Every winter in Lewiston, ID from 1882 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 | 40.3 | 2 | 46.8 | 6 | 33.8 | 2 | 4.21 | 36 | 0 |
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| 2025 | 36 | 67 | 42.1 | 81 | 29.9 | 55 | 4.17 | 38 | 0 |
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| 2024 | 38.7 | 17 | 44.8 | 25 | 32.6 | 14 | 4.16 | 39 | 0 |
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| 2023 | 35.6 | 72 | 42.5 | 71 | 28.7 | 80 | 1.92 | 124 | 0 |
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| 2022 | 35.6 | 72 | 42.3 | 75 | 28.8 | 75 | 3.39 | 65 | 0 |
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| 2021 | 37.2 | 41 | 43.4 | 53 | 31 | 28 | 2.88 | 93 | 0 |
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| 2020 | 39.7 | 10 | 46.4 | 8 | 33 | 9 | 5.21 | 17 | 0 |
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| 2019 | 34.7 | 85 | 40.5 | 99 | 29 | 69 | 4.79 | 22 | 1 |
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| 2018 | 36.4 | 60 | 42.5 | 71 | 30.4 | 44 | 4.72 | 24 | 0 |
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| 2017 | 30.4 | 122 | 36.6 | 126 | 24.3 | 118 | 4.37 | 32 | 0 |
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| 2016 | 39.6 | 11 | 46.3 | 10 | 32.8 | 10 | 3.33 | 69 | 0 |
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| 2015 | 39.8 | 6 | 46.4 | 8 | 33.2 | 5 | 4.13 | 40 | 0 |
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| 2014 | 33.6 | 100 | 39.4 | 110 | 27.7 | 90 | 3.15 | 77 | 0 |
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| 2013 | 37.3 | 37 | 43.7 | 47 | 30.9 | 30 | 2.44 | 107 | 0 |
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| 2012 | 36.2 | 65 | 43.6 | 49 | 28.8 | 75 | 2.81 | 97 | 0 |
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| 2011 | 35.8 | 70 | 42.2 | 78 | 29.5 | 62 | 4.75 | 23 | 0 |
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| 2010 | 37.4 | 31 | 44.1 | 37 | 30.8 | 34 | 3.35 | 66 | 0 |
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| 2009 | 34.5 | 90 | 41 | 93 | 28 | 86 | 3.58 | 54 | 0 |
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| 2008 | 36.7 | 57 | 43.2 | 57 | 30.1 | 48 | 1.53 | 129 | 0 |
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| 2007 | 35.3 | 77 | 41.8 | 82 | 28.8 | 75 | 2.18 | 117 | 0 |
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| 2006 | 37.2 | 41 | 44 | 40 | 30.3 | 46 | 2.99 | 88 | 0 |
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| 2005 | 38.3 | 19 | 45.8 | 17 | 30.8 | 34 | 1.36 | 134 | 0 |
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| 2004 | 36.9 | 50 | 43 | 64 | 30.7 | 37 | 3.42 | 64 | 0 |
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| 2003 | 38.7 | 17 | 44.8 | 25 | 32.6 | 14 | 4.37 | 32 | 0 |
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| 2002 | 36.8 | 53 | 43.2 | 57 | 30.5 | 40 | 2.41 | 109 | 0 |
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| 2001 | 34.6 | 86 | 40.4 | 102 | 28.8 | 75 | 2.36 | 111 | 0 |
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| 2000 | 37.9 | 23 | 43.2 | 57 | 32.7 | 12 | 4.25 | 35 | 0 |
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| 1999 | 37.4 | 31 | 43.5 | 51 | 31.4 | 26 | 2.88 | 93 | 0 |
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| 1998 | 37.5 | 29 | 44.1 | 37 | 30.9 | 30 | 2.70 | 100 | 0 |
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| 1997 | 35.3 | 77 | 41.6 | 86 | 29 | 69 | 5.76 | 10 | 0 |
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| 1996 | 34.4 | 92 | 40.6 | 98 | 28.1 | 85 | 4.99 | 20 | 1 |
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| 1995 | 37.1 | 45 | 43.3 | 54 | 30.9 | 30 | 3.03 | 82 | 0 |
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| 1994 | 37.4 | 31 | 43.8 | 45 | 31.1 | 27 | 2.43 | 108 | 0 |
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| 1993 | 30.8 | 119 | 36.9 | 124 | 24.6 | 116 | 2.08 | 119 | 0 |
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| 1992 | 39.1 | 15 | 45.9 | 14 | 32.4 | 18 | 1.85 | 125 | 0 |
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| 1991 | 37.2 | 41 | 44.8 | 25 | 29.7 | 56 | 1.38 | 133 | 0 |
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| 1990 | 39.8 | 6 | 46.3 | 10 | 33.2 | 5 | 1.40 | 132 | 0 |
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| 1989 | 32.5 | 110 | 38.7 | 115 | 26.3 | 102 | 2.47 | 106 | 0 |
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| 1988 | 36 | 67 | 42.8 | 67 | 29.2 | 66 | 1.95 | 123 | 0 |
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| 1987 | 35.5 | 75 | 42.2 | 78 | 28.9 | 74 | 1.53 | 129 | 0 |
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| 1986 | 33.6 | 100 | 39.5 | 108 | 27.7 | 90 | 3.48 | 60 | 0 |
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| 1985 | 30.2 | 123 | 36.5 | 127 | 24 | 120 | 1.59 | 128 | 0 |
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| 1984 | 33.9 | 97 | 41.1 | 91 | 26.6 | 98 | 2.31 | 112 | 0 |
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| 1983 | 39.3 | 13 | 45.9 | 14 | 32.7 | 12 | 3.44 | 62 | 0 |
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| 1982 | 35.1 | 80 | 41.3 | 90 | 29 | 69 | 3.63 | 50 | 0 |
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| 1981 | 39.5 | 12 | 45.9 | 14 | 33.1 | 8 | 2.99 | 88 | 0 |
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| 1980 | 35.9 | 69 | 42.5 | 71 | 29.3 | 65 | 4.26 | 34 | 0 |
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| 1979 | 27 | 132 | 32.6 | 135 | 21.3 | 128 | 3.05 | 80 | 0 |
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| 1978 | 37.5 | 29 | 42.3 | 75 | 32.8 | 10 | 5.49 | 14 | 0 |
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| 1977 | 35.1 | 80 | 41.8 | 82 | 28.3 | 83 | 0.96 | 135 | 0 |
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| 1976 | 37.3 | 37 | 44.2 | 33 | 30.4 | 44 | 3.34 | 68 | 0 |
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| 1975 | 35.6 | 72 | 42.3 | 75 | 29 | 69 | 5.08 | 18 | 0 |
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| 1974 | 36.4 | 60 | 43.3 | 54 | 29.5 | 62 | 5.97 | 8 | 0 |
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| 1973 | 33.2 | 103 | 41 | 93 | 25.5 | 107 | 3.01 | 84 | 0 |
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| 1972 | 34.6 | 86 | 41.5 | 88 | 27.7 | 90 | 3.91 | 42 | 0 |
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| 1971 | 36.3 | 63 | 43.2 | 57 | 29.4 | 64 | 2.54 | 104 | 0 |
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| 1970 | 36.9 | 50 | 42.8 | 67 | 31 | 28 | 5.70 | 11 | 0 |
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| 1969 | 29.6 | 125 | 35.8 | 130 | 23.5 | 124 | 5.87 | 9 | 0 |
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| 1968 | 37 | 49 | 43.9 | 42 | 30.1 | 48 | 3.53 | 57 | 0 |
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| 1967 | 40.2 | 3 | 47.3 | 4 | 33.2 | 5 | 3.27 | 74 | 0 |
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| 1966 | 36.8 | 53 | 43.9 | 42 | 29.6 | 58 | 2.28 | 113 | 0 |
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| 1965 | 34.9 | 82 | 41.8 | 82 | 28 | 86 | 6.67 | 5 | 0 |
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| 1964 | 35.8 | 70 | 42.7 | 69 | 29 | 69 | 2.20 | 115 | 0 |
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| 1963 | 33.6 | 100 | 40.8 | 96 | 26.4 | 100 | 3.35 | 66 | 0 |
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| 1962 | 34.4 | 92 | 41.6 | 86 | 27.2 | 95 | 2.37 | 110 | 0 |
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| 1961 | 36.4 | 60 | 42.6 | 70 | 30.2 | 47 | 3.16 | 76 | 0 |
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| 1960 | 32.5 | 110 | 39.8 | 105 | 25.1 | 111 | 2.06 | 120 | 0 |
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| 1959 | 37.1 | 45 | 43.7 | 47 | 30.5 | 40 | 5.57 | 13 | 0 |
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| 1958 | 40.4 | 1 | 47.5 | 3 | 33.3 | 4 | 3.12 | 78 | 0 |
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| 1957 | 29.8 | 124 | 36.9 | 124 | 22.7 | 126 | 3.19 | 75 | 0 |
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| 1956 | 30.9 | 118 | 37.7 | 122 | 24.2 | 119 | 5.63 | 12 | 0 |
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| 1955 | 32.7 | 106 | 40.7 | 97 | 24.6 | 116 | 1.48 | 131 | 0 |
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| 1954 | 37.4 | 31 | 44.7 | 28 | 30.1 | 48 | 2.20 | 115 | 0 |
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| 1953 | 40 | 5 | 46.7 | 7 | 33.4 | 3 | 4.58 | 26 | 0 |
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| 1952 | 31.9 | 113 | 39.1 | 111 | 24.8 | 113 | 2.01 | 122 | 0 |
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| 1951 | 37.1 | 45 | 44.2 | 33 | 30 | 51 | 2.77 | 99 | 0 |
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| 1950 | 28.4 | 129 | 35.7 | 131 | 21.1 | 129 | 3.71 | 46 | 0 |
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| 1949 | 25.2 | 133 | 32.7 | 134 | 17.7 | 133 | 3.08 | 79 | 0 |
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| 1948 | 34.8 | 84 | 41.7 | 85 | 28 | 86 | 3.61 | 53 | 0 |
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| 1947 | 34.9 | 82 | 42.2 | 78 | 27.6 | 94 | 1.61 | 127 | 0 |
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| 1946 | 36.8 | 53 | 44.9 | 24 | 28.6 | 82 | 3.48 | 60 | 0 |
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| 1945 | 37.3 | 37 | 44 | 40 | 30.6 | 38 | 2.90 | 91 | 0 |
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| 1944 | 35.4 | 76 | 44.4 | 31 | 26.4 | 100 | 2.83 | 96 | 0 |
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| 1943 | 34.5 | 90 | 43.1 | 62 | 25.9 | 105 | 3.81 | 43 | 0 |
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| 1942 | 32.6 | 107 | 40.5 | 99 | 24.7 | 115 | 3.03 | 82 | 0 |
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| 1941 | 37.1 | 45 | 45.5 | 20 | 28.8 | 75 | 3.62 | 52 | 0 |
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| 1940 | 39.8 | 6 | 47 | 5 | 32.5 | 17 | 6.13 | 7 | 0 |
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| 1939 | 37.4 | 31 | 45.2 | 22 | 29.6 | 58 | 2.54 | 104 | 0 |
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| 1938 | 37.6 | 27 | 44.5 | 30 | 30.6 | 38 | 5.25 | 16 | 0 |
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| 1937 | 28.5 | 128 | 37.5 | 123 | 19.5 | 132 | 3.33 | 69 | 0 |
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| 1936 | 30.8 | 119 | 38 | 118 | 23.6 | 123 | 4.39 | 31 | 0 |
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| 1935 | 37.7 | 26 | 46.2 | 12 | 29.2 | 66 | 2.21 | 114 | 0 |
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| 1934 | | | | | | | | | 31 |
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| 1933 | 32.6 | 107 | 39.8 | 105 | 25.3 | 110 | 3.28 | 73 | 0 |
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| 1932 | 34 | 94 | 39.9 | 104 | 28 | 86 | 3.72 | 45 | 0 |
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| 1931 | 36.6 | 58 | 43.2 | 57 | 30 | 51 | 2.64 | 101 | 0 |
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| 1930 | 32.6 | 107 | 39.5 | 108 | 25.8 | 106 | 4.42 | 30 | 0 |
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| 1929 | 27.1 | 131 | 34.2 | 132 | 19.9 | 131 | 3.53 | 57 | 1 |
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| 1928 | 32.9 | 104 | 39.6 | 107 | 26.2 | 103 | 3.80 | 44 | 0 |
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| 1927 | 37.4 | 31 | 43 | 64 | 31.8 | 22 | 3.44 | 62 | 0 |
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| 1926 | 40.2 | 3 | 46.2 | 12 | 34.1 | 1 | 4.58 | 26 | 0 |
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| 1925 | 37.2 | 41 | 43.9 | 42 | 30.5 | 40 | 3.00 | 87 | 0 |
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| 1924 | 37.3 | 37 | 44.6 | 29 | 30 | 51 | 4.45 | 29 | 0 |
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| 1923 | 33.8 | 98 | 40.5 | 99 | 27.1 | 96 | 3.69 | 48 | 0 |
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| 1922 | 31.4 | 116 | 37.8 | 121 | 25 | 112 | 2.56 | 103 | 0 |
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| 1921 | 38.1 | 21 | 44.4 | 31 | 31.7 | 24 | 3.57 | 55 | 0 |
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| 1920 | 30.8 | 119 | 38 | 118 | 23.7 | 122 | 4.54 | 28 | 0 |
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| 1919 | 36.9 | 50 | 44.1 | 37 | 29.6 | 58 | 3.04 | 81 | 0 |
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| 1918 | 39.2 | 14 | 45.8 | 17 | 32.6 | 14 | 7.71 | 2 | 0 |
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| 1917 | 32.8 | 105 | 39.1 | 111 | 26.5 | 99 | 3.63 | 50 | 0 |
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| 1916 | 29.4 | 127 | 36.3 | 128 | 22.6 | 127 | 5.06 | 19 | 0 |
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| 1915 | 34 | 94 | 41.1 | 91 | 26.9 | 97 | 2.02 | 121 | 1 |
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| 1914 | 36.8 | 53 | 43.1 | 62 | 30.5 | 40 | 3.57 | 55 | 0 |
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| 1913 | 31.4 | 116 | 38.8 | 113 | 23.9 | 121 | 4.11 | 41 | 0 |
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| 1912 | 36.1 | 66 | 42.5 | 71 | 29.6 | 58 | 5.42 | 15 | 0 |
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| 1911 | 35.3 | 77 | 41.5 | 88 | 29.1 | 68 | 1.77 | 126 | 0 |
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| 1910 | 32 | 112 | 38 | 118 | 26.1 | 104 | 3.01 | 84 | 0 |
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| 1909 | 34 | 94 | 40.2 | 103 | 27.7 | 90 | 2.63 | 102 | 0 |
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| 1908 | 37.9 | 23 | 45 | 23 | 30.9 | 30 | 2.88 | 93 | 0 |
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| 1907 | 33.7 | 99 | 38.7 | 115 | 28.7 | 80 | 6.85 | 4 | 0 |
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| 1906 | 38 | 22 | 44.2 | 33 | 31.8 | 22 | 2.14 | 118 | 0 |
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| 1905 | 36.3 | 63 | 42.9 | 66 | 29.7 | 56 | 2.79 | 98 | 0 |
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| 1904 | 37.8 | 25 | 43.6 | 49 | 32 | 20 | 3.32 | 71 | 0 |
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| 1903 | 37.6 | 27 | 43.5 | 51 | 31.7 | 24 | 2.96 | 90 | 0 |
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| 1902 | 36.6 | 58 | 43.3 | 54 | 30 | 51 | 4.69 | 25 | 0 |
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| 1901 | 38.9 | 16 | 45.5 | 20 | 32.3 | 19 | 3.31 | 72 | 0 |
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| 1900 | 39.8 | 6 | 47.7 | 2 | 31.9 | 21 | 4.19 | 37 | 0 |
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| 1899 | 31.9 | 113 | 38.3 | 117 | 25.4 | 108 | 2.89 | 92 | 0 |
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| 1898 | | | 44.2 | 33 | | | 3.49 | 59 | 32 |
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| 1897 | 38.3 | 19 | 45.8 | 17 | 30.8 | 34 | 4.83 | 21 | 0 |
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| 1896 | | | 48.3 | 1 | | | 3.70 | 47 | 21 |
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| 1895 | 34.6 | 86 | 43.8 | 45 | 25.4 | 108 | 3.64 | 49 | 0 |
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| 1894 | | | | | | | | | 62 |
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| 1886 | | | | | | | | | 59 |
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| 1885 | 27.2 | 130 | 34.2 | 132 | 20.2 | 130 | 7.34 | 3 | 0 |
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| 1884 | 31.8 | 115 | 38.8 | 113 | 24.8 | 113 | 6.61 | 6 | 0 |
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| 1883 | 29.5 | 126 | 35.9 | 129 | 23 | 125 | 9.26 | 1 | 0 |
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| 1882 | 34.6 | 86 | 41 | 93 | 28.3 | 83 | 3.01 | 84 | 0 |
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