50.9 | 82 | 61.8 | 68 | 40 | 105 | 2.55 | 101 | 0 |
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| 1998 | 52.4 | 53 | 62.6 | 54 | 42.2 | 58 | 5.88 | 17 | 0 |
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| 1997 | 49.4 | 104 | 60.6 | 88 | 38.1 | 128 | 2.98 | 76 | 0 |
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| 1996 | 52.2 | 57 | 61.8 | 68 | 42.6 | 53 | 5.31 | 24 | 0 |
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| 1995 | 50.5 | 86 | 61.3 | 78 | 39.6 | 110 | 2.31 | 114 | 0 |
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| 1994 | 55.5 | 11 | 68.6 | 4 | 42.4 | 55 | 2.06 | 127 | 0 |
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| 1993 | 51.8 | 66 | 62.8 | 53 | 40.7 | 86 | 5.28 | 26 | 0 |
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| 1992 | 50 | 95 | 61 | 83 | 39 | 120 | 0.92 | 151 | 0 |
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| 1991 | 53.9 | 31 | 64.7 | 29 | 43.1 | 42 | 3.55 | 63 | 0 |
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| 1990 | 51.8 | 66 | 62.6 | 54 | 41 | 80 | 3.21 | 70 | 0 |
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| 1989 | 49.7 | 99 | 60.6 | 88 | 38.7 | 123 | 2.43 | 109 | 0 |
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| 1988 | 48.8 | 115 | 58.5 | 123 | 39.2 | 118 | 2.46 | 107 | 0 |
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| 1987 | 50.4 | 88 | 60 | 105 | 40.8 | 84 | 6.56 | 9 | 0 |
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| 1986 | 52.1 | 60 | 64.9 | 26 | 39.3 | 112 | 7.10 | 5 | 0 |
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| 1985 | 52.4 | 53 | 64.5 | 31 | 40.3 | 97 | 0.71 | 153 | 0 |
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| 1984 | 49.3 | 106 | 59.3 | 114 | 39.3 | 112 | 9.62 | 3 | 0 |
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| 1983 | 51.2 | 77 | 61.3 | 78 | 41 | 80 | 9.27 | 4 | 0 |
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| 1982 | 49.5 | 102 | 61.6 | 73 | 37.4 | 132 | 6.93 | 6 | 0 |
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| 1981 | 55.3 | 13 | 64.3 | 32 | 46.3 | 3 | 3.91 | 55 | 0 |
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| 1980 | 54.1 | 28 | 62.9 | 51 | 45.3 | 12 | 4.14 | 49 | 0 |
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| 1979 | 51.1 | 78 | 59.1 | 116 | 43.1 | 42 | 2.78 | 87 | 0 |
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| 1978 | 50.8 | 84 | 59.9 | 107 | 41.6 | 72 | 1.51 | 143 | 0 |
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| 1977 | 54.1 | 28 | 64.8 | 27 | 43.5 | 35 | 4.16 | 48 | 0 |
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| 1976 | 55.2 | 16 | 65.8 | 16 | 44.6 | 17 | 1.24 | 148 | 0 |
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| 1975 | 47.5 | 129 | 56.6 | 145 | 38.3 | 126 | 3.36 | 66 | 0 |
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| 1974 | 55.3 | 13 | 65.7 | 18 | 44.9 | 15 | 2.71 | 93 | 0 |
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| 1973 | 52.9 | 43 | 61.2 | 80 | 44.7 | 16 | 6.61 | 8 | 0 |
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| 1972 | 49.7 | 99 | 58.8 | 120 | 40.6 | 89 | 2.79 | 85 | 0 |
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| 1971 | 50.3 | 90 | 60.1 | 103 | 40.6 | 89 | 2.59 | 99 | 0 |
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| 1970 | 51.1 | 78 | 60.4 | 96 | 41.8 | 69 | 4.35 | 43 | 0 |
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| 1969 | 55.3 | 13 | 64.7 | 29 | 45.8 | 8 | 2.23 | 120 | 0 |
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| 1968 | 54.8 | 20 | 65.4 | 20 | 44.2 | 23 | 1.49 | 144 | 0 |
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| 1967 | 51.4 | 73 | 61.5 | 75 | 41.3 | 78 | 2.47 | 106 | 0 |
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| 1966 | 48.2 | 122 | 56.3 | 147 | 40 | 105 | 2.79 | 85 | 0 |
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| 1965 | 49.4 | 104 | 58.1 | 128 | 40.6 | 89 | 2.87 | 81 | 0 |
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| 1964 | 49.3 | 106 | 58 | 129 | 40.5 | 94 | 5.04 | 31 | 0 |
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| 1963 | 52.7 | 49 | 63 | 50 | 42.3 | 57 | 0.83 | 152 | 0 |
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| 1962 | 52.9 | 43 | 62.5 | 57 | 43.3 | 39 | 3.77 | 58 | 0 |
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| 1961 | 48.5 | 119 | 57 | 142 | 40.1 | 102 | 4.71 | 37 | 0 |
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| 1960 | 55.6 | 9 | 67 | 6 | 44.3 | 22 | 2.45 | 108 | 0 |
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| 1959 | 53.9 | 31 | 64 | 36 | 43.8 | 29 | 2.72 | 91 | 0 |
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| 1958 | 53.9 | 31 | 63.4 | 45 | 44.5 | 18 | 5.77 | 19 | 0 |
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| 1957 | 53.4 | 39 | 63.1 | 48 | 43.7 | 30 | 4.93 | 35 | 0 |
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| 1956 | 49.2 | 109 | 58.2 | 126 | 40.1 | 102 | 2.72 | 91 | 0 |
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| 1955 | 54.1 | 28 | 63.7 | 41 | 44.4 | 20 | 2.09 | 125 | 0 |
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| 1954 | 54.6 | 22 | 65.5 | 19 | 43.7 | 30 | 3.37 | 65 | 0 |
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| 1953 | 51.9 | 63 | 60 | 105 | 43.9 | 27 | 5.67 | 20 | 0 |
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| 1952 | 54.4 | 25 | 63.1 | 48 | 45.8 | 8 | 5.93 | 16 | 0 |
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| 1951 | 52.2 | 57 | 61.8 | 68 | 42.5 | 54 | 2.40 | 112 | 0 |
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| 1950 | 48.2 | 122 | 57.4 | 141 | 39.1 | 119 | 1.79 | 134 | 0 |
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| 1949 | 52.9 | 43 | 62.5 | 57 | 43.4 | 36 | 2.92 | 77 | 0 |
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| 1948 | 51.3 | 75 | 60.4 | 96 | 42.2 | 58 | 2.68 | 94 | 0 |
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| 1947 | 51.9 | 63 | 61.6 | 73 | 42.1 | 64 | 4.63 | 40 | 0 |
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| 1946 | 51 | 80 | 61.2 | 80 | 40.7 | 86 | 1.16 | 149 | 0 |
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| 1945 | 56 | 7 | 66.2 | 9 | 45.9 | 6 | 2.42 | 110 | 0 |
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| 1944 | 48.9 | 113 | 57.5 | 138 | 40.3 | 97 | 4.94 | 34 | 0 |
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| 1943 | 46 | 132 | 55.8 | 149 | 36.3 | 133 | 2.10 | 124 | 0 |
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| 1942 | 54.5 | 24 | 66 | 11 | 43 | 44 | 1.27 | 147 | 0 |
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| 1941 | 57.3 | 1 | 69.2 | 2 | 45.4 | 11 | 2.03 | 129 | 0 |
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| 1940 | 46.5 | 131 | 54.9 | 152 | 38.1 | 128 | 5.24 | 28 | 0 |
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| 1939 | 49 | 112 | 57.5 | 138 | 40.5 | 94 | 5.31 | 24 | 0 |
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| 1938 | 53.5 | 36 | 63.8 | 38 | 43.2 | 41 | 2.31 | 114 | 0 |
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| 1937 | 50 | 95 | 58.4 | 124 | 41.6 | 72 | 4.31 | 45 | 0 |
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| 1936 | 48.6 | 118 | 57.9 | 131 | 39.3 | 112 | 2.11 | 123 | 0 |
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| 1935 | 49.6 | 101 | 57.8 | 132 | 41.4 | 74 | 1.46 | 146 | 0 |
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| 1934 | 50.2 | 92 | 60.3 | 98 | 40.1 | 102 | 2.73 | 90 | 0 |
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| 1933 | 50.9 | 82 | 60.2 | 100 | 41.7 | 70 | 4.40 | 42 | 0 |
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| 1932 | 49.2 | 109 | 59.1 | 116 | 39.3 | 112 | 2.25 | 118 | 0 |
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| 1931 | 50.7 | 85 | 60.6 | 88 | 40.9 | 83 | 2.07 | 126 | 0 |
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| 1930 | 48.4 | 121 | 57.6 | 135 | 39.3 | 112 | 1.74 | 135 | 0 |
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| 1929 | 52.2 | 57 | 61.5 | 75 | 42.8 | 50 | 5.34 | 23 | 0 |
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| 1928 | 48.2 | 122 | 57.8 | 132 | 38.7 | 123 | 4.67 | 38 | 0 |
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| 1927 | 48.1 | 126 | 57.8 | 132 | 38.3 | 126 | 2.91 | 79 | 0 |
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| 1926 | 47.2 | 130 | 56.6 | 145 | 37.7 | 130 | 2.01 | 130 | 0 |
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| 1925 | 51.8 | 66 | 62.4 | 61 | 41.2 | 79 | 2.35 | 113 | 0 |
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| 1924 | 49.3 | 106 | 58.7 | 121 | 40 | 105 | 5.99 | 15 | 0 |
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| 1923 | 50.2 | 92 | 60.6 | 88 | 39.8 | 109 | 3.34 | 67 | 0 |
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| 1922 | 51.7 | 70 | 61.1 | 82 | 42.2 | 58 | 1.69 | 137 | 0 |
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| 1921 | 56.6 | 5 | 66.9 | 7 | 46.2 | 4 | 1.86 | 133 | 0 |
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| 1920 | 47.9 | 127 | 56.9 | 144 | 38.8 | 122 | 4.34 | 44 | 0 |
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| 1919 | 49.9 | 97 | 59.5 | 110 | 40.3 | 97 | 2.91 | 79 | 0 |
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| 1918 | 50.1 | 94 | 59.5 | 110 | 40.7 | 86 | 3.25 | 69 | 0 |
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| 1917 | 49.1 | 111 | 58.3 | 125 | 39.9 | 108 | 2.29 | 116 | 0 |
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| 1916 | 48.8 | 115 | 57 | 142 | 40.6 | 89 | 2.67 | 95 | 0 |
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| 1915 | 54.9 | 18 | 65.8 | 16 | 44 | 25 | 3.04 | 74 | 0 |
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| 1914 | 48.5 | 119 | 57.6 | 135 | 39.4 | 111 | 2.57 | 100 | 0 |
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| 1913 | 52.6 | 50 | 61.4 | 77 | 43.7 | 30 | 5.27 | 27 | 0 |
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| 1912 | 51.9 | 63 | 63.6 | 42 | 40.8 | 84 | 3.77 | 58 | 2 |
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| 1911 | | | 60.2 | 100 | | | 4.02 | 53 | 5 |
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| 1910 | 57.2 | 2 | 69.8 | 1 | 45 | 14 | 5.08 | 30 | 1 |
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| 1909 | 52 | 62 | 61.8 | 68 | 42.1 | 64 | 6.66 | 7 | 0 |
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| 1908 | 53 | 42 | 63.8 | 38 | 42.2 | 58 | 3.34 | 67 | 0 |
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| 1907 | 47.7 | 128 | 57.6 | 135 | 37.7 | 130 | 3.01 | 75 | 1 |
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| 1906 | 53.4 | 39 | 64.8 | 27 | 42.1 | 64 | 3.84 | 56 | 0 |
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| 1905 | 52.8 | 48 | 62.2 | 65 | 43.4 | 36 | 2.80 | 84 | 0 |
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| 1904 | 51.4 | 73 | 60.8 | 85 | 42.1 | 64 | | | 2 |
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| 1903 | 54.7 | 21 | 63.5 | 43 | 45.9 | 6 | 6.49 | 11 | 0 |
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| 1902 | 52.1 | 60 | 60.5 | 93 | 43.7 | 30 | 3.20 | 71 | 0 |
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| 1901 | 49.9 | 97 | 56.3 | 147 | 43.4 | 36 | 5.21 | 29 | 0 |
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| 1900 | 51.7 | 70 | 60.3 | 98 | 43 | 44 | 1.59 | 141 | 0 |
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| 1899 | | | 63.3 | 47 | 40.6 | 89 | 1.67 | 138 | 4 |
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| 1898 | 50.4 | 88 | 59.4 | 113 | 41.4 | 74 | 3.57 | 61 | 0 |
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| 1897 | 53.5 | 36 | 64.1 | 34 | 43 | 44 | 3.51 | 64 | 2 |
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| 1896 | 55.9 | 8 | 65.2 | 24 | 47.4 | 1 | 1.62 | 140 | 2 |
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| 1895 | 52.4 | 53 | 60.9 | 84 | 43.9 | 27 | 5.56 | 22 | 0 |
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| 1894 | 52.9 | 43 | 62.5 | 57 | 43.3 | 39 | 2.92 | 77 | 0 |
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| 1893 | 50.5 | 86 | 59.2 | 115 | 41.7 | 70 | 6.53 | 10 | 0 |
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| 1892 | | | 60.8 | 85 | | | 2.77 | 88 | 30 |
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| 1891 | | | 63.5 | 43 | | | 1.99 | 131 | 30 |
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| 1890 | | | 62.2 | 65 | | | 2.83 | 83 | 30 |
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| 1889 | | | 61.8 | 68 | | | 5.00 | 32 | 30 |
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| 1888 | | | 59.7 | 108 | | | 2.64 | 96 | 30 |
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| 1880 | | | 62.4 | 61 | | | 4.05 | 51 | 30 |
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| 1879 | | | 57.5 | 138 | | | 5.80 | 18 | 30 |
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| 1878 | | | 65.3 | 22 | | | 1.55 | 142 | 30 |
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| 1877 | | | 59.1 | 116 | | | 2.75 | 89 | 30 |
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| 1876 | | | 60.2 | 100 | | | 2.51 | 103 | 30 |
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| 1875 | | | 55.4 | 151 | | | 4.13 | 50 | 30 |
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| 1874 | | | 50.3 | 154 | | | 10.32 | 1 | 30 |
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| 1873 | | | 55.7 | 150 | | | 4.29 | 46 | 30 |
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| 1872 | | | 60.7 | 87 | | | 2.55 | 101 | 30 |
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| 1871 | | | 64.1 | 34 | | | 2.14 | 122 | 30 |
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| 1870 | | | 59.5 | 110 | | | 3.84 | 56 | 30 |
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| 1869 | | | 60.5 | 93 | | | 1.98 | 132 | 30 |
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| 1868 | | | 54.5 | 153 | | | 4.53 | 41 | 30 |
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| 1867 | | | 60.6 | 88 | | | 0.93 | 150 | 30 |
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| 1866 | | | 60.1 | 103 | | | 4.02 | 53 | 30 |
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