Every January in Waco, TX from 1902 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 | 47.3 | 58 | 61.3 | 29 | 33.4 | 94 | 1.47 | 72 | 0 |
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| 2025 | 43.3 | 106 | 54.9 | 99 | 31.6 | 109 | 2.68 | 38 | 0 |
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| 2024 | 43.6 | 105 | 54.7 | 102 | 32.5 | 104 | 4.55 | 9 | 0 |
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| 2023 | 50 | 34 | 63.7 | 16 | 36.2 | 65 | 1.43 | 74 | 0 |
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| 2022 | 46 | 82 | 61.2 | 30 | 30.9 | 111 | 0.33 | 114 | 0 |
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| 2021 | 48.8 | 45 | 60.1 | 45 | 37.5 | 52 | 0.92 | 91 | 0 |
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| 2020 | 51.4 | 19 | 63.4 | 18 | 39.3 | 35 | 2.20 | 50 | 0 |
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| 2019 | 46.8 | 67 | 57.5 | 71 | 36.1 | 66 | 3.82 | 17 | 0 |
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| 2018 | 44.1 | 103 | 57.7 | 69 | 30.5 | 114 | 0.31 | 115 | 0 |
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| 2017 | 51.5 | 18 | 63.5 | 17 | 39.5 | 33 | 3.11 | 31 | 0 |
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| 2016 | 47.2 | 60 | 59.3 | 53 | 35.2 | 75 | 0.29 | 117 | 0 |
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| 2015 | 44.4 | 100 | 55.5 | 91 | 33.4 | 94 | 3.48 | 20 | 0 |
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| 2014 | 45.3 | 87 | 59.7 | 49 | 30.9 | 111 | 0.30 | 116 | 0 |
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| 2013 | 49.2 | 40 | 61.5 | 25 | 36.9 | 58 | 5.05 | 5 | 0 |
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| 2012 | 50.5 | 28 | 63.9 | 14 | 37.1 | 56 | 4.24 | 11 | 0 |
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| 2011 | 45 | 95 | 57.2 | 73 | 32.9 | 99 | 3.70 | 18 | 0 |
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| 2010 | 44 | 104 | 55.3 | 97 | 32.8 | 101 | 5.29 | 4 | 0 |
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| 2009 | 49.1 | 42 | 64.1 | 13 | 34.2 | 87 | 0.64 | 101 | 0 |
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| 2008 | 45.9 | 83 | 57.6 | 70 | 34.2 | 87 | 0.67 | 99 | 0 |
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| 2007 | 43.2 | 108 | 51.9 | 111 | 34.5 | 83 | 3.98 | 15 | 0 |
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| 2006 | 55.3 | 5 | 70.1 | 3 | 40.4 | 21 | 2.02 | 52 | 0 |
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| 2005 | 51.3 | 21 | 60.8 | 36 | 41.8 | 12 | 3.30 | 26 | 0 |
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| 2004 | 50.1 | 33 | 60.3 | 42 | 40 | 26 | 4.06 | 14 | 0 |
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| 2003 | 46.6 | 74 | 56.8 | 79 | 36.3 | 64 | 0.57 | 104 | 0 |
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| 2002 | 48.8 | 45 | 62 | 24 | 35.6 | 72 | 0.96 | 90 | 0 |
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| 2001 | 45.1 | 94 | 55 | 98 | 35.3 | 74 | 2.90 | 35 | 0 |
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| 2000 | 51.3 | 21 | 62.4 | 20 | 40.3 | 25 | 2.05 | 51 | 0 |
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| 1999 | 51.8 | 12 | 64.5 | 12 | 39.1 | 37 | 2.30 | 47 | 0 |
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| 1998 | 51.6 | 17 | 61.4 | 28 | 41.8 | 12 | 6.10 | 2 | 0 |
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| 1997 | 45.2 | 93 | 55.6 | 89 | 34.8 | 79 | 2.50 | 42 | 0 |
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| 1996 | 44.6 | 98 | 58.7 | 59 | 30.5 | 114 | 0.86 | 92 | 0 |
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| 1995 | 49.7 | 37 | 60.3 | 42 | 39.1 | 37 | 1.37 | 77 | 0 |
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| 1994 | 46.1 | 81 | 56.3 | 81 | 35.9 | 70 | 1.52 | 69 | 0 |
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| 1993 | 46.4 | 77 | 56 | 86 | 36.8 | 59 | 2.45 | 44 | 0 |
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| 1992 | 48.5 | 48 | 57.1 | 75 | 40 | 26 | 4.49 | 10 | 0 |
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| 1991 | 44.3 | 101 | 52.5 | 110 | 36.1 | 66 | 3.13 | 30 | 0 |
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| 1990 | 54 | 8 | 66.2 | 6 | 41.7 | 14 | 2.72 | 37 | 0 |
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| 1989 | 51.7 | 14 | 62.1 | 22 | 41.3 | 16 | 2.45 | 44 | 0 |
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| 1988 | 44.2 | 102 | 55.5 | 91 | 32.9 | 99 | 0.44 | 110 | 0 |
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| 1987 | 45.9 | 83 | 57.2 | 73 | 34.6 | 81 | 1.29 | 81 | 0 |
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| 1986 | 50.4 | 31 | 63.9 | 14 | 37 | 57 | 0.07 | 121 | 0 |
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| 1985 | 40.4 | 119 | 50.5 | 119 | 30.3 | 117 | 0.76 | 96 | 0 |
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| 1984 | 41.8 | 114 | 52.9 | 109 | 30.7 | 113 | 0.82 | 94 | 0 |
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| 1983 | 45.5 | 86 | 55.9 | 87 | 35 | 77 | 1.28 | 82 | 0 |
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| 1982 | 46.8 | 67 | 59.4 | 51 | 34.2 | 87 | 1.86 | 56 | 0 |
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| 1981 | 46.6 | 74 | 58.2 | 64 | 35 | 77 | 0.85 | 93 | 0 |
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| 1980 | 46.7 | 71 | 55.6 | 89 | 37.8 | 48 | 2.26 | 49 | 0 |
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| 1979 | 36.4 | 124 | 43.7 | 125 | 29.1 | 120 | 1.99 | 53 | 0 |
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| 1978 | 37.7 | 122 | 46.2 | 123 | 29.3 | 119 | 1.03 | 88 | 0 |
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| 1977 | 38 | 121 | 48.7 | 121 | 27.3 | 123 | 1.83 | 57 | 0 |
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| 1976 | 46.8 | 67 | 61 | 34 | 32.6 | 103 | 1.74 | 60 | 0 |
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| 1975 | 48.5 | 48 | 58.6 | 60 | 38.3 | 45 | 1.40 | 75 | 0 |
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| 1974 | 45.3 | 87 | 54.9 | 99 | 35.6 | 72 | 1.33 | 79 | 0 |
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| 1973 | 42.3 | 110 | 51 | 116 | 33.5 | 93 | 3.48 | 20 | 0 |
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| 1972 | 47.3 | 58 | 57.8 | 67 | 36.8 | 59 | 2.54 | 41 | 0 |
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| 1971 | 51.7 | 14 | 64.9 | 9 | 38.4 | 44 | 0.03 | 122 | 0 |
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| 1970 | 41.7 | 115 | 51.1 | 114 | 32.3 | 106 | 0.76 | 96 | 0 |
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| 1969 | 51.1 | 24 | 61 | 34 | 41.1 | 18 | 0.45 | 109 | 0 |
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| 1968 | 46.7 | 71 | 53 | 108 | 40.4 | 21 | 3.47 | 22 | 0 |
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| 1967 | 48.4 | 52 | 60.4 | 40 | 36.5 | 62 | 0.37 | 112 | 0 |
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| 1966 | 42.1 | 112 | 51.1 | 114 | 33.1 | 98 | 1.15 | 84 | 0 |
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| 1965 | 51.4 | 19 | 63.1 | 19 | 39.7 | 30 | 2.97 | 32 | 0 |
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| 1964 | 46.7 | 71 | 59.6 | 50 | 33.8 | 91 | 3.15 | 29 | 0 |
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| 1963 | 40.9 | 118 | 51.9 | 111 | 29.8 | 118 | 0.49 | 107 | 0 |
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| 1962 | 43 | 109 | 55.5 | 91 | 30.5 | 114 | 0.65 | 100 | 0 |
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| 1961 | 43.3 | 106 | 53.3 | 106 | 33.2 | 96 | 5.83 | 3 | 0 |
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| 1960 | 46.9 | 64 | 55.8 | 88 | 38 | 47 | 1.79 | 58 | 0 |
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| 1959 | 45.3 | 87 | 56.2 | 83 | 34.4 | 84 | 0.29 | 117 | 0 |
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| 1958 | 46.8 | 67 | 57.8 | 67 | 35.8 | 71 | 2.49 | 43 | 0 |
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| 1957 | 46.6 | 74 | 55.5 | 91 | 37.7 | 50 | 1.53 | 68 | 0 |
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| 1956 | 47.4 | 56 | 58.8 | 57 | 36 | 68 | 2.75 | 36 | 0 |
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| 1955 | 48.5 | 48 | 57.9 | 66 | 39.2 | 36 | 1.58 | 64 | 0 |
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| 1954 | 48.5 | 48 | 59.2 | 54 | 37.8 | 48 | 0.79 | 95 | 0 |
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| 1953 | 53.6 | 9 | 66.2 | 6 | 41.1 | 18 | 0.53 | 106 | 0 |
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| 1952 | 56.8 | 3 | 67.5 | 4 | 46 | 4 | 0.59 | 103 | 0 |
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| 1951 | 47.6 | 55 | 60.6 | 38 | 34.7 | 80 | 1.30 | 80 | 0 |
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| 1950 | 51.8 | 12 | 61.1 | 32 | 42.5 | 10 | 1.35 | 78 | 0 |
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| 1949 | 41.9 | 113 | 51.4 | 113 | 32.3 | 106 | 3.66 | 19 | 0 |
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| 1948 | 41.2 | 116 | 51 | 116 | 31.4 | 110 | 1.56 | 65 | 0 |
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| 1947 | 46.9 | 64 | 56.3 | 81 | 37.5 | 52 | 3.36 | 25 | 0 |
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| 1946 | 47.2 | 60 | 56.2 | 83 | 38.1 | 46 | 3.38 | 24 | 0 |
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| 1945 | 47.8 | 54 | 57 | 78 | 38.5 | 42 | 3.39 | 23 | 0 |
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| 1944 | 46.9 | 64 | 56.2 | 83 | 37.7 | 50 | 3.29 | 27 | 0 |
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| 1943 | 47.4 | 56 | 60.1 | 45 | 34.6 | 81 | 0.63 | 102 | 0 |
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| 1942 | 45 | 95 | 57.1 | 75 | 32.8 | 101 | 0.55 | 105 | 0 |
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| 1941 | 50.7 | 27 | 60.1 | 45 | 41.3 | 16 | 1.97 | 54 | 0 |
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| 1940 | 35.1 | 125 | 46.6 | 122 | 23.6 | 125 | 1.24 | 83 | 0 |
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| 1939 | 49.3 | 39 | 61.2 | 30 | 37.4 | 54 | 4.23 | 12 | 0 |
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| 1938 | 49.2 | 40 | 58.8 | 57 | 39.6 | 32 | 3.92 | 16 | 0 |
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| 1937 | 42.3 | 110 | 50.8 | 118 | 33.8 | 91 | 2.92 | 34 | 0 |
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| 1936 | 44.9 | 97 | 57.3 | 72 | 32.5 | 104 | 0.39 | 111 | 0 |
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| 1935 | 49.8 | 36 | 59.8 | 48 | 39.7 | 30 | 1.51 | 70 | 0 |
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| 1934 | 52.6 | 10 | 61.5 | 25 | 43.7 | 8 | 4.18 | 13 | 0 |
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| 1933 | 55.8 | 4 | 64.6 | 11 | 46.9 | 1 | 2.61 | 39 | 0 |
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| 1932 | 50 | 34 | 58.5 | 61 | 41.4 | 15 | 6.56 | 1 | 0 |
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| 1931 | 50.5 | 28 | 58.5 | 61 | 42.4 | 11 | 3.19 | 28 | 0 |
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| 1930 | 37 | 123 | 45.1 | 124 | 28.9 | 121 | 1.50 | 71 | 0 |
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| 1929 | 49.1 | 42 | 59.1 | 56 | 39.1 | 37 | 2.45 | 44 | 0 |
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| 1928 | 50.3 | 32 | 60.3 | 42 | 40.4 | 21 | trace | 123 | 0 |
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| 1927 | 50.5 | 28 | 61.1 | 32 | 39.9 | 28 | 1.10 | 86 | 0 |
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| 1926 | 45.6 | 85 | 54.3 | 104 | 36.8 | 59 | 4.78 | 6 | 0 |
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| 1925 | 45.3 | 87 | 56.5 | 80 | 34.1 | 90 | 1.46 | 73 | 0 |
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| 1924 | 44.6 | 98 | 54.9 | 99 | 34.3 | 86 | 1.93 | 55 | 0 |
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| 1923 | 58.5 | 1 | 70.2 | 2 | 46.8 | 2 | 0.37 | 112 | 0 |
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| 1922 | 47.2 | 60 | 54.5 | 103 | 39.8 | 29 | 2.97 | 32 | 0 |
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| 1921 | 55.2 | 6 | 65.2 | 8 | 45.2 | 5 | 1.60 | 62 | 0 |
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| 1920 | 45.3 | 87 | 53.2 | 107 | 37.3 | 55 | 4.72 | 8 | 0 |
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| 1919 | 47 | 63 | 55.5 | 91 | 38.5 | 42 | 2.29 | 48 | 0 |
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| 1918 | 38.5 | 120 | 50.1 | 120 | 26.9 | 124 | 1.06 | 87 | 0 |
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| 1917 | 48.9 | 44 | 59.2 | 54 | 38.6 | 41 | 0.49 | 107 | 0 |
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| 1916 | 48.7 | 47 | 57.1 | 75 | 40.4 | 21 | 4.74 | 7 | 0 |
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| 1915 | 45.3 | 87 | 55.5 | 91 | 35.1 | 76 | 1.56 | 65 | 0 |
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| 1914 | 51.3 | 21 | 62.1 | 22 | 40.5 | 20 | 0.20 | 120 | 0 |
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| 1913 | 50.8 | 26 | 62.2 | 21 | 39.5 | 33 | 1.78 | 59 | 0 |
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| 1912 | 41.1 | 117 | 53.6 | 105 | 28.6 | 122 | 0.00 | 125 | 0 |
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| 1911 | 54.6 | 7 | 64.9 | 9 | 44.2 | 7 | 0.26 | 119 | 0 |
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| 1910 | 48.4 | 52 | 60.5 | 39 | 36.4 | 63 | 1.12 | 85 | 0 |
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| 1909 | 52.2 | 11 | 61.5 | 25 | 42.9 | 9 | trace | 123 | 0 |
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| 1908 | 49.6 | 38 | 60.4 | 40 | 38.7 | 40 | 1.02 | 89 | 0 |
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| 1907 | 58.3 | 2 | 70.3 | 1 | 46.4 | 3 | 1.54 | 67 | 0 |
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| 1906 | 51.1 | 24 | 66.3 | 5 | 36 | 68 | 1.38 | 76 | 0 |
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| 1905 | 46.3 | 79 | 58.1 | 65 | 34.4 | 84 | 1.61 | 61 | 0 |
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| 1904 | 46.4 | 77 | 60.7 | 37 | 32.2 | 108 | 1.60 | 62 | 0 |
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| 1903 | 51.7 | 14 | 58.5 | 61 | 44.9 | 6 | 2.55 | 40 | 0 |
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| 1902 | 46.3 | 79 | 59.4 | 51 | 33.2 | 96 | 0.76 | 96 | 0 |
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