Every January 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 | 31.1 | 2 | 43.8 | 2 | 18.5 | 2 | 0.06 | 120 | 0 |
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| 2025 | 14.3 | 113 | 25.6 | 114 | 2.9 | 109 | 0.87 | 23 | 0 |
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| 2024 | 17.2 | 99 | 27.6 | 106 | 6.9 | 84 | 0.46 | 60 | 1 |
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| 2023 | 13.4 | 117 | 22.1 | 124 | 4.7 | 100 | 2.55 | 1 | 0 |
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| 2022 | 25.6 | 23 | 37.8 | 22 | 13.4 | 24 | 0.71 | 33 | 0 |
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| 2021 | 25.4 | 24 | 37 | 29 | 13.9 | 21 | 0.09 | 117 | 0 |
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| 2020 | 23.8 | 34 | 34.2 | 51 | 13.4 | 24 | 0.24 | 93 | 0 |
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| 2019 | 17.7 | 94 | 28.8 | 97 | 6.6 | 87 | 0.80 | 24 | 0 |
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| 2018 | 22.9 | 42 | 33.2 | 61 | 12.6 | 31 | 0.68 | 35 | 0 |
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| 2017 | 12.2 | 118 | 22.2 | 123 | 2.3 | 115 | 1.27 | 5 | 0 |
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| 2016 | 20.5 | 67 | 31.1 | 84 | 9.9 | 51 | 0.42 | 69 | 0 |
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| 2015 | 22.4 | 47 | 32.2 | 73 | 12.6 | 31 | trace | 131 | 0 |
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| 2014 | 24.7 | 29 | 36.4 | 36 | 13 | 27 | 0.61 | 47 | 0 |
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| 2013 | 18.5 | 88 | 30.2 | 93 | 6.7 | 86 | 0.70 | 34 | 0 |
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| 2012 | 27.6 | 14 | 39.2 | 16 | 16 | 11 | 0.44 | 63 | 0 |
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| 2011 | 22.6 | 44 | 34.1 | 53 | 11.2 | 38 | 0.59 | 48 | 0 |
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| 2010 | 17.3 | 98 | 27.7 | 103 | 6.8 | 85 | 0.37 | 75 | 0 |
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| 2009 | 28 | 13 | 40.7 | 10 | 15.2 | 18 | 0.24 | 93 | 0 |
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| 2008 | 14.9 | 109 | 25.6 | 114 | 4.3 | 101 | 0.21 | 99 | 0 |
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| 2007 | 14.5 | 111 | 25.6 | 114 | 3.3 | 106 | 0.67 | 37 | 0 |
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| 2006 | 30.3 | 3 | 42.6 | 4 | 18 | 4 | 0.14 | 110 | 0 |
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| 2005 | 23.6 | 36 | 34.3 | 49 | 13 | 27 | 0.80 | 24 | 0 |
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| 2004 | 19.1 | 84 | 29.5 | 96 | 8.8 | 60 | 0.10 | 115 | 0 |
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| 2003 | 28.3 | 10 | 38.7 | 19 | 17.9 | 5 | 0.32 | 80 | 0 |
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| 2002 | 21.9 | 56 | 33.2 | 61 | 10.6 | 46 | 0.28 | 85 | 0 |
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| 2001 | 18 | 91 | 28.2 | 101 | 7.8 | 74 | 0.14 | 110 | 0 |
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| 2000 | 27.6 | 14 | 39.8 | 14 | 15.4 | 16 | 0.02 | 127 | 0 |
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| 1999 | 29.4 | 6 | 41.9 | 7 | 16.9 | 7 | 0.10 | 115 | 0 |
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| 1998 | 23.5 | 37 | 33.6 | 57 | 13.5 | 23 | 0.13 | 112 | 0 |
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| 1997 | 22 | 52 | 32.4 | 68 | 11.6 | 36 | 0.67 | 37 | 0 |
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| 1996 | 19.9 | 77 | 31.8 | 80 | 8 | 71 | 0.67 | 37 | 0 |
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| 1995 | 20.3 | 71 | 30.8 | 87 | 9.8 | 52 | 0.66 | 42 | 0 |
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| 1994 | 28.7 | 8 | 40.6 | 11 | 16.8 | 8 | 1.10 | 8 | 0 |
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| 1993 | 11.4 | 121 | 21.7 | 127 | 1.1 | 117 | 1.00 | 15 | 0 |
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| 1992 | 20.6 | 65 | 32.1 | 76 | 9.1 | 57 | 0.51 | 55 | 0 |
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| 1991 | 18.9 | 86 | 30.2 | 93 | 7.6 | 77 | 0.41 | 71 | 0 |
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| 1990 | 29.1 | 7 | 39.7 | 15 | 18.5 | 2 | 0.02 | 127 | 0 |
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| 1989 | 24.8 | 27 | 38.8 | 17 | 10.8 | 43 | 0.04 | 125 | 0 |
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| 1988 | 19.1 | 84 | 30.5 | 90 | 7.7 | 75 | 0.05 | 122 | 0 |
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| 1987 | 16.8 | 101 | 27.7 | 103 | 6 | 92 | 0.79 | 26 | 0 |
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| 1986 | 21.9 | 56 | 33.2 | 61 | 10.7 | 45 | 0.30 | 84 | 0 |
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| 1985 | 16.2 | 104 | 26.7 | 110 | 5.7 | 95 | 0.45 | 62 | 0 |
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| 1984 | 16.1 | 105 | 26.5 | 111 | 5.7 | 95 | 0.95 | 16 | 0 |
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| 1983 | 26.2 | 22 | 36.7 | 34 | 15.8 | 13 | 0.08 | 118 | 0 |
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| 1982 | 22 | 52 | 35 | 44 | 9.1 | 57 | 0.44 | 63 | 0 |
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| 1981 | 28.5 | 9 | 40.9 | 9 | 16.1 | 10 | 0.67 | 37 | 0 |
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| 1980 | 14 | 115 | 27.2 | 107 | 0.7 | 118 | 0.95 | 16 | 0 |
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| 1979 | 1.3 | 134 | 12.7 | 134 | -10.1 | 134 | 0.75 | 28 | 0 |
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| 1978 | 17.4 | 97 | 27.9 | 102 | 7 | 82 | 0.59 | 48 | 0 |
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| 1977 | 15.9 | 106 | 28.4 | 99 | 3.4 | 105 | 0.53 | 54 | 0 |
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| 1976 | 19.2 | 83 | 32.1 | 76 | 6.2 | 90 | 0.27 | 88 | 0 |
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| 1975 | 20.9 | 61 | 33.4 | 58 | 8.4 | 67 | 0.74 | 30 | 0 |
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| 1974 | 18.2 | 90 | 30.5 | 90 | 5.9 | 94 | 0.43 | 66 | 0 |
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| 1973 | 9.4 | 127 | 19.9 | 129 | -1.2 | 121 | 0.89 | 21 | 0 |
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| 1972 | 19.5 | 78 | 31 | 86 | 8.1 | 70 | 1.08 | 9 | 0 |
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| 1971 | 26.5 | 19 | 37 | 29 | 16 | 11 | 0.36 | 77 | 0 |
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| 1970 | 24.4 | 31 | 36.1 | 38 | 12.7 | 29 | 0.06 | 120 | 0 |
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| 1969 | 25.3 | 25 | 36.6 | 35 | 13.9 | 21 | 0.12 | 114 | 0 |
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| 1968 | 15.5 | 107 | 26.8 | 108 | 4.2 | 103 | 0.17 | 104 | 0 |
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| 1967 | 26.5 | 19 | 37.5 | 25 | 15.6 | 15 | 0.25 | 91 | 0 |
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| 1966 | 22.6 | 44 | 34.4 | 48 | 10.9 | 42 | 0.27 | 88 | 0 |
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| 1965 | 29.7 | 4 | 41.6 | 8 | 17.7 | 6 | 0.19 | 101 | 0 |
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| 1964 | 20.4 | 70 | 32.3 | 70 | 8.5 | 64 | 0.43 | 66 | 0 |
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| 1963 | 6.9 | 131 | 19.7 | 131 | -5.9 | 131 | 1.13 | 6 | 0 |
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| 1962 | 8.6 | 128 | 19.8 | 130 | -2.6 | 127 | 1.34 | 4 | 0 |
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| 1961 | 22.1 | 50 | 34.2 | 51 | 10 | 49 | 0.13 | 112 | 0 |
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| 1960 | 18 | 91 | 28.6 | 98 | 7.4 | 80 | 0.72 | 32 | 0 |
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| 1959 | 20.5 | 67 | 32.3 | 70 | 8.7 | 61 | 0.76 | 27 | 0 |
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| 1958 | 23 | 40 | 34.7 | 46 | 11.2 | 38 | 0.16 | 105 | 0 |
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| 1957 | 14.7 | 110 | 26.8 | 108 | 2.7 | 111 | 0.15 | 107 | 0 |
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| 1956 | 22 | 52 | 31.8 | 80 | 12.1 | 35 | 0.67 | 37 | 0 |
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| 1955 | 22.9 | 42 | 35.5 | 40 | 10.2 | 47 | 0.05 | 122 | 0 |
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| 1954 | 27.1 | 16 | 38.8 | 17 | 15.4 | 16 | 0.46 | 60 | 0 |
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| 1953 | 31.8 | 1 | 44.8 | 1 | 18.8 | 1 | 0.66 | 42 | 0 |
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| 1952 | 21.4 | 59 | 34 | 54 | 8.7 | 61 | trace | 131 | 0 |
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| 1951 | 20.5 | 67 | 33.4 | 58 | 7.5 | 79 | 0.18 | 102 | 0 |
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| 1950 | 17.7 | 94 | 30.2 | 93 | 5.2 | 98 | 0.38 | 74 | 0 |
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| 1949 | 1.4 | 133 | 11.3 | 135 | -8.4 | 132 | 1.65 | 3 | 0 |
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| 1948 | 19.5 | 78 | 31.1 | 84 | 7.9 | 72 | 0.93 | 19 | 0 |
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| 1947 | 19.4 | 80 | 30.8 | 87 | 7.9 | 72 | 0.21 | 99 | 0 |
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| 1946 | 24.1 | 33 | 36.9 | 32 | 11.4 | 37 | 0.31 | 81 | 0 |
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| 1945 | 20.3 | 71 | 32.9 | 64 | 7.6 | 77 | 0.37 | 75 | 0 |
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| 1944 | 11.2 | 122 | 22.4 | 122 | 0.1 | 119 | 0.94 | 18 | 0 |
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| 1943 | 22.3 | 48 | 35.3 | 41 | 9.3 | 55 | 1.04 | 12 | 0 |
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| 1942 | 10.7 | 123 | 23 | 120 | -1.7 | 124 | 0.55 | 52 | 0 |
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| 1941 | 20.8 | 62 | 32.4 | 68 | 9.1 | 57 | 0.15 | 107 | 0 |
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| 1940 | 14.2 | 114 | 26 | 113 | 2.4 | 114 | 0.51 | 55 | 0 |
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| 1939 | 25.2 | 26 | 37.6 | 23 | 12.7 | 29 | 0.28 | 85 | 0 |
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| 1938 | 22.1 | 50 | 35 | 44 | 9.2 | 56 | 0.63 | 45 | 0 |
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| 1937 | 0.8 | 135 | 13.9 | 133 | -12.2 | 135 | 0.39 | 73 | 0 |
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| 1936 | 22.6 | 44 | 35.2 | 43 | 10 | 49 | 0.26 | 90 | 0 |
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| 1935 | 26.8 | 18 | 40.3 | 12 | 13.4 | 24 | 0.05 | 122 | 0 |
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| 1934 | 29.5 | 5 | 43.3 | 3 | 15.8 | 13 | 0.01 | 130 | 0 |
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| 1933 | 22 | 52 | 35.7 | 39 | 8.4 | 67 | 0.42 | 69 | 0 |
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| 1932 | 9.6 | 126 | 21.8 | 125 | -2.5 | 126 | 0.93 | 19 | 0 |
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| 1931 | 24.8 | 27 | 38.4 | 21 | 11.2 | 38 | trace | 131 | 0 |
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| 1930 | 3 | 132 | 14.6 | 132 | -8.6 | 133 | 0.54 | 53 | 0 |
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| 1929 | 10.6 | 124 | 22.8 | 121 | -1.6 | 123 | 0.15 | 107 | 0 |
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| 1928 | 23.2 | 39 | 35.3 | 41 | 11.2 | 38 | 0.31 | 81 | 0 |
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| 1927 | 21.2 | 60 | 32.8 | 66 | 9.6 | 54 | 0.31 | 81 | 0 |
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| 1926 | 14.4 | 112 | 26.1 | 112 | 2.7 | 111 | 1.06 | 11 | 0 |
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| 1925 | 20.8 | 62 | 33.3 | 60 | 8.2 | 69 | 0.04 | 125 | 0 |
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| 1924 | 12.2 | 118 | 24.5 | 118 | -0.1 | 120 | 0.64 | 44 | 0 |
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| 1923 | 27 | 17 | 37.1 | 28 | 16.8 | 8 | 0.41 | 71 | 0 |
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| 1922 | 7.4 | 130 | 20.4 | 128 | -5.6 | 130 | 1.13 | 6 | 0 |
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| 1921 | 20.7 | 64 | 32.9 | 64 | 8.6 | 63 | 0.28 | 85 | 0 |
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| 1920 | 20.2 | 74 | 31.9 | 78 | 8.5 | 64 | 1.08 | 9 | 0 |
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| 1919 | 22.2 | 49 | 37.5 | 25 | 7 | 82 | 0.00 | 135 | 0 |
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| 1918 | 16.8 | 101 | 30.5 | 90 | 3.2 | 107 | 1.02 | 14 | 0 |
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| 1917 | 13.5 | 116 | 28.4 | 99 | -1.4 | 122 | 0.74 | 30 | 0 |
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| 1916 | 8.6 | 128 | 21.8 | 125 | -4.6 | 129 | 1.03 | 13 | 0 |
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| 1915 | 19.3 | 82 | 33.7 | 56 | 4.9 | 99 | 0.44 | 63 | 0 |
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| 1914 | 23.5 | 37 | 36.3 | 37 | 10.8 | 43 | 0.08 | 118 | 0 |
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| 1913 | 20.6 | 65 | 33.9 | 55 | 7.3 | 81 | 0.49 | 57 | 0 |
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| 1912 | 18 | 91 | 31.9 | 78 | 4.1 | 104 | 0.36 | 77 | 0 |
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| 1911 | 28.1 | 12 | 42 | 6 | 14.2 | 19 | 0.23 | 96 | 0 |
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| 1910 | 11.8 | 120 | 25.5 | 117 | -2 | 125 | 2.06 | 2 | 0 |
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| 1909 | 24.4 | 31 | 38.7 | 19 | 10.2 | 47 | 0.43 | 66 | 0 |
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| 1908 | 20 | 75 | 34.3 | 49 | 5.6 | 97 | 0.59 | 48 | 0 |
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| 1907 | 19.4 | 80 | 32.2 | 73 | 6.6 | 87 | 0.48 | 59 | 0 |
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| 1906 | 17 | 100 | 31.4 | 82 | 2.5 | 113 | 0.63 | 45 | 0 |
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| 1905 | 20 | 75 | 32.2 | 73 | 7.7 | 75 | 0.23 | 96 | 0 |
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| 1904 | 20.3 | 71 | 34.7 | 46 | 6 | 92 | 0.56 | 51 | 0 |
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| 1903 | 23 | 40 | 37.5 | 25 | 8.5 | 64 | 0.25 | 91 | 0 |
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| 1902 | 18.9 | 86 | 31.4 | 82 | 6.4 | 89 | 0.18 | 102 | 0 |
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| 1901 | 23.7 | 35 | 37.6 | 23 | 9.7 | 53 | 0.16 | 105 | 0 |
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| 1900 | 28.2 | 11 | 42.4 | 5 | 14.1 | 20 | trace | 131 | 0 |
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| 1899 | 21.5 | 58 | 36.8 | 33 | 6.1 | 91 | 0.88 | 22 | 0 |
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| 1898 | 10.6 | 124 | 24 | 119 | -2.9 | 128 | 0.33 | 79 | 0 |
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| 1897 | 15 | 108 | 27.7 | 103 | 2.2 | 116 | 0.23 | 96 | 0 |
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| 1896 | 24.6 | 30 | 37 | 29 | 12.2 | 34 | 0.24 | 93 | 0 |
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| 1895 | 18.4 | 89 | 32.5 | 67 | 4.3 | 101 | 0.68 | 35 | 0 |
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| 1894 | 17.7 | 94 | 32.3 | 70 | 3.1 | 108 | 0.49 | 57 | 0 |
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| 1893 | 26.4 | 21 | 40.3 | 12 | 12.5 | 33 | 0.02 | 127 | 0 |
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| 1892 | 16.8 | 101 | 30.8 | 87 | 2.8 | 110 | 0.75 | 28 | 0 |
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