Every April in Lander, WY from 1892 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 | 45.2 | 36 | 59.1 | 33 | 31.3 | 54 | 1.36 | 89 | 0 |
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| 2025 | 43.8 | 57 | 56.6 | 58 | 31 | 60 | 2.57 | 41 | 0 |
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| 2024 | 46.4 | 26 | 59.6 | 23 | 33.1 | 26 | 1.20 | 98 | 0 |
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| 2023 | 39 | 116 | 51.5 | 112 | 26.5 | 118 | 2.83 | 33 | 0 |
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| 2022 | 40.3 | 108 | 53.7 | 90 | 26.9 | 115 | 1.34 | 92 | 0 |
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| 2021 | 41.8 | 78 | 54.6 | 76 | 29 | 90 | 2.44 | 45 | 0 |
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| 2020 | 41.2 | 94 | 55.4 | 71 | 26.9 | 115 | 2.35 | 52 | 0 |
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| 2019 | 44.6 | 43 | 56.7 | 57 | 32.4 | 35 | 2.66 | 38 | 0 |
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| 2018 | 43.9 | 56 | 58.5 | 36 | 29.4 | 82 | 1.49 | 84 | 0 |
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| 2017 | 42.4 | 74 | 53.9 | 87 | 31 | 60 | 3.26 | 24 | 0 |
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| 2016 | 44.6 | 43 | 55.4 | 71 | 33.8 | 19 | 4.61 | 10 | 0 |
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| 2015 | 45 | 38 | 57.8 | 42 | 32.2 | 39 | 2.31 | 56 | 0 |
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| 2014 | 44.1 | 52 | 57.8 | 42 | 30.3 | 70 | 0.70 | 127 | 0 |
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| 2013 | 38.1 | 120 | 50.5 | 118 | 25.7 | 126 | 3.14 | 25 | 0 |
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| 2012 | 49.4 | 7 | 63.8 | 6 | 35 | 7 | 1.02 | 112 | 0 |
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| 2011 | 41.7 | 81 | 55.6 | 69 | 27.9 | 106 | 1.10 | 106 | 0 |
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| 2010 | 42.6 | 73 | 53.7 | 90 | 31.4 | 50 | 2.29 | 57 | 0 |
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| 2009 | 41.7 | 81 | 52.2 | 107 | 31.1 | 58 | 3.61 | 16 | 0 |
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| 2008 | 40.9 | 102 | 55.8 | 66 | 26.1 | 125 | 0.90 | 116 | 0 |
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| 2007 | 45 | 38 | 57.8 | 42 | 32.2 | 39 | 0.19 | 134 | 0 |
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| 2006 | 47.2 | 15 | 60.9 | 20 | 33.5 | 23 | 1.25 | 96 | 0 |
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| 2005 | 44.2 | 50 | 57.1 | 52 | 31.3 | 54 | 1.66 | 78 | 0 |
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| 2004 | 44.5 | 47 | 55.8 | 66 | 33.2 | 25 | 3.48 | 18 | 0 |
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| 2003 | 47.7 | 13 | 60.7 | 21 | 34.6 | 10 | 0.88 | 118 | 0 |
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| 2002 | 43.5 | 64 | 57.2 | 50 | 29.7 | 78 | 1.27 | 95 | 0 |
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| 2001 | 45.8 | 31 | 58.6 | 35 | 32.9 | 30 | 1.07 | 108 | 0 |
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| 2000 | 47.2 | 15 | 61.4 | 14 | 33.1 | 26 | 1.71 | 73 | 0 |
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| 1999 | 37.3 | 126 | 46.4 | 132 | 28.1 | 103 | 6.44 | 2 | 0 |
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| 1998 | 42.8 | 72 | 54.2 | 85 | 31.5 | 48 | 1.17 | 101 | 0 |
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| 1997 | 37.3 | 126 | 49.1 | 125 | 25.4 | 128 | 2.39 | 50 | 0 |
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| 1996 | 44.6 | 43 | 57.2 | 50 | 32 | 44 | 0.65 | 128 | 0 |
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| 1995 | 41.7 | 81 | 51.9 | 110 | 31.5 | 48 | 3.33 | 23 | 0 |
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| 1994 | 46.2 | 28 | 59.8 | 22 | 32.5 | 33 | 1.76 | 72 | 0 |
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| 1993 | 43.6 | 58 | 54.7 | 75 | 32.5 | 33 | 1.90 | 69 | 0 |
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| 1992 | 50.7 | 2 | 65.2 | 1 | 36.1 | 4 | 0.21 | 133 | 0 |
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| 1991 | 41.5 | 86 | 52.3 | 103 | 30.7 | 67 | 2.83 | 33 | 0 |
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| 1990 | 46.3 | 27 | 59 | 34 | 33.7 | 21 | 1.90 | 69 | 0 |
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| 1989 | 47.5 | 14 | 61.2 | 15 | 33.7 | 21 | 1.13 | 104 | 0 |
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| 1988 | 48.8 | 8 | 63.1 | 9 | 34.4 | 11 | 0.93 | 114 | 0 |
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| 1987 | 50.7 | 2 | 64.9 | 4 | 36.5 | 2 | 1.36 | 89 | 0 |
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| 1986 | 44.9 | 41 | 57.4 | 48 | 32.3 | 37 | 2.15 | 62 | 0 |
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| 1985 | 48.3 | 12 | 62.7 | 10 | 33.9 | 16 | 0.83 | 121 | 0 |
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| 1984 | 40.2 | 111 | 51.3 | 114 | 29.2 | 86 | 3.61 | 16 | 0 |
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| 1983 | 37.9 | 123 | 47.8 | 129 | 27.9 | 106 | 3.34 | 22 | 0 |
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| 1982 | 41.3 | 90 | 54.5 | 80 | 28 | 104 | 0.76 | 124 | 0 |
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| 1981 | 48.4 | 10 | 62.4 | 11 | 34.4 | 11 | 1.11 | 105 | 0 |
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| 1980 | 45 | 38 | 57.7 | 46 | 32.2 | 39 | 1.68 | 75 | 0 |
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| 1979 | 44.1 | 52 | 57.8 | 42 | 30.4 | 69 | 1.69 | 74 | 0 |
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| 1978 | 45.2 | 36 | 57.5 | 47 | 33 | 28 | 1.28 | 94 | 0 |
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| 1977 | 46.7 | 21 | 59.4 | 26 | 33.9 | 16 | 1.47 | 85 | 0 |
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| 1976 | 44 | 54 | 56.5 | 59 | 31.4 | 50 | 1.17 | 101 | 0 |
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| 1975 | 36.9 | 130 | 48.2 | 127 | 25.5 | 127 | 1.68 | 75 | 0 |
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| 1974 | 43.6 | 58 | 55.7 | 68 | 31.6 | 46 | 2.35 | 52 | 0 |
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| 1973 | 34.1 | 134 | 43.9 | 135 | 24.3 | 133 | 4.02 | 14 | 0 |
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| 1972 | 43.2 | 68 | 56.5 | 59 | 30 | 71 | 2.16 | 61 | 0 |
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| 1971 | 40.9 | 102 | 53.7 | 90 | 28.2 | 100 | 5.22 | 8 | 0 |
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| 1970 | 36.7 | 131 | 47.1 | 131 | 26.4 | 121 | 2.56 | 42 | 0 |
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| 1969 | 47 | 19 | 59.3 | 29 | 34.7 | 9 | 2.32 | 55 | 0 |
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| 1968 | 38.7 | 117 | 50.8 | 116 | 26.5 | 118 | 2.43 | 46 | 0 |
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| 1967 | 41.3 | 90 | 53.9 | 87 | 28.8 | 94 | 2.42 | 47 | 0 |
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| 1966 | 39.9 | 112 | 53.4 | 94 | 26.5 | 118 | 2.19 | 60 | 0 |
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| 1965 | 45.3 | 34 | 56.4 | 61 | 34.3 | 14 | 1.60 | 80 | 0 |
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| 1964 | 41 | 100 | 52.6 | 100 | 29.5 | 81 | 2.97 | 29 | 0 |
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| 1963 | 41.1 | 97 | 53.2 | 95 | 28.9 | 92 | 3.38 | 20 | 0 |
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| 1962 | 47.1 | 18 | 61.2 | 15 | 33 | 28 | 1.91 | 68 | 0 |
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| 1961 | 41.7 | 81 | 55.3 | 74 | 28.2 | 100 | 0.85 | 120 | 0 |
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| 1960 | 45.4 | 33 | 59.2 | 32 | 31.6 | 46 | 1.07 | 108 | 0 |
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| 1959 | 43.4 | 66 | 56.8 | 56 | 30 | 71 | 1.24 | 97 | 0 |
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| 1958 | 41 | 100 | 52.3 | 103 | 29.8 | 75 | 2.46 | 44 | 0 |
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| 1957 | 38 | 122 | 48.9 | 126 | 27.1 | 113 | 5.46 | 4 | 0 |
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| 1956 | 42 | 76 | 54.2 | 85 | 29.8 | 75 | 1.96 | 66 | 0 |
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| 1955 | 41.3 | 90 | 54.6 | 76 | 27.9 | 106 | 1.50 | 83 | 0 |
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| 1954 | 46.7 | 21 | 61.1 | 17 | 32.3 | 37 | 1.06 | 110 | 0 |
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| 1953 | 38.6 | 118 | 50.7 | 117 | 26.6 | 117 | 2.81 | 35 | 0 |
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| 1952 | 46.9 | 20 | 59.5 | 24 | 34.2 | 15 | 2.05 | 64 | 0 |
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| 1951 | 40.7 | 106 | 53.9 | 87 | 27.5 | 110 | 1.67 | 77 | 0 |
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| 1950 | 41.8 | 78 | 54.6 | 76 | 28.9 | 92 | 1.93 | 67 | 0 |
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| 1949 | 48.4 | 10 | 61.7 | 12 | 35.1 | 6 | 0.99 | 113 | 0 |
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| 1948 | 44 | 54 | 57 | 53 | 31.1 | 58 | 0.78 | 123 | 0 |
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| 1947 | 40.8 | 105 | 52.3 | 103 | 29.3 | 84 | 2.80 | 36 | 0 |
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| 1946 | 49.8 | 5 | 65.2 | 1 | 34.4 | 11 | 0.47 | 132 | 0 |
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| 1945 | 33.4 | 135 | 46 | 133 | 20.8 | 135 | 5.02 | 9 | 0 |
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| 1944 | 40.9 | 102 | 51.4 | 113 | 30.5 | 68 | 5.24 | 7 | 0 |
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| 1943 | 49.8 | 5 | 63.4 | 8 | 36.2 | 3 | 2.91 | 30 | 0 |
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| 1942 | 47.2 | 15 | 59.5 | 24 | 34.9 | 8 | 1.35 | 91 | 0 |
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| 1941 | 41.2 | 94 | 50.2 | 119 | 32.2 | 39 | 5.32 | 6 | 0 |
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| 1940 | 43.6 | 58 | 54.6 | 76 | 32.6 | 32 | 3.44 | 19 | 0 |
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| 1939 | 46.5 | 24 | 61.1 | 17 | 31.9 | 45 | 0.80 | 122 | 0 |
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| 1938 | 44.2 | 50 | 57 | 53 | 31.4 | 50 | 2.88 | 32 | 0 |
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| 1937 | 41.5 | 86 | 53.7 | 90 | 29.2 | 86 | 2.58 | 40 | 0 |
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| 1936 | 44.5 | 47 | 58.1 | 37 | 30.9 | 64 | 1.39 | 87 | 0 |
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| 1935 | 40.3 | 108 | 52.5 | 101 | 28 | 104 | 2.91 | 30 | 0 |
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| 1934 | 46.5 | 24 | 59.4 | 26 | 33.5 | 23 | 3.10 | 28 | 0 |
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| 1933 | 38.2 | 119 | 50 | 121 | 26.3 | 123 | 4.07 | 13 | 0 |
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| 1932 | 43.1 | 69 | 55.4 | 71 | 30.9 | 64 | 2.33 | 54 | 0 |
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| 1931 | 43.6 | 58 | 55.9 | 65 | 31.4 | 50 | 1.82 | 71 | 0 |
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| 1930 | 50.5 | 4 | 65.1 | 3 | 35.9 | 5 | 0.10 | 135 | 0 |
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| 1929 | 40.3 | 108 | 51.1 | 115 | 29.6 | 79 | 4.27 | 11 | 0 |
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| 1928 | 39.8 | 113 | 52.2 | 107 | 27.3 | 112 | 0.89 | 117 | 0 |
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| 1927 | 41.1 | 97 | 52.5 | 101 | 29.6 | 79 | 3.38 | 20 | 0 |
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| 1926 | 46.6 | 23 | 59.3 | 29 | 33.8 | 19 | 0.73 | 126 | 0 |
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| 1925 | 46 | 30 | 58.1 | 37 | 33.9 | 16 | 0.57 | 130 | 0 |
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| 1924 | 40.5 | 107 | 52.2 | 107 | 28.8 | 94 | 1.56 | 82 | 0 |
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| 1923 | 41.2 | 94 | 53 | 97 | 29.3 | 84 | 2.38 | 51 | 0 |
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| 1922 | 37.8 | 124 | 48 | 128 | 27.5 | 110 | 3.65 | 15 | 0 |
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| 1921 | 39.4 | 114 | 52.3 | 103 | 26.4 | 121 | 2.73 | 37 | 0 |
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| 1920 | 35.3 | 133 | 45.8 | 134 | 24.8 | 131 | 3.13 | 26 | 0 |
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| 1919 | 44.7 | 42 | 57.3 | 49 | 32.2 | 39 | 0.93 | 114 | 0 |
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| 1918 | 36.5 | 132 | 47.8 | 129 | 25.3 | 129 | 2.62 | 39 | 0 |
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| 1917 | 38.1 | 120 | 49.9 | 122 | 26.2 | 124 | 2.42 | 47 | 0 |
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| 1916 | 43.5 | 64 | 57 | 53 | 30 | 71 | 0.62 | 129 | 0 |
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| 1915 | 51.1 | 1 | 63.6 | 7 | 38.6 | 1 | 1.39 | 87 | 0 |
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| 1914 | 42 | 76 | 52.8 | 99 | 31.2 | 57 | 5.36 | 5 | 0 |
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| 1913 | 44.6 | 43 | 58.1 | 37 | 31 | 60 | 2.23 | 59 | 0 |
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| 1912 | 41.1 | 97 | 53.1 | 96 | 29.1 | 88 | 1.64 | 79 | 0 |
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| 1911 | 41.3 | 90 | 54.5 | 80 | 28.2 | 100 | 0.88 | 118 | 0 |
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| 1910 | 48.5 | 9 | 64.5 | 5 | 32.4 | 35 | 1.30 | 93 | 0 |
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| 1909 | 37.2 | 128 | 50.2 | 119 | 24.1 | 134 | 2.01 | 65 | 0 |
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| 1908 | 45.5 | 32 | 61 | 19 | 30 | 71 | 1.57 | 81 | 0 |
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| 1907 | 41.4 | 89 | 54.4 | 83 | 28.4 | 99 | 1.19 | 100 | 0 |
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| 1906 | 43.6 | 58 | 56.2 | 62 | 31 | 60 | 2.29 | 57 | 0 |
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| 1905 | 42.3 | 75 | 55.6 | 69 | 29 | 90 | 2.55 | 43 | 0 |
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| 1904 | 44.4 | 49 | 59.4 | 26 | 29.4 | 82 | 1.05 | 111 | 0 |
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| 1903 | 41.5 | 86 | 54.4 | 83 | 28.5 | 98 | 2.41 | 49 | 0 |
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| 1902 | 41.8 | 78 | 56 | 63 | 27.6 | 109 | 1.43 | 86 | 0 |
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| 1901 | 41.6 | 85 | 54.5 | 80 | 28.6 | 96 | 3.11 | 27 | 0 |
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| 1900 | 42.9 | 70 | 53 | 97 | 32.7 | 31 | 7.19 | 1 | 0 |
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| 1899 | 43.3 | 67 | 58 | 41 | 28.6 | 96 | 0.49 | 131 | 0 |
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| 1898 | 45.3 | 34 | 59.3 | 29 | 31.3 | 54 | 1.08 | 107 | 0 |
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| 1897 | 42.9 | 70 | 56 | 63 | 29.8 | 75 | 1.14 | 103 | 0 |
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| 1896 | 39.4 | 114 | 51.8 | 111 | 27 | 114 | 1.20 | 98 | 0 |
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| 1895 | 46.2 | 28 | 61.6 | 13 | 30.8 | 66 | 5.71 | 3 | 0 |
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| 1894 | 43.6 | 58 | 58.1 | 37 | 29.1 | 88 | 0.75 | 125 | 0 |
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| 1893 | 37.1 | 129 | 49.6 | 124 | 24.5 | 132 | 2.14 | 63 | 0 |
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| 1892 | 37.4 | 125 | 49.8 | 123 | 24.9 | 130 | 4.13 | 12 | 0 |
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