Every May in Wausau, WI from 1895 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 | 55.3 | 65 | 67.6 | 59 | 42.9 | 73 | 3.14 | 70 | 0 |
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| 2025 | 56.2 | 56 | 68.1 | 52 | 44.4 | 61 | 2.15 | 101 | 0 |
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| 2024 | 58.3 | 32 | 69.4 | 38 | 47.3 | 23 | 5.83 | 16 | 0 |
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| 2023 | 58.7 | 28 | 71.6 | 15 | 45.8 | 43 | 2.53 | 92 | 0 |
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| 2022 | 60.2 | 13 | 70.6 | 25 | 49.8 | 9 | 2.91 | 78 | 1 |
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| 2021 | 57.2 | 44 | 68.3 | 51 | 46.1 | 39 | 3.52 | 59 | 0 |
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| 2020 | 54.1 | 76 | 64 | 97 | 44.3 | 63 | 3.02 | 75 | 0 |
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| 2019 | 52.3 | 105 | 62.2 | 112 | 42.4 | 87 | 5.54 | 20 | 0 |
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| 2018 | 63.3 | 3 | 75.6 | 4 | 51 | 4 | 3.08 | 72 | 0 |
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| 2017 | 53.7 | 83 | 64 | 97 | 43.4 | 70 | 3.88 | 48 | 0 |
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| 2016 | 58.5 | 30 | 70.5 | 26 | 46.6 | 32 | 2.89 | 79 | 0 |
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| 2015 | 57.5 | 39 | 68.9 | 42 | 46.1 | 39 | 6.01 | 13 | 0 |
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| 2014 | 56.5 | 51 | 67.4 | 63 | 45.7 | 44 | 3.48 | 62 | 0 |
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| 2013 | 56.7 | 48 | 67.8 | 58 | 45.5 | 50 | 4.75 | 30 | 0 |
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| 2012 | 60 | 15 | 72.7 | 12 | 47.4 | 22 | 3.91 | 47 | 0 |
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| 2011 | 55.4 | 60 | 65.2 | 82 | 45.6 | 46 | 2.93 | 77 | 0 |
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| 2010 | 58.3 | 32 | 69.6 | 34 | 47.1 | 25 | 1.97 | 106 | 0 |
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| 2009 | 55.4 | 60 | 66.1 | 74 | 44.7 | 56 | 3.70 | 51 | 0 |
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| 2008 | 52 | 107 | 64.4 | 92 | 39.5 | 119 | 3.49 | 61 | 0 |
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| 2007 | 59.2 | 21 | 71.4 | 18 | 46.9 | 28 | 2.10 | 102 | 0 |
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| 2006 | 57.3 | 42 | 67.6 | 59 | 47 | 26 | 4.96 | 27 | 0 |
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| 2005 | 53.7 | 83 | 63.8 | 101 | 43.5 | 68 | 1.73 | 110 | 0 |
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| 2004 | 53.3 | 88 | 63.9 | 99 | 42.7 | 81 | 5.06 | 24 | 0 |
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| 2003 | 54.2 | 75 | 65.8 | 78 | 42.6 | 82 | 3.64 | 53 | 0 |
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| 2002 | 50.9 | 114 | 61.6 | 116 | 40.3 | 110 | 3.23 | 68 | 0 |
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| 2001 | 57.4 | 40 | 68 | 55 | 46.8 | 29 | 5.02 | 26 | 0 |
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| 2000 | 58.6 | 29 | 69 | 40 | 48.2 | 16 | 3.59 | 56 | 0 |
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| 1999 | 59.1 | 23 | 70 | 31 | 48.3 | 14 | 5.81 | 17 | 0 |
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| 1998 | 63.2 | 4 | 74.9 | 7 | 51.5 | 3 | 5.24 | 23 | 0 |
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| 1997 | 50.5 | 116 | 61.4 | 118 | 39.7 | 116 | 2.29 | 95 | 0 |
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| 1996 | 53 | 91 | 63.6 | 104 | 42.5 | 84 | 2.02 | 105 | 0 |
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| 1995 | 55.3 | 65 | 66.5 | 71 | 44.2 | 64 | 3.24 | 67 | 0 |
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| 1994 | 57.2 | 44 | 69.7 | 32 | 44.6 | 58 | 1.53 | 116 | 0 |
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| 1993 | 54.5 | 73 | 64.6 | 90 | 44.4 | 61 | 6.55 | 9 | 0 |
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| 1992 | 56.6 | 49 | 69.5 | 37 | 43.7 | 67 | 4.62 | 32 | 0 |
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| 1991 | 60 | 15 | 69.4 | 38 | 50.6 | 5 | 4.37 | 40 | 0 |
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| 1990 | 52.9 | 94 | 63.6 | 104 | 42.1 | 93 | 4.54 | 34 | 0 |
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| 1989 | 55.4 | 60 | 67.2 | 65 | 43.5 | 68 | 4.42 | 39 | 0 |
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| 1988 | 60.4 | 12 | 75.3 | 5 | 45.6 | 46 | 2.04 | 104 | 0 |
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| 1987 | 59.7 | 19 | 71.9 | 13 | 47.5 | 21 | 3.13 | 71 | 0 |
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| 1986 | 59.3 | 20 | 70.3 | 28 | 48.3 | 14 | 1.16 | 122 | 0 |
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| 1985 | 60 | 15 | 71.1 | 21 | 48.8 | 13 | 2.84 | 80 | 0 |
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| 1984 | 52.7 | 97 | 63.8 | 101 | 41.6 | 98 | 2.09 | 103 | 0 |
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| 1983 | 50.1 | 117 | 60.4 | 123 | 39.9 | 114 | 4.62 | 32 | 0 |
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| 1982 | 60.9 | 10 | 71.2 | 20 | 50.6 | 5 | 2.71 | 83 | 0 |
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| 1981 | 54.9 | 69 | 67.3 | 64 | 42.5 | 84 | 2.59 | 90 | 0 |
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| 1980 | 59.1 | 23 | 71.6 | 15 | 46.6 | 32 | 3.64 | 53 | 0 |
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| 1979 | 51.9 | 109 | 62.1 | 113 | 41.8 | 96 | 3.94 | 46 | 0 |
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| 1978 | 58.1 | 34 | 69.6 | 34 | 46.6 | 32 | 4.93 | 28 | 0 |
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| 1977 | 64.8 | 1 | 77.8 | 2 | 51.9 | 2 | 3.70 | 51 | 0 |
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| 1976 | 53.8 | 81 | 66 | 76 | 41.6 | 98 | 2.96 | 76 | 0 |
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| 1975 | 60 | 15 | 71.7 | 14 | 48.2 | 16 | 2.22 | 99 | 0 |
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| 1974 | 51.5 | 111 | 61.5 | 117 | 41.5 | 101 | 2.78 | 82 | 0 |
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| 1973 | 51.4 | 112 | 60.9 | 120 | 42 | 94 | 7.01 | 6 | 0 |
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| 1972 | 60.1 | 14 | 73.4 | 10 | 46.8 | 29 | 1.41 | 118 | 0 |
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| 1971 | 52.2 | 106 | 65 | 85 | 39.5 | 119 | 4.25 | 41 | 0 |
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| 1970 | 55.4 | 60 | 65.9 | 77 | 44.9 | 55 | 7.62 | 3 | 0 |
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| 1969 | 56.5 | 51 | 68.5 | 48 | 44.6 | 58 | 5.77 | 18 | 0 |
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| 1968 | 52.6 | 101 | 62.6 | 110 | 42.6 | 82 | 6.79 | 8 | 0 |
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| 1967 | 49.3 | 120 | 60.6 | 122 | 38.1 | 124 | 1.62 | 112 | 0 |
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| 1966 | 50.8 | 115 | 61.9 | 115 | 39.6 | 117 | 1.37 | 119 | 0 |
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| 1965 | 58.8 | 27 | 69.7 | 32 | 47.9 | 18 | 5.61 | 19 | 0 |
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| 1964 | 59.1 | 23 | 71.4 | 18 | 47.2 | 24 | 3.60 | 55 | 2 |
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| 1963 | 53 | 91 | 64.7 | 88 | 41.3 | 105 | 3.34 | 64 | 0 |
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| 1962 | 59.2 | 21 | 68.7 | 44 | 49.7 | 10 | 3.35 | 63 | 0 |
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| 1961 | 52.7 | 97 | 65.4 | 81 | 40.1 | 111 | 2.66 | 85 | 0 |
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| 1960 | 54.1 | 76 | 64.2 | 95 | 44 | 66 | 5.42 | 21 | 0 |
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| 1959 | | | | | | | | | 9 |
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| 1958 | 54.7 | 71 | 68.1 | 52 | 41.3 | 105 | 2.41 | 93 | 0 |
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| 1957 | 53.3 | 88 | 64.4 | 92 | 42.2 | 92 | 3.87 | 49 | 0 |
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| 1956 | 52.8 | 95 | 64.1 | 96 | 41.6 | 98 | 3.28 | 65 | 0 |
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| 1955 | 57.9 | 37 | 70.3 | 28 | 45.5 | 50 | 3.95 | 45 | 0 |
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| 1954 | 49.2 | 122 | 59.7 | 126 | 38.6 | 122 | 3.58 | 57 | 0 |
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| 1953 | 55.8 | 59 | 68.6 | 45 | 43 | 72 | 1.74 | 109 | 0 |
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| 1952 | 54.5 | 73 | 66.1 | 74 | 42.8 | 76 | 4.10 | 43 | 0 |
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| 1951 | 58.5 | 30 | 70.9 | 22 | 46 | 41 | 3.52 | 59 | 0 |
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| 1950 | 54.1 | 76 | 66.5 | 71 | 41.7 | 97 | 2.70 | 84 | 0 |
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| 1949 | 56.6 | 49 | 70.4 | 27 | 42.8 | 76 | 1.08 | 123 | 0 |
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| 1948 | 53.8 | 81 | 67.5 | 61 | 40.1 | 111 | 1.62 | 112 | 0 |
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| 1947 | 48.7 | 123 | 59.9 | 124 | 38 | 125 | | | 2 |
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| 1946 | 52.5 | 103 | 65 | 85 | 40 | 113 | 3.83 | 50 | 0 |
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| 1945 | 49.3 | 120 | 61 | 119 | 38.4 | 123 | | | 3 |
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| 1944 | 58.1 | 34 | 69.6 | 34 | 46.8 | 29 | 3.16 | 69 | 1 |
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| 1943 | 53.1 | 90 | 63.9 | 99 | 42.4 | 87 | 5.94 | 14 | 0 |
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| 1942 | 52.7 | 97 | 62.6 | 110 | 42.8 | 76 | 10.74 | 1 | 0 |
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| 1941 | 61.8 | 7 | 73.6 | 8 | 49.9 | 8 | 7.25 | 5 | 1 |
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| 1940 | 53.4 | 86 | 65.2 | 82 | 41.5 | 101 | 4.24 | 42 | 0 |
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| 1939 | 61.4 | 8 | 75 | 6 | 47.7 | 19 | 5.90 | 15 | 0 |
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| 1938 | 56.5 | 51 | 66.7 | 69 | 46.4 | 37 | 6.26 | 10 | 0 |
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| 1937 | | | | | | | 2.83 | 81 | 16 |
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| 1936 | 62.5 | 6 | 76 | 3 | 49 | 12 | 7.26 | 4 | 0 |
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| 1935 | 53 | 91 | 64.5 | 91 | 41.4 | 104 | 1.92 | 107 | 0 |
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| 1934 | 64.3 | 2 | 79.1 | 1 | 49.5 | 11 | 1.28 | 121 | 0 |
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| 1933 | 57.3 | 42 | 67.9 | 57 | 46.6 | 32 | 2.60 | 89 | 0 |
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| 1932 | 55.3 | 65 | 66.4 | 73 | 44.2 | 64 | 2.63 | 87 | 0 |
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| 1931 | 54 | 79 | 65.6 | 80 | 42.4 | 87 | 0.61 | 124 | 0 |
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| 1930 | 56.2 | 56 | 66.8 | 67 | 45.6 | 46 | 2.24 | 98 | 0 |
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| 1929 | 52 | 107 | 63.4 | 106 | 40.5 | 109 | 3.04 | 74 | 0 |
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| 1928 | 56.9 | 47 | 68.6 | 45 | 45.3 | 52 | 2.29 | 95 | 0 |
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| 1927 | 51.6 | 110 | 60.9 | 120 | 42.3 | 90 | 3.27 | 66 | 0 |
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| 1926 | 56.5 | 51 | 68.4 | 49 | 44.5 | 60 | 3.55 | 58 | 0 |
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| 1925 | 51 | 113 | 63.3 | 108 | 38.7 | 121 | 0.46 | 125 | 0 |
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| 1924 | 46.4 | 124 | 55.2 | 127 | 37.5 | 126 | 3.07 | 73 | 0 |
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| 1923 | 55.2 | 68 | 67.5 | 61 | 42.8 | 76 | 1.56 | 114 | 0 |
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| 1922 | 60.5 | 11 | 70.9 | 22 | 50.2 | 7 | 2.61 | 88 | 0 |
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| 1921 | 57.8 | 38 | 68.9 | 42 | 46.6 | 32 | 3.99 | 44 | 0 |
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| 1920 | 54.6 | 72 | 66.8 | 67 | 42.5 | 84 | 2.39 | 94 | 0 |
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| 1919 | 53.9 | 80 | 64.9 | 87 | 42.8 | 76 | 2.25 | 97 | 0 |
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| 1918 | 57.1 | 46 | 68.4 | 49 | 45.7 | 44 | 7.85 | 2 | 0 |
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| 1917 | 49.5 | 119 | 62 | 114 | 37 | 127 | 1.29 | 120 | 0 |
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| 1916 | 52.8 | 95 | 63.2 | 109 | 42.3 | 90 | 2.64 | 86 | 0 |
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| 1915 | 49.9 | 118 | 59.8 | 125 | 39.9 | 114 | 4.46 | 36 | 1 |
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| 1914 | 58.1 | 34 | 69 | 40 | 47 | 26 | 4.51 | 35 | 2 |
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| 1913 | 52.7 | 97 | 63.4 | 106 | 42 | 94 | | | 0 |
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| 1912 | 55.4 | 60 | 68 | 55 | 42.9 | 73 | 5.28 | 22 | 1 |
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| 1911 | 61 | 9 | 73.4 | 10 | 47.7 | 19 | 6.03 | 12 | 3 |
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| 1910 | 52.4 | 104 | 65.2 | 82 | 39.6 | 117 | 1.54 | 115 | 3 |
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| 1909 | 53.4 | 86 | 63.8 | 101 | 42.9 | 73 | 1.66 | 111 | 0 |
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| 1908 | 56.2 | 56 | 66.9 | 66 | 45.6 | 46 | 4.43 | 37 | 0 |
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| 1907 | | | | | 35.1 | 128 | 1.84 | 108 | 6 |
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| 1906 | | | 66.6 | 70 | 43.2 | 71 | 4.85 | 29 | 4 |
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| 1905 | 53.5 | 85 | 65.7 | 79 | 41.5 | 101 | 4.74 | 31 | 1 |
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| 1904 | | | | | 41.2 | 107 | | | 9 |
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| 1903 | 56.4 | 55 | 68.1 | 52 | 44.7 | 56 | 6.87 | 7 | 0 |
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| 1902 | | | 70.3 | 28 | 45.2 | 54 | | | 5 |
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| 1901 | | | 70.7 | 24 | | | | | 6 |
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| 1900 | 59.1 | 23 | 71.5 | 17 | 46.4 | 37 | 1.47 | 117 | 2 |
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| 1899 | 54.9 | 69 | 64.7 | 88 | 45.3 | 52 | 4.43 | 37 | 3 |
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| 1898 | | | | | | | 2.55 | 91 | 8 |
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| 1897 | 52.6 | 101 | 64.4 | 92 | 40.8 | 108 | 2.20 | 100 | 0 |
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| 1896 | 62.9 | 5 | 73.5 | 9 | 52.4 | 1 | 5.03 | 25 | 0 |
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| 1895 | 57.4 | 40 | 68.6 | 45 | 46 | 41 | 6.25 | 11 | 2 |
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