Every April in Pittsburgh, PA from 1871 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 | 58.2 | 1 | 69.5 | 1 | 46.9 | 3 | 3.46 | 59 | 0 |
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| 2025 | 54.5 | 16 | 65.5 | 19 | 43.5 | 20 | 4.42 | 24 | 0 |
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| 2024 | 56.9 | 6 | 66.9 | 8 | 46.8 | 4 | 7.93 | 2 | 0 |
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| 2023 | 52.8 | 35 | 64.4 | 27 | 41.2 | 59 | 2.18 | 117 | 0 |
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| 2022 | 48.9 | 114 | 58.4 | 117 | 39.3 | 106 | 3.23 | 70 | 0 |
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| 2021 | 51.3 | 66 | 62.2 | 58 | 40.4 | 81 | 2.67 | 93 | 0 |
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| 2020 | 47.6 | 128 | 57.8 | 124 | 37.5 | 133 | 4.59 | 19 | 0 |
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| 2019 | 54 | 23 | 64.3 | 29 | 43.6 | 19 | 3.44 | 60 | 0 |
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| 2018 | 46.3 | 141 | 56.6 | 133 | 36.1 | 141 | 4.43 | 23 | 0 |
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| 2017 | 57.3 | 2 | 68 | 3 | 46.5 | 6 | 3.54 | 57 | 0 |
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| 2016 | 51.3 | 66 | 63 | 44 | 39.6 | 98 | 2.25 | 113 | 0 |
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| 2015 | 52.9 | 34 | 63.4 | 37 | 42.3 | 39 | 3.95 | 41 | 0 |
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| 2014 | 52.2 | 46 | 63.7 | 32 | 40.6 | 74 | 4.47 | 22 | 0 |
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| 2013 | 52.4 | 41 | 63.5 | 35 | 41.3 | 57 | 3.27 | 65 | 0 |
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| 2012 | 50.4 | 88 | 62 | 63 | 38.8 | 115 | 1.31 | 146 | 0 |
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| 2011 | 53.3 | 32 | 63.4 | 37 | 43.2 | 23 | 5.13 | 12 | 0 |
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| 2010 | 55.3 | 12 | 67.7 | 5 | 43 | 29 | 1.76 | 131 | 0 |
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| 2009 | 52.1 | 48 | 62.8 | 47 | 41.4 | 54 | 2.36 | 108 | 0 |
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| 2008 | 53.9 | 25 | 65.3 | 22 | 42.5 | 35 | 2.02 | 123 | 0 |
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| 2007 | 47.5 | 129 | 56.4 | 136 | 38.5 | 119 | 4.31 | 31 | 0 |
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| 2006 | 53.7 | 27 | 65.2 | 23 | 42.3 | 39 | 3.00 | 84 | 0 |
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| 2005 | 52.3 | 43 | 63.6 | 33 | 40.9 | 68 | 3.72 | 47 | 0 |
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| 2004 | 51.2 | 69 | 60.9 | 81 | 41.5 | 52 | 4.49 | 21 | 0 |
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| 2003 | 53.4 | 31 | 64.8 | 24 | 41.9 | 45 | 2.45 | 103 | 0 |
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| 2002 | 52.7 | 37 | 63.2 | 41 | 42.2 | 42 | 3.05 | 81 | 0 |
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| 2001 | 54.3 | 21 | 66 | 13 | 42.6 | 33 | 3.75 | 45 | 0 |
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| 2000 | 50.2 | 91 | 60.7 | 88 | 39.6 | 98 | 3.15 | 73 | 0 |
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| 1999 | 51.8 | 55 | 62.7 | 49 | 40.9 | 68 | 4.19 | 36 | 0 |
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| 1998 | 51 | 75 | 61.8 | 65 | 40.2 | 90 | 5.00 | 13 | 0 |
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| 1997 | 46.4 | 140 | 58 | 122 | 34.8 | 148 | 1.57 | 138 | 0 |
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| 1996 | 50.7 | 80 | 62.9 | 45 | 38.4 | 122 | 4.42 | 24 | 0 |
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| 1995 | 48.6 | 117 | 59.9 | 98 | 37.2 | 137 | 1.70 | 132 | 0 |
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| 1994 | 53.9 | 25 | 66 | 13 | 41.8 | 46 | 3.72 | 47 | 0 |
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| 1993 | 50 | 96 | 60.7 | 88 | 39.3 | 106 | 3.66 | 51 | 0 |
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| 1992 | 51.2 | 69 | 61.4 | 74 | 41.1 | 62 | 2.30 | 110 | 0 |
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| 1991 | 54.5 | 16 | 64.4 | 27 | 44.5 | 13 | 2.56 | 99 | 0 |
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| 1990 | 51.3 | 66 | 62.4 | 54 | 40.2 | 90 | 3.48 | 58 | 0 |
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| 1989 | 47 | 133 | 57.6 | 126 | 36.4 | 140 | 1.43 | 141 | 0 |
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| 1988 | 49.4 | 106 | 60.2 | 94 | 38.6 | 117 | 1.97 | 125 | 0 |
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| 1987 | 50 | 96 | 60.1 | 96 | 39.8 | 97 | 5.30 | 8 | 0 |
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| 1986 | 53.1 | 33 | 64.5 | 26 | 41.7 | 47 | 1.94 | 126 | 0 |
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| 1985 | 55 | 13 | 66.8 | 11 | 43.2 | 23 | 1.64 | 135 | 0 |
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| 1984 | 49.1 | 111 | 59.2 | 105 | 39.1 | 109 | 3.72 | 47 | 0 |
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| 1983 | 47.1 | 130 | 55.7 | 141 | 38.5 | 119 | 4.33 | 29 | 0 |
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| 1982 | 45.3 | 146 | 57.4 | 128 | 33.2 | 152 | 1.44 | 140 | 0 |
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| 1981 | 51.9 | 53 | 63.4 | 37 | 40.3 | 86 | 4.92 | 15 | 0 |
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| 1980 | 48.1 | 123 | 58.3 | 118 | 37.9 | 130 | 2.94 | 85 | 0 |
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| 1979 | 49.7 | 101 | 59.8 | 99 | 39.6 | 98 | 3.17 | 71 | 0 |
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| 1978 | 51 | 75 | 61.8 | 65 | 40.1 | 92 | 2.25 | 113 | 0 |
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| 1977 | 50.7 | 80 | 62.6 | 52 | 38.9 | 112 | 3.26 | 67 | 0 |
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| 1976 | 50.6 | 83 | 62.1 | 61 | 39 | 111 | 1.24 | 149 | 0 |
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| 1975 | 44.3 | 148 | 54.4 | 149 | 34.1 | 149 | 2.27 | 112 | 0 |
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| 1974 | 51.8 | 55 | 62.4 | 54 | 41.1 | 62 | 3.26 | 67 | 0 |
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| 1973 | 49.3 | 107 | 57.4 | 128 | 41.2 | 59 | 4.69 | 18 | 0 |
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| 1972 | 48.5 | 119 | 59.7 | 100 | 37.3 | 135 | 4.37 | 28 | 0 |
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| 1971 | 46 | 143 | 57.9 | 123 | 34.1 | 149 | 0.48 | 156 | 0 |
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| 1970 | 52.4 | 41 | 63.5 | 35 | 41.4 | 54 | 3.09 | 76 | 0 |
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| 1969 | 51.7 | 57 | 64 | 30 | 39.4 | 103 | 2.91 | 87 | 0 |
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| 1968 | 51.2 | 69 | 62.9 | 45 | 39.5 | 102 | 2.33 | 109 | 0 |
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| 1967 | 52.2 | 46 | 63.1 | 43 | 41.3 | 57 | 4.41 | 27 | 0 |
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| 1966 | 47.9 | 126 | 56.3 | 137 | 39.4 | 103 | 3.73 | 46 | 0 |
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| 1965 | 48.9 | 114 | 59.7 | 100 | 38.2 | 126 | 1.79 | 130 | 0 |
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| 1964 | 51.7 | 57 | 62.7 | 49 | 40.6 | 74 | 7.61 | 3 | 0 |
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| 1963 | 49 | 113 | 61.1 | 77 | 36.8 | 138 | 2.39 | 106 | 0 |
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| 1962 | 48.4 | 120 | 58.2 | 119 | 38.5 | 119 | 3.03 | 82 | 0 |
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| 1961 | 43.9 | 150 | 52.5 | 151 | 35.4 | 144 | 5.21 | 11 | 0 |
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| 1960 | 54 | 23 | 65.8 | 15 | 42.2 | 42 | 1.37 | 144 | 0 |
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| 1959 | 51.2 | 69 | 61.9 | 64 | 40.6 | 74 | 3.33 | 64 | 0 |
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| 1958 | 51.1 | 73 | 61.8 | 65 | 40.5 | 78 | 3.42 | 61 | 0 |
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| 1957 | 52.7 | 37 | 62.2 | 58 | 43.1 | 27 | 4.58 | 20 | 0 |
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| 1956 | 47 | 133 | 56.7 | 132 | 37.3 | 135 | 4.25 | 34 | 0 |
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| 1955 | 56 | 9 | 66.9 | 8 | 45.2 | 10 | 2.61 | 94 | 0 |
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| 1954 | 55.8 | 10 | 67.9 | 4 | 43.7 | 16 | 3.11 | 75 | 0 |
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| 1953 | 46.8 | 136 | 55.5 | 143 | 38.1 | 128 | 3.91 | 42 | 0 |
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| 1952 | 52.1 | 48 | 60.9 | 81 | 43.2 | 23 | 3.96 | 40 | 0 |
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| 1951 | 49.2 | 109 | 58.7 | 112 | 39.6 | 98 | 4.86 | 17 | 0 |
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| 1950 | 45.9 | 144 | 55.8 | 140 | 36 | 142 | 2.29 | 111 | 0 |
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| 1949 | 49.6 | 103 | 59.7 | 100 | 39.4 | 103 | 2.57 | 98 | 0 |
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| 1948 | 54.7 | 15 | 65.5 | 19 | 43.9 | 15 | 6.03 | 5 | 0 |
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| 1947 | 52 | 51 | 63.6 | 33 | 40.3 | 86 | 2.49 | 102 | 0 |
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| 1946 | 50.1 | 94 | 61.1 | 77 | 39.1 | 109 | 1.15 | 152 | 0 |
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| 1945 | 54.4 | 19 | 65.8 | 15 | 43 | 29 | 3.81 | 44 | 0 |
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| 1944 | 48.4 | 120 | 58.1 | 120 | 38.6 | 117 | 3.24 | 69 | 0 |
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| 1943 | 44.3 | 148 | 54.5 | 148 | 34 | 151 | 2.38 | 107 | 0 |
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| 1942 | 54.5 | 16 | 65.7 | 17 | 43.4 | 21 | 3.08 | 78 | 0 |
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| 1941 | 57 | 5 | 69.2 | 2 | 44.7 | 11 | 1.36 | 145 | 0 |
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| 1940 | 46.5 | 139 | 56.6 | 133 | 36.5 | 139 | 5.26 | 9 | 0 |
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| 1939 | 47.1 | 130 | 56.5 | 135 | 37.8 | 131 | 3.16 | 72 | 0 |
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| 1938 | 52.1 | 48 | 62.2 | 58 | 42.1 | 44 | 3.27 | 65 | 0 |
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| 1937 | 47.7 | 127 | 56.8 | 130 | 38.7 | 116 | 5.62 | 6 | 0 |
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| 1936 | 45.4 | 145 | 55 | 144 | 35.9 | 143 | 2.11 | 118 | 0 |
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| 1935 | 50 | 96 | 59.1 | 108 | 40.9 | 68 | 1.91 | 127 | 0 |
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| 1934 | 50.4 | 88 | 60.8 | 86 | 39.9 | 95 | 2.41 | 104 | 0 |
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| 1933 | 51.7 | 57 | 61.7 | 70 | 41.6 | 49 | 4.25 | 34 | 0 |
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| 1932 | 48.9 | 114 | 59.6 | 103 | 38.2 | 126 | 1.16 | 151 | 0 |
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| 1931 | 50.6 | 83 | 60.6 | 90 | 40.6 | 74 | 3.61 | 54 | 0 |
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| 1930 | 51.5 | 62 | 61.4 | 74 | 41.6 | 49 | 2.60 | 95 | 0 |
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| 1929 | 53.5 | 29 | 62.4 | 54 | 44.5 | 13 | 4.29 | 32 | 0 |
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| 1928 | 46.6 | 138 | 54.8 | 146 | 38.4 | 122 | 4.05 | 37 | 0 |
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| 1927 | 49.9 | 99 | 59.3 | 104 | 40.5 | 78 | 3.15 | 73 | 0 |
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| 1926 | 44.9 | 147 | 54.9 | 145 | 34.9 | 147 | 1.46 | 139 | 0 |
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| 1925 | 54.4 | 19 | 65.5 | 19 | 43.4 | 21 | 1.43 | 141 | 0 |
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| 1924 | 49.8 | 100 | 59.1 | 108 | 40.5 | 78 | 3.09 | 76 | 0 |
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| 1923 | 49.7 | 101 | 60.6 | 90 | 38.9 | 112 | 3.82 | 43 | 0 |
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| 1922 | 52.6 | 39 | 62.1 | 61 | 43.1 | 27 | 3.56 | 56 | 0 |
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| 1921 | 56.9 | 6 | 67.1 | 6 | 46.7 | 5 | 1.66 | 134 | 0 |
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| 1920 | 47 | 133 | 55.6 | 142 | 38.4 | 122 | 4.42 | 24 | 0 |
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| 1919 | 50.9 | 79 | 60.2 | 94 | 41.7 | 47 | 3.07 | 79 | 0 |
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| 1918 | 49.3 | 107 | 58.5 | 116 | 40.1 | 92 | 2.73 | 91 | 0 |
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| 1917 | 49.5 | 104 | 58.7 | 112 | 40.4 | 81 | 2.20 | 116 | 0 |
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| 1916 | 49.2 | 109 | 57.6 | 126 | 40.9 | 68 | 2.54 | 100 | 0 |
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| 1915 | 55.5 | 11 | 65.6 | 18 | 45.4 | 9 | 1.27 | 147 | 0 |
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| 1914 | 49.5 | 104 | 58.9 | 111 | 40 | 94 | 3.98 | 39 | 0 |
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| 1913 | 51.6 | 60 | 60.9 | 81 | 42.3 | 39 | 2.53 | 101 | 0 |
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| 1912 | 52.6 | 39 | 62.7 | 49 | 42.6 | 33 | 4.32 | 30 | 0 |
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| 1911 | 48.1 | 123 | 56.3 | 137 | 39.9 | 95 | 5.42 | 7 | 0 |
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| 1910 | 52.8 | 35 | 62.8 | 47 | 42.8 | 31 | 2.21 | 115 | 0 |
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| 1909 | 50.1 | 94 | 59.2 | 105 | 40.9 | 68 | 5.23 | 10 | 0 |
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| 1908 | 51.4 | 63 | 61.7 | 70 | 41.1 | 62 | 3.59 | 55 | 0 |
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| 1907 | 43.8 | 151 | 52.6 | 150 | 35 | 146 | 1.99 | 124 | 0 |
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| 1906 | 51.4 | 63 | 61.8 | 65 | 41.1 | 62 | 1.70 | 132 | 0 |
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| 1905 | 50.7 | 80 | 60.9 | 81 | 40.4 | 81 | 2.07 | 120 | 0 |
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| 1904 | 46.3 | 141 | 54.7 | 147 | 38 | 129 | 3.02 | 83 | 0 |
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| 1903 | 51.6 | 60 | 60.8 | 86 | 42.4 | 37 | 2.82 | 89 | 0 |
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| 1902 | 50.5 | 86 | 58.6 | 115 | 42.4 | 37 | 2.70 | 92 | 0 |
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| 1901 | 49.1 | 111 | 57.8 | 124 | 40.4 | 81 | 8.11 | 1 | 0 |
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| 1900 | 52.3 | 43 | 61.8 | 65 | 42.7 | 32 | 1.25 | 148 | 0 |
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| 1899 | 55 | 13 | 63.9 | 31 | 46.1 | 8 | 2.59 | 97 | 0 |
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| 1898 | 48.6 | 117 | 56.8 | 130 | 40.3 | 86 | 1.60 | 137 | 0 |
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| 1897 | 51 | 75 | 60.4 | 92 | 41.6 | 49 | 3.34 | 63 | 0 |
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| 1896 | 57.2 | 3 | 66.9 | 8 | 47.6 | 1 | 3.39 | 62 | 0 |
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| 1895 | 53.7 | 27 | 62.6 | 52 | 44.7 | 11 | 1.83 | 128 | 0 |
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| 1894 | 51.1 | 73 | 61 | 80 | 41.1 | 62 | 3.63 | 52 | 0 |
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| 1893 | 51.4 | 63 | 60.3 | 93 | 42.5 | 35 | 4.94 | 14 | 0 |
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| 1892 | 50.2 | 91 | 59.2 | 105 | 41.2 | 59 | 2.93 | 86 | 0 |
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| 1891 | 53.5 | 29 | 63.2 | 41 | 43.7 | 16 | 1.18 | 150 | 0 |
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| 1890 | | | | | 41.4 | 54 | 4.87 | 16 | 4 |
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| 1889 | 52.3 | 43 | 61.4 | 74 | 43.2 | 23 | 3.62 | 53 | 0 |
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| 1888 | 50.3 | 90 | 61.6 | 73 | 38.9 | 112 | 1.04 | 155 | 0 |
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| 1887 | 51.9 | 53 | 62.3 | 57 | 41.5 | 52 | 4.29 | 32 | 0 |
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| 1886 | 56.5 | 8 | 66.8 | 11 | 46.3 | 7 | 4.03 | 38 | 0 |
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| 1885 | 50.2 | 91 | 61.1 | 77 | 39.3 | 106 | 2.79 | 90 | 0 |
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| 1884 | 50.5 | 86 | 60 | 97 | 41.1 | 62 | 1.11 | 153 | 1 |
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| 1883 | 50.6 | 83 | 60.9 | 81 | 40.4 | 81 | 3.69 | 50 | 0 |
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| 1882 | 51 | 75 | 61.7 | 70 | 40.3 | 86 | 1.39 | 143 | 0 |
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| 1881 | 47.1 | 130 | 56 | 139 | 38.3 | 125 | 1.81 | 129 | 0 |
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| 1880 | 54.2 | 22 | 64.6 | 25 | 43.7 | 16 | 2.41 | 104 | 0 |
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| 1879 | 48.4 | 120 | 59.1 | 108 | 37.7 | 132 | 1.63 | 136 | 0 |
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| 1878 | 57.2 | 3 | 67 | 7 | 47.3 | 2 | 2.60 | 95 | 0 |
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| 1877 | 52 | 51 | 63.3 | 40 | 40.7 | 73 | 2.88 | 88 | 0 |
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| 1876 | 48.1 | 123 | 58.7 | 112 | 37.4 | 134 | 2.04 | 121 | 0 |
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| 1875 | 46.7 | 137 | 58.1 | 120 | 35.2 | 145 | 2.09 | 119 | 0 |
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| 1874 | | | | | | | 7.20 | 4 | 30 |
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| 1873 | | | | | | | 3.06 | 80 | 30 |
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| 1872 | | | | | | | 1.09 | 154 | 30 |
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| 1871 | | | | | | | 2.04 | 121 | 30 |
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