Every December in Mansfield, OH from 1899 to 2025, 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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| 2025 | 27.6 | 81 | 36.2 | 69 | 19 | 90 | 2.90 | 56 | 0 |
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| 2024 | 33.5 | 28 | 40.1 | 31 | 27 | 24 | 4.60 | 10 | 0 |
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| 2023 | 39.6 | 2 | 45.5 | 7 | 33.7 | 2 | 2.39 | 76 | 0 |
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| 2022 | 32.6 | 35 | 38.9 | 44 | 26.2 | 32 | 1.32 | 106 | 0 |
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| 2021 | 39 | 4 | 47.1 | 2 | 30.8 | 6 | 6.43 | 3 | 0 |
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| 2020 | 33.4 | 29 | 39.4 | 37 | 27.4 | 22 | 1.92 | 91 | 0 |
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| 2019 | 36.5 | 13 | 44.6 | 8 | 28.5 | 17 | 3.57 | 27 | 0 |
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| 2018 | 34 | 22 | 40.7 | 27 | 27.2 | 23 | 3.76 | 23 | 0 |
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| 2017 | 27.3 | 84 | 34.6 | 83 | 19.9 | 82 | 1.85 | 95 | 0 |
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| 2016 | 29 | 69 | 34.9 | 79 | 23.1 | 62 | 3.14 | 43 | 0 |
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| 2015 | 42.8 | 1 | 50.5 | 1 | 35.1 | 1 | 4.16 | 18 | 0 |
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| 2014 | 33.7 | 26 | 39.7 | 36 | 27.6 | 20 | 1.86 | 94 | 0 |
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| 2013 | 30.3 | 58 | 37.1 | 58 | 23.5 | 56 | 4.18 | 16 | 0 |
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| 2012 | 36.6 | 12 | 42.8 | 16 | 30.4 | 7 | 3.86 | 22 | 0 |
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| 2011 | 35.8 | 15 | 42.1 | 18 | 29.6 | 12 | 5.09 | 5 | 0 |
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| 2010 | 23.3 | 93 | 28.4 | 103 | 18.2 | 94 | 1.03 | 111 | 0 |
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| 2009 | 29 | 69 | 35.4 | 72 | 22.7 | 69 | 3.12 | 45 | 0 |
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| 2008 | 29 | 69 | 37.8 | 53 | 20.3 | 80 | 4.86 | 6 | 0 |
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| 2007 | 31.1 | 50 | 37 | 59 | 25.2 | 41 | 4.61 | 9 | 0 |
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| 2006 | 37.1 | 9 | 44.3 | 10 | 29.9 | 11 | 3.05 | 49 | 0 |
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| 2005 | 25.5 | 92 | 31.4 | 93 | 19.7 | 86 | 1.35 | 103 | 0 |
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| 2004 | 28.7 | 75 | 36.2 | 69 | 21.3 | 77 | 3.01 | 50 | 0 |
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| 2003 | 30.8 | 54 | 36.4 | 67 | 25.2 | 41 | 3.27 | 36 | 0 |
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| 2002 | 28.6 | 76 | 34.7 | 81 | 22.5 | 71 | 2.74 | 63 | 0 |
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| 2001 | 35.1 | 16 | 41.5 | 22 | 28.6 | 16 | 2.52 | 72 | 0 |
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| 2000 | 19.7 | 105 | 27.1 | 104 | 12.4 | 105 | 3.12 | 45 | 0 |
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| 1999 | 31.4 | 48 | 38.8 | 46 | 24.1 | 51 | 2.70 | 65 | 0 |
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| 1998 | 34.9 | 19 | 42.8 | 16 | 27 | 24 | 1.55 | 99 | 0 |
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| 1997 | 31.2 | 49 | 36.5 | 65 | 26 | 36 | 2.27 | 83 | 0 |
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| 1996 | 33.4 | 29 | 40.5 | 28 | 26.2 | 32 | 4.27 | 14 | 0 |
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| 1995 | 25.7 | 91 | 32.7 | 90 | 18.7 | 92 | 2.07 | 86 | 0 |
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| 1994 | 36.2 | 14 | 43.1 | 13 | 29.2 | 13 | 4.01 | 21 | 0 |
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| 1993 | 29.4 | 66 | 34.7 | 81 | 24.1 | 51 | 2.53 | 71 | 0 |
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| 1992 | 32.2 | 41 | 37.9 | 51 | 26.6 | 28 | 2.35 | 79 | 0 |
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| 1991 | 32.5 | 36 | 39.9 | 33 | 25.1 | 44 | 2.78 | 61 | 0 |
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| 1990 | 34.7 | 20 | 42.9 | 15 | 26.5 | 29 | 11.19 | 1 | 0 |
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| 1989 | 17 | 106 | 24.4 | 106 | 9.6 | 107 | 2.06 | 87 | 0 |
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| 1988 | 29 | 69 | 37 | 59 | 21.1 | 78 | 2.44 | 74 | 0 |
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| 1987 | 32.8 | 33 | 38.7 | 47 | 26.9 | 26 | 3.01 | 50 | 0 |
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| 1986 | 31.1 | 50 | 36.4 | 67 | 25.9 | 37 | 3.71 | 24 | 0 |
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| 1985 | 23.1 | 95 | 29.9 | 99 | 16.3 | 97 | 3.17 | 39 | 0 |
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| 1984 | 38.2 | 6 | 46.2 | 3 | 30.2 | 9 | 4.41 | 13 | 0 |
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| 1983 | 22.3 | 100 | 28.7 | 102 | 15.9 | 98 | 3.37 | 34 | 0 |
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| 1982 | 39.5 | 3 | 46.2 | 3 | 32.7 | 3 | 4.68 | 8 | 0 |
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| 1981 | 28.5 | 77 | 33.8 | 86 | 23.1 | 62 | 3.50 | 31 | 0 |
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| 1980 | 30.3 | 58 | 37.7 | 56 | 23 | 65 | 2.15 | 85 | 0 |
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| 1979 | 31.9 | 44 | 39.2 | 39 | 24.6 | 48 | 2.28 | 81 | 0 |
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| 1978 | 31.1 | 50 | 38.7 | 47 | 23.5 | 56 | 4.78 | 7 | 0 |
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| 1977 | 27.4 | 82 | 35.2 | 73 | 19.6 | 87 | 4.15 | 19 | 0 |
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| 1976 | 20.6 | 102 | 29.9 | 99 | 11.4 | 106 | 0.74 | 114 | 0 |
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| 1975 | 29.9 | 62 | 36.5 | 65 | 23.3 | 60 | 2.92 | 53 | 0 |
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| 1974 | 30.1 | 61 | 35.1 | 75 | 25.2 | 41 | 2.64 | 69 | 0 |
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| 1973 | 32.7 | 34 | 39.3 | 38 | 26.1 | 34 | 2.85 | 58 | 0 |
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| 1972 | 33.6 | 27 | 40.3 | 29 | 26.9 | 26 | 2.79 | 60 | 0 |
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| 1971 | 37.6 | 7 | 46.1 | 5 | 29.1 | 15 | 3.42 | 32 | 0 |
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| 1970 | 32.3 | 40 | 40 | 32 | 24.6 | 48 | 2.39 | 76 | 0 |
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| 1969 | 25.9 | 90 | 32 | 92 | 19.9 | 82 | 1.55 | 99 | 0 |
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| 1968 | 29.7 | 63 | 36.7 | 62 | 22.7 | 69 | 3.17 | 39 | 0 |
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| 1967 | 33.1 | 31 | 39.9 | 33 | 26.3 | 31 | 2.76 | 62 | 0 |
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| 1966 | 29 | 69 | 35.2 | 73 | 22.8 | 66 | 2.57 | 70 | 0 |
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| 1965 | 35.1 | 16 | 41.1 | 26 | 29.2 | 13 | 1.88 | 93 | 0 |
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| 1964 | 30.6 | 57 | 37.8 | 53 | 23.4 | 58 | 2.88 | 57 | 0 |
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| 1963 | 19.9 | 103 | 26.4 | 105 | 13.4 | 103 | 0.74 | 114 | 0 |
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| 1962 | 23.2 | 94 | 30.9 | 95 | 15.4 | 100 | 1.54 | 101 | 0 |
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| 1961 | 27.7 | 80 | 35 | 78 | 20.4 | 79 | 2.38 | 78 | 0 |
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| 1960 | 22.9 | 97 | 30.6 | 96 | 15.2 | 101 | 1.10 | 109 | 0 |
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| 1959 | 34 | 22 | 39.8 | 35 | 28.2 | 18 | 2.46 | 73 | 0 |
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| 1958 | 19.8 | 104 | 30.5 | 97 | 9 | 108 | 0.43 | 116 | 0 |
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| 1957 | 32.5 | 36 | 41.3 | 25 | 23.6 | 54 | 4.48 | 11 | 0 |
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| 1956 | 36.7 | 11 | 43.4 | 11 | 30 | 10 | 2.97 | 52 | 0 |
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| 1955 | 26.6 | 88 | 33.7 | 88 | 19.6 | 87 | 0.25 | 117 | 0 |
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| 1954 | 29.5 | 65 | 35.1 | 75 | 24 | 53 | 2.05 | 88 | 0 |
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| 1953 | 31.9 | 44 | 39 | 42 | 24.8 | 47 | 1.90 | 92 | 0 |
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| 1952 | 32.5 | 36 | 37.6 | 57 | 27.5 | 21 | 2.72 | 64 | 0 |
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| 1951 | 29.1 | 68 | 36.6 | 63 | 21.5 | 75 | 5.73 | 4 | 0 |
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| 1950 | 22.9 | 97 | 30 | 98 | 15.8 | 99 | 3.08 | 48 | 0 |
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| 1949 | 31.9 | 44 | 40.2 | 30 | 23.6 | 54 | 4.12 | 20 | 0 |
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| 1948 | 32 | 43 | 39.1 | 40 | 24.9 | 46 | 3.27 | 36 | 0 |
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| 1947 | 29.2 | 67 | 37 | 59 | 21.5 | 75 | 1.07 | 110 | 0 |
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| 1946 | 33.1 | 31 | 42.1 | 18 | 24.2 | 50 | 2.92 | 53 | 2 |
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| 1945 | 23 | 96 | 29.4 | 101 | 16.5 | 96 | 1.34 | 104 | 0 |
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| 1944 | 22.9 | 97 | 32.3 | 91 | 14 | 102 | | | 3 |
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| 1943 | 28.4 | 78 | 37.8 | 53 | 19.1 | 89 | 0.76 | 113 | 2 |
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| 1942 | 26 | 89 | 33.2 | 89 | 18.7 | 92 | 3.66 | 25 | 0 |
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| 1941 | 35.1 | 16 | 42 | 20 | 27.9 | 19 | 1.47 | 102 | 1 |
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| 1940 | 34 | 22 | 41.5 | 22 | 26.5 | 29 | 3.37 | 34 | 0 |
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| 1939 | 32.2 | 41 | 38.9 | 44 | 25.5 | 39 | 1.33 | 105 | 0 |
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| 1938 | | | | | 23.1 | 62 | 1.61 | 98 | 5 |
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| 1937 | 26.9 | 86 | 33.9 | 85 | 19.9 | 82 | 2.92 | 53 | 0 |
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| 1936 | 34.5 | 21 | 43.3 | 12 | 25.8 | 38 | 2.42 | 75 | 0 |
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| 1935 | | | | | 17.2 | 95 | 2.67 | 68 | 5 |
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| 1934 | 27.8 | 79 | 34.3 | 84 | 21.7 | 74 | 1.93 | 90 | 1 |
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| 1933 | 32.4 | 39 | 41.4 | 24 | 23.4 | 58 | 1.79 | 96 | 0 |
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| 1932 | 30.8 | 54 | 39.1 | 40 | 22.8 | 66 | 3.57 | 27 | 1 |
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| 1931 | 37 | 10 | 43 | 14 | 30.9 | 5 | 3.62 | 26 | 0 |
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| 1930 | 29 | 69 | 35.1 | 75 | 23.2 | 61 | 1.21 | 108 | 2 |
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| 1929 | 29.7 | 63 | 36.6 | 63 | 22.8 | 66 | 4.18 | 16 | 0 |
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| 1928 | 34 | 22 | 42 | 20 | 26.1 | 34 | 2.28 | 81 | 0 |
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| 1927 | 30.8 | 54 | 39 | 42 | 22.5 | 71 | 4.42 | 12 | 0 |
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| 1926 | 26.9 | 86 | 33.8 | 86 | 20.2 | 81 | 1.98 | 89 | 1 |
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| 1925 | 27.4 | 82 | 34.8 | 80 | 19.9 | 82 | 0.96 | 112 | 2 |
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| 1924 | | | | | | | 4.20 | 15 | 31 |
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| 1923 | 38.5 | 5 | 45.6 | 6 | 31.6 | 4 | 6.46 | 2 | 1 |
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| 1922 | 30.3 | 58 | 38.7 | 47 | 22.5 | 71 | 3.52 | 30 | 1 |
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| 1921 | 31.7 | 47 | 38.2 | 50 | 25.4 | 40 | 2.31 | 80 | 2 |
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| 1920 | | | | | | | 2.68 | 66 | 31 |
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| 1919 | 31.1 | 50 | 37.9 | 51 | 25.1 | 44 | 2.68 | 66 | 3 |
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| 1918 | 37.3 | 8 | 44.4 | 9 | 30.4 | 7 | 3.14 | 43 | 1 |
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| 1917 | 21.8 | 101 | 31 | 94 | 12.7 | 104 | 1.24 | 107 | 0 |
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| 1916 | 27.2 | 85 | 35.5 | 71 | 18.9 | 91 | 2.80 | 59 | 0 |
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| 1906 | | | | | | | 3.25 | 38 | 31 |
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| 1905 | | | | | | | 2.20 | 84 | 31 |
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| 1904 | | | | | | | 3.16 | 41 | 31 |
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| 1903 | | | | | | | 3.16 | 41 | 31 |
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| 1902 | | | | | | | 3.56 | 29 | 31 |
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| 1901 | | | | | | | 3.10 | 47 | 31 |
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| 1900 | | | | | | | 1.62 | 97 | 31 |
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| 1899 | | | | | | | 3.39 | 33 | 31 |
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