Every summer in Pullman, WA from 1893 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 | 64.8 | 54 | 80.9 | 23 | 48.8 | 80 | 0.53 | 114 | 1 |
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| 2025 | 66.6 | 16 | 81.8 | 9 | 51.4 | 39 | 0.49 | 115 | 0 |
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| 2024 | 65.8 | 33 | 81.2 | 17 | 50.4 | 58 | 1.93 | 71 | 0 |
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| 2023 | 66.4 | 20 | 81.8 | 9 | 51 | 46 | 1.13 | 98 | 0 |
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| 2022 | 66.5 | 18 | 80.8 | 25 | 52.2 | 30 | 4.49 | 8 | 0 |
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| 2021 | 68.8 | 2 | 83.6 | 3 | 54 | 9 | 1.31 | 93 | 0 |
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| 2020 | 64.3 | 64 | 78.3 | 69 | 50.5 | 56 | 1.86 | 74 | 1 |
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| 2019 | 65.2 | 46 | 79.6 | 45 | 50.9 | 48 | 1.61 | 82 | 0 |
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| 2018 | 65.7 | 39 | 80 | 40 | 51.3 | 42 | 1.79 | 76 | 0 |
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| 2017 | 67.6 | 6 | 83.1 | 6 | 52.1 | 32 | 1.09 | 100 | 0 |
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| 2016 | 64 | 72 | 79.7 | 43 | 48.2 | 93 | 1.93 | 71 | 0 |
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| 2015 | 67.6 | 6 | 84.4 | 2 | 50.8 | 50 | 1.14 | 97 | 0 |
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| 2014 | 65.8 | 33 | 81.7 | 13 | 49.9 | 63 | 1.76 | 79 | 0 |
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| 2013 | 64.9 | 51 | 81.5 | 14 | 48.4 | 89 | 2.38 | 58 | 0 |
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| 2012 | 63.9 | 74 | 79.3 | 50 | 48.3 | 91 | 2.51 | 53 | 1 |
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| 2011 | 61.7 | 108 | 76.5 | 101 | 46.8 | 115 | 0.59 | 111 | 0 |
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| 2010 | 62 | 106 | 76.7 | 96 | 47.3 | 111 | 3.25 | 33 | 0 |
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| 2009 | 65.5 | 42 | 80.6 | 29 | 50.4 | 58 | 3.77 | 17 | 0 |
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| 2008 | 63.2 | 92 | 78.7 | 59 | 47.7 | 104 | 3.24 | 34 | 0 |
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| 2007 | 64.6 | 59 | 81 | 20 | 48.2 | 93 | 1.78 | 78 | 0 |
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| 2006 | 65.9 | 27 | 81.9 | 8 | 49.8 | 65 | 1.90 | 73 | 0 |
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| 2005 | 63.4 | 87 | 79.4 | 48 | 47.4 | 110 | 0.68 | 110 | 0 |
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| 2004 | 64.9 | 51 | 80 | 40 | 49.7 | 67 | 0.94 | 105 | 0 |
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| 2003 | 65 | 49 | 81.8 | 9 | 48.1 | 96 | 0.89 | 106 | 0 |
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| 2002 | 62.6 | 99 | 77.8 | 81 | 47.5 | 107 | 2.06 | 69 | 1 |
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| 2001 | 62.5 | 100 | 77.5 | 86 | 47.5 | 107 | 1.99 | 70 | 0 |
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| 2000 | 61.7 | 108 | 78 | 76 | 45.3 | 123 | 0.58 | 112 | 0 |
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| 1999 | 62.2 | 105 | 76.7 | 96 | 47.7 | 104 | 1.69 | 81 | 1 |
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| 1998 | 65.8 | 33 | 80.9 | 23 | 50.8 | 50 | 2.54 | 51 | 4 |
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| 1997 | 63.8 | 78 | 78.1 | 73 | 49.6 | 68 | 2.63 | 48 | 3 |
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| 1996 | 65 | 49 | 80.6 | 29 | 49.1 | 77 | 0.81 | 108 | 4 |
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| 1995 | 61.5 | 114 | 75.3 | 114 | 48.1 | 96 | 4.13 | 10 | 4 |
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| 1994 | 65.7 | 39 | 81.8 | 9 | 49.5 | 69 | 1.10 | 99 | 1 |
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| 1993 | 61.6 | 110 | 74.3 | 118 | 49.2 | 75 | 2.80 | 44 | 3 |
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| 1992 | 66.1 | 23 | 81.3 | 16 | 50.9 | 48 | 3.35 | 28 | 0 |
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| 1991 | 63.5 | 85 | 77.6 | 84 | 49.4 | 72 | 2.61 | 49 | 0 |
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| 1990 | 65.1 | 47 | 79.1 | 53 | 50.7 | 53 | 2.83 | 43 | 2 |
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| 1989 | 63.1 | 93 | 77.6 | 84 | 48.5 | 88 | 4.80 | 6 | 0 |
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| 1988 | 63.4 | 87 | 78.4 | 67 | 48.4 | 89 | 2.46 | 55 | 0 |
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| 1987 | 64.1 | 69 | 78.5 | 64 | 49.5 | 69 | 3.34 | 29 | 2 |
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| 1986 | 64.9 | 51 | 80.5 | 32 | 49.5 | 69 | | | 2 |
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| 1985 | 64.7 | 55 | 80.8 | 25 | 48.6 | 85 | 2.85 | 41 | 1 |
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| 1984 | 63.7 | 80 | 78.7 | 59 | 48.8 | 80 | 3.42 | 27 | 0 |
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| 1983 | 63 | 95 | 76.7 | 96 | 49.3 | 74 | 4.57 | 7 | 1 |
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| 1982 | 63.7 | 80 | 77.2 | 90 | 49.9 | 63 | 2.71 | 45 | 1 |
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| 1981 | 61.6 | 110 | 76.2 | 107 | 47 | 113 | 3.65 | 18 | 0 |
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| 1980 | 59.8 | 119 | 73.3 | 122 | 46.3 | 120 | 3.56 | 21 | 0 |
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| 1979 | 63.9 | 74 | 79.1 | 53 | 48.7 | 83 | 2.84 | 42 | 0 |
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| 1978 | 62.7 | 97 | 76.5 | 101 | 48.8 | 80 | 2.68 | 46 | 0 |
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| 1977 | 65.5 | 42 | 80.3 | 36 | 50.6 | 54 | 4.10 | 11 | 1 |
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| 1976 | 60.3 | 118 | 73.7 | 120 | 47 | 113 | 3.05 | 40 | 0 |
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| 1975 | 62.4 | 101 | 75.6 | 112 | 49.1 | 77 | 5.07 | 3 | 0 |
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| 1974 | | | | | | | | | 31 |
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| 1973 | 63.9 | 74 | 79.5 | 47 | 48.3 | 91 | 0.87 | 107 | 0 |
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| 1972 | 64.4 | 61 | 79.1 | 53 | 49.8 | 65 | 1.83 | 75 | 1 |
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| 1971 | 63.7 | 80 | 78.5 | 64 | 49 | 79 | 5.61 | 2 | 0 |
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| 1970 | 66.1 | 23 | 81.2 | 17 | 51.1 | 44 | 3.17 | 37 | 0 |
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| 1969 | 63.6 | 84 | 79.2 | 52 | 48 | 100 | 1.05 | 102 | 0 |
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| 1968 | 63.5 | 85 | 78.3 | 69 | 48.6 | 85 | 2.18 | 63 | 0 |
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| 1967 | 66.4 | 20 | 83.4 | 5 | 49.4 | 72 | 2.34 | 60 | 0 |
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| 1966 | 62 | 106 | 77.2 | 90 | 46.7 | 117 | 2.60 | 50 | 0 |
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| 1965 | 63.8 | 78 | 78.3 | 69 | 49.2 | 75 | 3.24 | 34 | 0 |
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| 1964 | 61.6 | 110 | 75.2 | 115 | 47.9 | 102 | 4.97 | 5 | 0 |
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| 1963 | 62.4 | 101 | 76.8 | 94 | 48.1 | 96 | 3.52 | 23 | 0 |
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| 1962 | 61.6 | 110 | 76.7 | 96 | 46.5 | 118 | 1.55 | 86 | 2 |
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| 1961 | 68.1 | 4 | 85 | 1 | 51.1 | 44 | 2.11 | 65 | 0 |
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| 1960 | 64 | 72 | 80.3 | 36 | 47.8 | 103 | 2.51 | 53 | 0 |
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| 1959 | 62.7 | 97 | 77.9 | 78 | 47.5 | 107 | 3.26 | 32 | 0 |
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| 1958 | 67.8 | 5 | 83.5 | 4 | 52.1 | 32 | 3.46 | 25 | 0 |
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| 1957 | 62.3 | 104 | 77.4 | 87 | 47.2 | 112 | 2.26 | 61 | 0 |
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| 1956 | 64.3 | 64 | 80 | 40 | 48.6 | 85 | 3.65 | 18 | 4 |
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| 1955 | 63.1 | 93 | 78.5 | 64 | 47.6 | 106 | 1.60 | 83 | 0 |
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| 1954 | 59.7 | 120 | 73.6 | 121 | 45.8 | 121 | 3.97 | 14 | 0 |
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| 1953 | 60.8 | 117 | 75.9 | 110 | 45.6 | 122 | 2.35 | 59 | 0 |
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| 1952 | 62.9 | 96 | 77.7 | 83 | 48.2 | 93 | 5.63 | 1 | 0 |
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| 1951 | | | | | | | 3.45 | 26 | 66 |
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| 1950 | | | | | | | 3.54 | 22 | 92 |
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| 1949 | 65.1 | 47 | 77.3 | 88 | 53 | 17 | 1.56 | 85 | 0 |
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| 1948 | 63.9 | 74 | 74.7 | 117 | 53 | 17 | 3.12 | 38 | 0 |
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| 1947 | 63.7 | 80 | 75.7 | 111 | 51.7 | 34 | 2.54 | 51 | 0 |
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| 1946 | 64.3 | 64 | 76.5 | 101 | 52.3 | 29 | 2.08 | 67 | 2 |
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| 1945 | 65.4 | 44 | 78.1 | 73 | 52.6 | 26 | 1.51 | 88 | 0 |
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| 1944 | 64.3 | 64 | 76.5 | 101 | 52.2 | 30 | 2.08 | 67 | 1 |
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| 1943 | 63.4 | 87 | 74.9 | 116 | 51.7 | 34 | 2.66 | 47 | 3 |
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| 1942 | 64.7 | 55 | 76.5 | 101 | 52.9 | 23 | 2.16 | 64 | 1 |
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| 1941 | 65.8 | 33 | 76.8 | 94 | 54.6 | 4 | 4.10 | 11 | 5 |
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| 1940 | 67.3 | 9 | 80.3 | 36 | 54.3 | 5 | | | 0 |
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| 1939 | 65.7 | 39 | 78.3 | 69 | 53 | 17 | | | 0 |
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| 1938 | 66.5 | 18 | 78.7 | 59 | 54.3 | 5 | 1.50 | 89 | 0 |
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| 1937 | 64.6 | 59 | 76.1 | 108 | 53.1 | 15 | 4.40 | 9 | 0 |
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| 1936 | 66.8 | 13 | 79.3 | 50 | 54.3 | 5 | | | 4 |
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| 1935 | 64.4 | 61 | 77.2 | 90 | 51.6 | 36 | 1.54 | 87 | 2 |
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| 1934 | 66.2 | 22 | 78.8 | 58 | 53.6 | 12 | | | 0 |
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| 1933 | 66.9 | 10 | 81.1 | 19 | 52.7 | 25 | 1.79 | 76 | 2 |
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| 1932 | 65.3 | 45 | 77.9 | 78 | 52.8 | 24 | 0.70 | 109 | 0 |
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| 1931 | 66.1 | 23 | 79.1 | 53 | 53.1 | 15 | 1.37 | 92 | 6 |
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| 1930 | 65.8 | 33 | 78.4 | 67 | 53 | 17 | 1.03 | 103 | 6 |
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| 1929 | 64.4 | 61 | 77.3 | 88 | 51.6 | 36 | | | 3 |
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| 1928 | | | | | 53.4 | 14 | | | 16 |
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| 1927 | 65.9 | 27 | 78 | 76 | 53.8 | 11 | 3.65 | 18 | 2 |
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| 1926 | 66.6 | 16 | 79 | 57 | 54.3 | 5 | 5.05 | 4 | 1 |
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| 1925 | 67.6 | 6 | 80.4 | 34 | 54.7 | 3 | 1.03 | 103 | 6 |
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| 1924 | 63.4 | 87 | 76.5 | 101 | 50.4 | 58 | | | 1 |
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| 1923 | 64.7 | 55 | 76.9 | 93 | 52.5 | 27 | 3.90 | 15 | 0 |
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| 1922 | 69.6 | 1 | 82.9 | 7 | 56.3 | 2 | 1.57 | 84 | 0 |
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| 1921 | 65.9 | 27 | 79.4 | 48 | 52.4 | 28 | 1.07 | 101 | 0 |
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| 1920 | 64.7 | 55 | 77.9 | 78 | 51.4 | 39 | 3.29 | 31 | 0 |
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| 1919 | 65.9 | 27 | 81 | 20 | 50.8 | 50 | 0.48 | 116 | 0 |
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| 1918 | 66.7 | 14 | 79.7 | 43 | 53.9 | 10 | 2.10 | 66 | 1 |
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| 1917 | 66.9 | 10 | 80.7 | 28 | 53 | 17 | 0.56 | 113 | 2 |
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| 1916 | 62.4 | 101 | 74.1 | 119 | 50.5 | 56 | 4.03 | 13 | 2 |
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| 1915 | 66.7 | 14 | 80.4 | 34 | 53 | 17 | 1.30 | 95 | 0 |
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| 1914 | 66.9 | 10 | 80.5 | 32 | 53.6 | 12 | 1.39 | 91 | 6 |
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| 1913 | 68.6 | 3 | 80.6 | 29 | 56.6 | 1 | 3.20 | 36 | 3 |
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| 1912 | | | | | | | | | 35 |
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| 1911 | | | 78.6 | 62 | 51.5 | 38 | | | 13 |
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| 1910 | 64.2 | 68 | 79.6 | 45 | 48.7 | 83 | 0.33 | 117 | 4 |
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| 1909 | | | | | | | | | 42 |
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| 1908 | 65.9 | 27 | 81.5 | 14 | 50.6 | 54 | 1.75 | 80 | 6 |
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| 1907 | | | | | | | | | 48 |
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| 1906 | 65.9 | 27 | 80.8 | 25 | 51.4 | 39 | 1.31 | 93 | 2 |
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| 1905 | | | | | | | | | 25 |
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| 1904 | | | | | | | | | 30 |
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| 1903 | | | | | | | 3.34 | 29 | 18 |
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| 1902 | | | 76.7 | 96 | 48.1 | 96 | 2.25 | 62 | 11 |
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| 1901 | | | | | | | | | 34 |
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| 1900 | 63.3 | 91 | 78.6 | 62 | 48 | 100 | 2.44 | 56 | 3 |
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| 1899 | 61.5 | 114 | 76.1 | 108 | 46.8 | 115 | 3.85 | 16 | 1 |
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| 1898 | 65.8 | 33 | 80.3 | 36 | 51.2 | 43 | 3.08 | 39 | 0 |
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| 1897 | 64.1 | 69 | 77.8 | 81 | 50.3 | 61 | 3.47 | 24 | 2 |
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| 1896 | 66 | 26 | 81 | 20 | 51 | 46 | 2.42 | 57 | 0 |
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| 1895 | | | | | | | | | 62 |
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| 1894 | 64.1 | 69 | 78.1 | 73 | 50.1 | 62 | 1.43 | 90 | 0 |
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| 1893 | 61 | 116 | 75.5 | 113 | 46.5 | 118 | 1.18 | 96 | 0 |
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