Every January in Harrison, AR 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 | 37.7 | 48 | 48.3 | 55 | 27.1 | 50 | 1.47 | 83 | 0 |
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| 2025 | 33.7 | 95 | 43.1 | 101 | 24.3 | 82 | 2.22 | 59 | 0 |
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| 2024 | 32.3 | 102 | 41.5 | 105 | 23.1 | 94 | 4.92 | 13 | 0 |
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| 2023 | 41.7 | 13 | 51.2 | 28 | 32.2 | 7 | 2.74 | 49 | 0 |
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| 2022 | 34.8 | 83 | 46.6 | 72 | 23 | 95 | 1.68 | 77 | 0 |
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| 2021 | 38.1 | 44 | 46 | 77 | 30.3 | 20 | 3.11 | 44 | 0 |
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| 2020 | 40.5 | 24 | 49.1 | 46 | 31.9 | 11 | 4.40 | 19 | 0 |
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| 2019 | 37.3 | 51 | 45.9 | 81 | 28.8 | 29 | 4.40 | 19 | 0 |
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| 2018 | 34.2 | 90 | 44.9 | 86 | 23.6 | 88 | 2.63 | 52 | 0 |
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| 2017 | 40.9 | 17 | 50.5 | 32 | 31.4 | 14 | 2.18 | 61 | 0 |
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| 2016 | 37 | 55 | 47 | 66 | 27 | 52 | 0.95 | 97 | 0 |
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| 2015 | 37.6 | 49 | 47.7 | 59 | 27.5 | 41 | 1.82 | 71 | 0 |
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| 2014 | 32.7 | 100 | 44.2 | 95 | 21.2 | 102 | 1.03 | 93 | 0 |
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| 2013 | 39.3 | 33 | 50.1 | 38 | 28.5 | 32 | 3.37 | 39 | 0 |
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| 2012 | 42.2 | 12 | 52.3 | 21 | 32 | 10 | 3.26 | 43 | 0 |
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| 2011 | 34.9 | 82 | 44.7 | 87 | 25 | 74 | 0.25 | 116 | 0 |
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| 2010 | 32.9 | 98 | 41.5 | 105 | 24.4 | 80 | 2.83 | 47 | 0 |
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| 2009 | | | | | | | 1.23 | 87 | 4 |
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| 2008 | 36.1 | 67 | 47 | 66 | 25.2 | 71 | 1.09 | 89 | 0 |
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| 2007 | 35.3 | 76 | 44.2 | 95 | 26.5 | 56 | 3.58 | 35 | 0 |
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| 2006 | 46.3 | 1 | 57.3 | 1 | 35.3 | 1 | 1.78 | 74 | 0 |
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| 2005 | 40.6 | 22 | 49.7 | 41 | 31.5 | 13 | 4.64 | 15 | 0 |
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| 2004 | 36.7 | 57 | 46.7 | 69 | 26.7 | 54 | 1.80 | 72 | 0 |
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| 2003 | 34.1 | 91 | 44.5 | 92 | 23.7 | 86 | 0.29 | 115 | 0 |
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| 2002 | 39.5 | 32 | 50.2 | 36 | 28.8 | 29 | 3.84 | 26 | 0 |
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| 2001 | 34.7 | 84 | 43.3 | 99 | 26.2 | 59 | 1.95 | 68 | 0 |
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| 2000 | 38.5 | 43 | 47.3 | 62 | 29.6 | 25 | 2.49 | 56 | 0 |
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| 1999 | 38.8 | 37 | 47.8 | 57 | 29.8 | 23 | 4.43 | 18 | 0 |
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| 1998 | 41.7 | 13 | 49.5 | 43 | 33.9 | 3 | 5.25 | 12 | 0 |
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| 1997 | 35.4 | 74 | 45.4 | 84 | 25.4 | 66 | 0.74 | 103 | 0 |
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| 1996 | 34.1 | 91 | 44 | 98 | 24.3 | 82 | 2.31 | 57 | 0 |
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| 1995 | 37.8 | 47 | 46.9 | 68 | 28.8 | 29 | 4.26 | 22 | 0 |
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| 1994 | 32.6 | 101 | 40.5 | 109 | 24.6 | 76 | 2.67 | 50 | 0 |
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| 1993 | 36.1 | 67 | 44.6 | 89 | 27.5 | 41 | 4.48 | 17 | 0 |
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| 1992 | 39.9 | 29 | 49.6 | 42 | 30.2 | 21 | 0.72 | 106 | 0 |
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| 1991 | 32.9 | 98 | 41.1 | 107 | 24.6 | 76 | 3.67 | 32 | 0 |
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| 1990 | 44.5 | 3 | 55.3 | 5 | 33.6 | 4 | 5.59 | 10 | 0 |
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| 1989 | 43 | 6 | 53.6 | 13 | 32.5 | 6 | 2.01 | 65 | 0 |
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| 1988 | 33.8 | 94 | 43.1 | 101 | 24.5 | 79 | 0.96 | 96 | 0 |
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| 1987 | 36.5 | 63 | 44.6 | 89 | 28.4 | 34 | 2.67 | 50 | 0 |
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| 1986 | 40.4 | 25 | 52.2 | 23 | 29.2 | 27 | 0.52 | 111 | 2 |
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| 1985 | 28 | 106 | 37 | 113 | 19.1 | 106 | 1.22 | 88 | 0 |
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| 1984 | 34 | 93 | 44.7 | 87 | 23.2 | 93 | 0.68 | 109 | 0 |
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| 1983 | 35.8 | 72 | 44.2 | 95 | 27.5 | 41 | 1.09 | 89 | 0 |
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| 1982 | | | 42.7 | 103 | 19.2 | 105 | 6.54 | 5 | 6 |
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| 1981 | 36.1 | 67 | 46.5 | 73 | 25.8 | 61 | 1.33 | 85 | 0 |
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| 1980 | 36 | 70 | 44.3 | 94 | 27.7 | 40 | 0.85 | 101 | 0 |
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| 1979 | 22.1 | 113 | 31.2 | 118 | 13.1 | 115 | 1.96 | 67 | 0 |
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| 1978 | 23.9 | 109 | 31.9 | 117 | 15.9 | 111 | 2.54 | 54 | 0 |
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| 1977 | 23.4 | 110 | 32.8 | 115 | 14 | 113 | 2.10 | 62 | 0 |
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| 1976 | 35.2 | 77 | 46 | 77 | 24.4 | 80 | 0.38 | 113 | 0 |
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| 1975 | 40.3 | 27 | 53.5 | 14 | 27.2 | 47 | 3.35 | 40 | 0 |
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| 1974 | 38.1 | 44 | 48.4 | 53 | 27.9 | 39 | 1.41 | 84 | 0 |
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| 1973 | 36.4 | 64 | 46.7 | 69 | 26.3 | 58 | 3.80 | 28 | 1 |
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| 1972 | 37.6 | 49 | 50.1 | 38 | 25.1 | 72 | 0.91 | 99 | 1 |
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| 1971 | 37.3 | 51 | 49.4 | 44 | 25.3 | 70 | 2.22 | 59 | 0 |
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| 1970 | 29.6 | 104 | 40.8 | 108 | 18.1 | 108 | 1.74 | 75 | 1 |
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| 1969 | 35.2 | 77 | 45.6 | 82 | 25.4 | 66 | 5.68 | 8 | 1 |
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| 1968 | 34.7 | 84 | 44.6 | 89 | 24.9 | 75 | 2.28 | 58 | 0 |
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| 1967 | 40.7 | 21 | 53.5 | 14 | 28 | 38 | 1.24 | 86 | 0 |
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| 1966 | 32.3 | 102 | 42.4 | 104 | 22.3 | 100 | 5.30 | 11 | 0 |
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| 1965 | 40.6 | 22 | 52.6 | 19 | 29 | 28 | 1.83 | 70 | 1 |
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| 1964 | 40.8 | 18 | 54.9 | 7 | 26.8 | 53 | 0.92 | 98 | 0 |
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| 1963 | | | 44.4 | 93 | 17.5 | 109 | 0.54 | 110 | 4 |
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| 1962 | 34.6 | 87 | 46.7 | 69 | 22.5 | 98 | 3.40 | 37 | 0 |
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| 1961 | 34.7 | 84 | 48.4 | 53 | 21 | 103 | 0.36 | 114 | 0 |
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| 1960 | 38.6 | 39 | 49 | 47 | 28.1 | 37 | 1.80 | 72 | 1 |
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| 1959 | 36.2 | 66 | 48.7 | 51 | 23.7 | 86 | 0.89 | 100 | 0 |
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| 1958 | 36.7 | 57 | 48.8 | 48 | 24.6 | 76 | 0.81 | 102 | 0 |
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| 1957 | 35 | 79 | 46.4 | 75 | 23.6 | 88 | 2.59 | 53 | 0 |
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| 1956 | 33.4 | 96 | 46.2 | 76 | 20.6 | 104 | 3.29 | 41 | 0 |
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| 1955 | 38.9 | 36 | 49.4 | 44 | 28.4 | 34 | 1.09 | 89 | 0 |
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| 1954 | 38.6 | 39 | 50.8 | 31 | 26.4 | 57 | 2.09 | 63 | 0 |
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| 1953 | 42.8 | 9 | 55 | 6 | 30.5 | 18 | | | 3 |
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| 1952 | 43.7 | 4 | 55.4 | 4 | 32.1 | 8 | 2.05 | 64 | 0 |
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| 1951 | 37.3 | 51 | 51.7 | 24 | 23 | 95 | 0.73 | 105 | 3 |
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| 1950 | 42.9 | 8 | 56.1 | 2 | 29.7 | 24 | 6.96 | 4 | 0 |
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| 1949 | 36.6 | 61 | 46 | 77 | 27.2 | 47 | 8.53 | 3 | 2 |
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| 1948 | | | | | | | | | 4 |
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| 1947 | 39.9 | 29 | 50.2 | 36 | 29.6 | 25 | 0.69 | 108 | 1 |
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| 1946 | 38.6 | 39 | 48.8 | 48 | 28.5 | 32 | 5.62 | 9 | 1 |
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| 1945 | 36.6 | 61 | 47.4 | 61 | 25.9 | 60 | 1.06 | 92 | 0 |
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| 1944 | | | | | | | | | 10 |
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| 1943 | 39.3 | 33 | 53.2 | 18 | 25.5 | 64 | 0.18 | 117 | 0 |
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| 1942 | 35.6 | 73 | 47.3 | 62 | 23.9 | 84 | 1.48 | 81 | 0 |
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| 1941 | 40.4 | 25 | 50.3 | 34 | 30.5 | 18 | 3.92 | 24 | 0 |
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| 1940 | 23 | 111 | 32.4 | 116 | 13.7 | 114 | 0.71 | 107 | 1 |
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| 1939 | 43.2 | 5 | 53.8 | 12 | 32.6 | 5 | 3.70 | 31 | 0 |
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| 1938 | 37.2 | 54 | 47.8 | 57 | 26.7 | 54 | 4.37 | 21 | 0 |
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| 1937 | | | 45.1 | 85 | | | 8.82 | 2 | 4 |
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| 1936 | 33.4 | 96 | 43.2 | 100 | 23.6 | 88 | 0.44 | 112 | 0 |
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| 1935 | 40.8 | 18 | 51.4 | 25 | 30.2 | 21 | 2.83 | 47 | 0 |
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| 1934 | 41 | 15 | 50.9 | 30 | 30.7 | 17 | 1.65 | 78 | 1 |
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| 1933 | 45.2 | 2 | 56 | 3 | 34.3 | 2 | 2.86 | 46 | 0 |
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| 1932 | 42.7 | 10 | 53.4 | 16 | 32.1 | 8 | 6.03 | 6 | 0 |
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| 1931 | 36.7 | 57 | 51.3 | 27 | 22.5 | 98 | trace | 118 | 1 |
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| 1930 | 28.2 | 105 | 38.7 | 111 | 17.2 | 110 | 3.40 | 37 | 1 |
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| 1929 | | | | | | | 5.72 | 7 | 6 |
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| 1928 | 41 | 15 | 54.4 | 8 | 27.5 | 41 | 3.58 | 35 | 0 |
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| 1927 | 38.8 | 37 | 50.3 | 34 | 27.4 | 45 | 3.76 | 30 | 0 |
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| 1926 | 37 | 55 | 48.6 | 52 | 25.4 | 66 | | | 1 |
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| 1922 | | | | | | | | | 9 |
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| 1920 | | | 48.8 | 48 | 23.6 | 88 | 4.54 | 16 | 4 |
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| 1919 | 39.7 | 31 | 51.4 | 25 | 27.4 | 45 | | | 1 |
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| 1918 | 23 | 111 | 34.4 | 114 | 11.6 | 117 | 3.62 | 34 | 0 |
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| 1917 | 40.8 | 18 | 53.3 | 17 | 28.3 | 36 | 1.65 | 78 | 0 |
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| 1916 | 36.3 | 65 | 47.3 | 62 | 25.4 | 66 | 9.42 | 1 | 0 |
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| 1915 | 35.4 | 74 | 45.6 | 82 | 25.1 | 72 | 2.87 | 45 | 0 |
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| 1914 | 43 | 6 | 54.2 | 10 | 31.9 | 11 | 1.57 | 80 | 0 |
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| 1913 | 38.6 | 39 | 50.1 | 38 | 27.1 | 50 | 4.77 | 14 | 0 |
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| 1912 | 25.6 | 108 | 38.8 | 110 | 12.5 | 116 | 1.71 | 76 | 0 |
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| 1911 | 40.1 | 28 | 52.4 | 20 | 27.2 | 47 | 1.48 | 81 | 1 |
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| 1910 | 35.9 | 71 | 48.3 | 55 | 23.3 | 92 | 0.74 | 103 | 1 |
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| 1909 | 38 | 46 | 50.5 | 32 | 25.6 | 63 | 2.51 | 55 | 0 |
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| 1908 | 34.6 | 87 | 46.5 | 73 | 22.7 | 97 | 3.86 | 25 | 0 |
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| 1907 | | | 54.3 | 9 | | | 4.23 | 23 | 5 |
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| 1906 | 39.2 | 35 | 52.3 | 21 | 25.5 | 64 | 3.65 | 33 | 1 |
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| 1905 | 27 | 107 | 38.7 | 111 | 15.2 | 112 | 3.27 | 42 | 0 |
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| 1904 | 34.4 | 89 | 47.1 | 65 | 21.4 | 101 | 3.82 | 27 | 1 |
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| 1903 | 36.7 | 57 | 47.7 | 59 | 25.8 | 61 | 2.00 | 66 | 0 |
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| 1902 | 35 | 79 | 46 | 77 | 23.9 | 84 | 1.02 | 94 | 0 |
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| 1901 | | | | | 31.1 | 15 | 1.00 | 95 | 4 |
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| 1900 | 42.6 | 11 | 54.2 | 10 | 30.9 | 16 | 1.93 | 69 | 0 |
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| 1893 | 35 | 79 | 51 | 29 | 19 | 107 | | | 0 |
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| 1892 | | | | | | | 3.80 | 28 | 4 |
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