Every January in South Bend, IN from 1894 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 | 21.5 | 91 | 28.8 | 98 | 14.3 | 89 | 2.02 | 70 | 0 |
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| 2025 | 22.8 | 82 | 30 | 85 | 15.7 | 78 | 1.58 | 93 | 0 |
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| 2024 | 26.7 | 47 | 31.4 | 72 | 22.1 | 27 | 4.53 | 10 | 0 |
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| 2023 | 33.9 | 5 | 39.1 | 8 | 28.7 | 2 | 2.41 | 53 | 0 |
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| 2022 | 21.1 | 94 | 28.9 | 97 | 13.3 | 97 | 1.13 | 114 | 0 |
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| 2021 | 28.8 | 33 | 33.9 | 49 | 23.8 | 15 | 2.33 | 58 | 0 |
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| 2020 | 32.1 | 8 | 37.9 | 15 | 26.2 | 7 | 4.82 | 6 | 0 |
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| 2019 | 21 | 96 | 28.2 | 100 | 13.7 | 95 | 1.78 | 80 | 0 |
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| 2018 | 23.7 | 75 | 31 | 79 | 16.5 | 75 | 1.93 | 73 | 0 |
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| 2017 | 29.7 | 20 | 35.4 | 30 | 24 | 13 | 3.34 | 28 | 0 |
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| 2016 | 24.7 | 62 | 32.3 | 63 | 17.1 | 67 | 1.60 | 92 | 0 |
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| 2015 | 22.5 | 84 | 30.1 | 84 | 14.9 | 87 | 1.92 | 74 | 0 |
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| 2014 | 16.3 | 116 | 25.6 | 115 | 7.8 | 120 | 3.12 | 32 | 2 |
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| 2013 | 27.7 | 39 | 35.1 | 34 | 20.3 | 40 | 5.00 | 5 | 0 |
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| 2012 | 29.4 | 23 | 37 | 18 | 21.8 | 34 | 2.97 | 35 | 0 |
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| 2011 | 21.2 | 93 | 27.8 | 103 | 14.6 | 88 | 2.16 | 66 | 0 |
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| 2010 | 23 | 80 | 29 | 96 | 16.9 | 69 | 1.22 | 110 | 0 |
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| 2009 | 15.6 | 118 | 24.2 | 122 | 7 | 121 | 1.57 | 95 | 0 |
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| 2008 | 24.7 | 62 | 32.8 | 58 | 16.6 | 73 | 5.34 | 2 | 0 |
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| 2007 | 29 | 28 | 34.4 | 44 | 23.6 | 17 | 3.50 | 24 | 0 |
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| 2006 | 35.8 | 1 | 41.7 | 3 | 30 | 1 | 2.87 | 39 | 0 |
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| 2005 | 23.9 | 72 | 31.1 | 78 | 16.7 | 72 | 5.10 | 4 | 0 |
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| 2004 | 21.1 | 94 | 27.8 | 103 | 14.3 | 89 | 1.56 | 97 | 0 |
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| 2003 | 20.3 | 99 | 26.8 | 108 | 13.8 | 94 | 1.21 | 111 | 0 |
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| 2002 | 32.6 | 7 | 39.2 | 7 | 26.1 | 8 | 2.48 | 49 | 0 |
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| 2001 | 24.6 | 66 | 31.3 | 73 | 18 | 57 | 0.83 | 122 | 0 |
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| 2000 | 25.5 | 56 | 33.1 | 53 | 17.9 | 58 | 2.57 | 46 | 0 |
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| 1999 | 22.7 | 83 | 30.4 | 81 | 15 | 86 | 3.06 | 34 | 0 |
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| 1998 | 31.6 | 10 | 36.6 | 22 | 26.6 | 6 | 3.76 | 19 | 0 |
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| 1997 | 20.6 | 98 | 28.5 | 99 | 12.7 | 101 | 2.63 | 42 | 0 |
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| 1996 | 24.1 | 69 | 31.7 | 69 | 16.5 | 75 | 1.66 | 84 | 0 |
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| 1995 | 25.3 | 57 | 32 | 67 | 18.5 | 53 | 2.46 | 50 | 0 |
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| 1994 | 16.2 | 117 | 24.1 | 123 | 8.4 | 118 | 2.46 | 50 | 0 |
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| 1993 | 28.3 | 35 | 34.5 | 41 | 22 | 29 | 3.35 | 27 | 0 |
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| 1992 | 29.1 | 27 | 34.9 | 37 | 23.3 | 19 | 1.64 | 85 | 0 |
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| 1991 | 24.1 | 69 | 30.4 | 81 | 17.9 | 58 | 1.64 | 85 | 0 |
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| 1990 | 34 | 4 | 41 | 4 | 27 | 4 | 2.36 | 57 | 0 |
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| 1989 | 33.4 | 6 | 41 | 4 | 25.7 | 9 | 1.58 | 93 | 0 |
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| 1988 | 21.3 | 92 | 29.4 | 91 | 13.1 | 98 | 2.21 | 62 | 0 |
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| 1987 | 25.3 | 57 | 31.6 | 70 | 18.9 | 50 | 2.31 | 59 | 0 |
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| 1986 | 25.7 | 53 | 32.6 | 59 | 18.9 | 50 | 1.24 | 109 | 0 |
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| 1985 | 19.6 | 105 | 26.3 | 111 | 12.9 | 99 | 2.58 | 44 | 0 |
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| 1984 | 18.5 | 111 | 25.8 | 114 | 11.1 | 111 | 0.86 | 121 | 0 |
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| 1983 | 29.3 | 25 | 34.5 | 41 | 24.1 | 12 | 0.77 | 123 | 0 |
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| 1982 | 15.6 | 118 | 24.4 | 121 | 6.8 | 122 | 2.95 | 36 | 0 |
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| 1981 | 23.4 | 79 | 31.6 | 70 | 15.1 | 85 | 0.68 | 125 | 0 |
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| 1980 | 27 | 45 | 33.8 | 50 | 20.3 | 40 | 1.52 | 100 | 0 |
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| 1979 | 17.9 | 113 | 24.5 | 120 | 11.2 | 110 | 3.22 | 31 | 0 |
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| 1978 | 18.4 | 112 | 24.8 | 117 | 12.1 | 103 | 4.03 | 16 | 0 |
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| 1977 | 12.2 | 122 | 20.2 | 126 | 4.3 | 125 | 1.63 | 88 | 0 |
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| 1976 | 21.6 | 89 | 29.7 | 88 | 13.5 | 96 | 2.21 | 62 | 0 |
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| 1975 | 30 | 17 | 36.3 | 25 | 23.6 | 17 | 4.58 | 9 | 0 |
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| 1974 | 27.9 | 38 | 35.1 | 34 | 20.6 | 39 | 3.24 | 30 | 0 |
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| 1973 | 29.8 | 19 | 36.5 | 24 | 23.2 | 20 | 1.64 | 85 | 0 |
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| 1972 | 23.9 | 72 | 31.2 | 75 | 16.6 | 73 | 1.82 | 76 | 0 |
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| 1971 | 20 | 102 | 27.9 | 101 | 12 | 104 | 1.55 | 98 | 0 |
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| 1970 | 16.8 | 114 | 24.6 | 119 | 9 | 117 | 1.34 | 106 | 0 |
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| 1969 | 22.2 | 85 | 29.3 | 92 | 15.2 | 82 | 3.61 | 21 | 0 |
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| 1968 | 22.2 | 85 | 29.2 | 95 | 15.3 | 80 | 2.06 | 68 | 0 |
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| 1967 | 29 | 28 | 35.4 | 30 | 22.6 | 25 | 3.56 | 22 | 0 |
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| 1966 | 20.3 | 99 | 27.8 | 103 | 12.8 | 100 | 1.54 | 99 | 0 |
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| 1965 | 24.7 | 62 | 32.5 | 60 | 16.9 | 69 | 4.74 | 7 | 0 |
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| 1964 | 29.3 | 25 | 36.6 | 22 | 21.9 | 32 | 1.57 | 95 | 0 |
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| 1963 | 13.3 | 121 | 20.8 | 125 | 5.8 | 124 | 1.28 | 107 | 0 |
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| 1962 | 19.1 | 107 | 26.5 | 109 | 11.7 | 108 | 3.36 | 26 | 0 |
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| 1961 | 21.7 | 88 | 29.5 | 89 | 14 | 92 | 0.95 | 118 | 0 |
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| 1960 | 27.3 | 42 | 33.1 | 53 | 21.5 | 36 | 4.23 | 15 | 0 |
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| 1959 | 18.6 | 110 | 27.5 | 106 | 9.7 | 115 | 5.28 | 3 | 0 |
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| 1958 | 24.7 | 62 | 31.2 | 75 | 18.1 | 54 | 1.48 | 102 | 0 |
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| 1957 | 19.4 | 106 | 26.9 | 107 | 11.8 | 106 | 2.52 | 47 | 0 |
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| 1956 | 25.6 | 54 | 33.5 | 51 | 17.6 | 62 | 1.05 | 116 | 0 |
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| 1955 | 23.9 | 72 | 31.2 | 75 | 16.5 | 75 | 2.20 | 64 | 0 |
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| 1954 | 26.6 | 48 | 34 | 48 | 19.1 | 49 | 1.63 | 88 | 0 |
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| 1953 | 28.9 | 32 | 35 | 36 | 22.8 | 24 | 2.39 | 55 | 0 |
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| 1952 | 27.6 | 40 | 35.7 | 29 | 19.6 | 45 | 2.08 | 67 | 0 |
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| 1951 | 25.8 | 52 | 32.9 | 56 | 18.7 | 52 | 2.17 | 65 | 0 |
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| 1950 | 31.1 | 12 | 40.4 | 6 | 21.9 | 32 | 4.62 | 8 | 0 |
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| 1949 | 30 | 17 | 38 | 13 | 22 | 29 | 3.96 | 17 | 0 |
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| 1948 | 16.7 | 115 | 25.5 | 116 | 7.9 | 119 | 1.91 | 75 | 0 |
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| 1947 | 27.2 | 43 | 35.3 | 32 | 19.2 | 48 | 2.61 | 43 | 0 |
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| 1946 | 26.4 | 49 | 34.6 | 40 | 18.1 | 54 | 2.05 | 69 | 0 |
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| 1945 | 19 | 109 | 26.1 | 112 | 11.9 | 105 | 0.44 | 127 | 0 |
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| 1944 | 30.6 | 15 | 38.1 | 11 | 23 | 21 | 0.96 | 117 | 0 |
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| 1943 | 20.8 | 97 | 29.8 | 86 | 11.8 | 106 | 1.61 | 91 | 0 |
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| 1942 | 24.2 | 68 | 31.3 | 73 | 17.1 | 67 | 2.31 | 59 | 0 |
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| 1941 | 26.4 | 49 | 32.4 | 61 | 20.3 | 40 | 1.72 | 81 | 0 |
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| 1938 | 25.2 | 59 | 32.9 | 56 | 17.5 | 66 | 1.80 | 79 | 0 |
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| 1937 | 28.1 | 36 | 36.8 | 20 | 19.4 | 47 | 2.70 | 41 | 0 |
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| 1936 | 19.1 | 107 | 26.5 | 109 | 11.7 | 108 | 1.14 | 113 | 0 |
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| 1935 | 27.2 | 43 | 34.4 | 44 | 20 | 44 | 2.58 | 44 | 0 |
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| 1934 | 31.4 | 11 | 39 | 10 | 23.8 | 15 | 1.26 | 108 | 0 |
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| 1933 | 34.9 | 2 | 42.7 | 1 | 27 | 4 | 2.00 | 72 | 0 |
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| 1932 | 34.5 | 3 | 42.1 | 2 | 27.5 | 3 | 2.40 | 54 | 1 |
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| 1931 | 30.4 | 16 | 36.8 | 20 | 23.9 | 14 | 0.55 | 126 | 0 |
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| 1930 | 20.2 | 101 | 27.9 | 101 | 12.4 | 102 | 4.42 | 13 | 0 |
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| 1929 | 19.7 | 104 | 29.5 | 89 | 9.9 | 114 | 4.37 | 14 | 0 |
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| 1928 | 25.6 | 54 | 33.3 | 52 | 17.8 | 60 | 1.51 | 101 | 0 |
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| 1927 | 24.1 | 69 | 30.6 | 80 | 17.6 | 62 | 1.71 | 82 | 0 |
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| 1926 | 24.8 | 61 | 33.1 | 53 | 16.9 | 69 | 1.07 | 115 | 1 |
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| 1925 | 22 | 87 | 29.8 | 86 | 14.2 | 91 | 0.43 | 128 | 0 |
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| 1924 | 19.8 | 103 | 29.3 | 92 | 10.4 | 112 | 1.67 | 83 | 0 |
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| 1923 | 28.7 | 34 | 34.5 | 41 | 22.9 | 23 | 0.90 | 119 | 0 |
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| 1922 | | | | | | | 1.48 | 102 | 20 |
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| 1921 | 31.9 | 9 | 38.1 | 11 | 25.6 | 10 | 1.62 | 90 | 0 |
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| 1920 | | | 24.1 | 123 | 10.4 | 112 | 1.81 | 77 | 4 |
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| 1919 | 29 | 28 | 35.8 | 28 | 22.2 | 26 | 0.31 | 129 | 0 |
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| 1918 | 10.6 | 124 | 18.1 | 128 | 3.1 | 127 | 2.37 | 56 | 0 |
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| 1917 | 23.7 | 75 | 32.1 | 64 | 15.2 | 82 | 0.69 | 124 | 0 |
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| 1916 | 29.6 | 21 | 38 | 13 | 21.2 | 37 | 4.53 | 10 | 0 |
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| 1915 | 22.9 | 81 | 30.2 | 83 | 15.7 | 78 | 2.23 | 61 | 0 |
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| 1914 | 31.1 | 12 | 37.4 | 16 | 24.9 | 11 | 3.11 | 33 | 0 |
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| 1913 | 29.6 | 21 | 37.1 | 17 | 22.1 | 27 | 3.31 | 29 | 0 |
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| 1912 | 11.2 | 123 | 18.9 | 127 | 3.5 | 126 | 1.39 | 104 | 0 |
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| 1911 | 27.6 | 40 | 34.9 | 37 | 20.3 | 40 | 1.81 | 77 | 0 |
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| 1910 | 23.5 | 78 | 31.9 | 68 | 15.2 | 82 | 2.91 | 37 | 0 |
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| 1909 | 28.1 | 36 | 35.3 | 32 | 20.9 | 38 | 4.46 | 12 | 0 |
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| 1908 | | | 34.8 | 39 | 17.6 | 62 | 1.36 | 105 | 4 |
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| 1907 | 26.9 | 46 | 34.3 | 46 | 19.5 | 46 | 3.42 | 25 | 0 |
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| 1906 | 31 | 14 | 39.1 | 8 | 23 | 21 | 2.42 | 52 | 0 |
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| 1905 | | | | | | | 2.85 | 40 | 31 |
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| 1904 | 15.6 | 118 | 24.7 | 118 | 6.5 | 123 | 3.76 | 19 | 0 |
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| 1903 | 23.7 | 75 | 32.1 | 64 | 15.3 | 80 | 2.91 | 37 | 0 |
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| 1902 | 24.6 | 66 | 32.1 | 64 | 17.6 | 62 | 1.16 | 112 | 2 |
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| 1901 | 26.1 | 51 | 34.1 | 47 | 18.1 | 54 | 2.51 | 48 | 0 |
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| 1900 | 29 | 28 | 36.1 | 26 | 22 | 29 | 0.87 | 120 | 0 |
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| 1899 | 25.1 | 60 | 32.4 | 61 | 17.8 | 60 | 2.01 | 71 | 0 |
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| 1898 | | | 35.9 | 27 | | | 3.52 | 23 | 4 |
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| 1897 | 21.6 | 89 | 29.3 | 92 | 13.9 | 93 | 5.53 | 1 | 0 |
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| 1896 | | | | | | | | | 15 |
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| 1895 | | | 26.1 | 112 | 9.5 | 116 | 3.77 | 18 | 4 |
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| 1894 | 29.4 | 23 | 36.9 | 19 | 21.8 | 34 | | | 0 |
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