Every fall in El Cajon, CA 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 | 68.6 | 13 | 80.5 | 72 | 56.8 | 4 | 2.54 | 35 | 0 |
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| 2024 | 67.4 | 23 | 81.1 | 62 | 53.7 | 29 | 0.30 | 104 | 0 |
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| 2023 | 67.4 | 23 | 80.1 | 80 | 54.8 | 19 | 1.18 | 71 | 0 |
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| 2022 | 67.9 | 17 | 79.6 | 84 | 56.2 | 9 | 2.66 | 33 | 0 |
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| 2021 | 69 | 10 | 81.9 | 45 | 56.1 | 10 | 1.29 | 66 | 0 |
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| 2020 | 70.7 | 4 | 85.6 | 3 | 55.7 | 12 | 1.07 | 75 | 0 |
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| 2019 | 68.3 | 16 | 82.4 | 35 | 54.2 | 22 | 4.00 | 12 | 0 |
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| 2018 | 68.7 | 11 | 81.1 | 62 | 56.3 | 6 | 1.70 | 58 | 0 |
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| 2017 | 70.2 | 5 | 83.3 | 19 | 57.2 | 3 | 0.03 | 110 | 0 |
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| 2016 | 69.4 | 8 | 82.5 | 33 | 56.3 | 6 | 1.67 | 59 | 0 |
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| 2015 | 70.8 | 3 | 83.2 | 21 | 58.3 | 2 | 2.15 | 40 | 0 |
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| 2014 | 71.4 | 2 | 84.4 | 9 | 58.5 | 1 | 0.51 | 97 | 1 |
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| 2013 | 67 | 30 | 78.9 | 92 | 55.1 | 15 | 1.28 | 68 | 1 |
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| 2012 | 69.8 | 7 | 83 | 24 | 56.6 | 5 | 0.85 | 85 | 0 |
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| 2011 | 66.5 | 36 | 79.3 | 88 | 53.7 | 29 | 3.90 | 15 | 3 |
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| 2010 | 66.1 | 44 | 78.3 | 100 | 53.9 | 28 | 4.09 | 10 | 0 |
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| 2009 | 68.6 | 13 | 83 | 24 | 54.1 | 25 | 0.71 | 89 | 0 |
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| 2008 | 71.9 | 1 | 87.9 | 1 | 55.8 | 11 | 2.00 | 44 | 9 |
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| 2007 | | | | | | | | | 14 |
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| 2006 | | | | | | | | | 17 |
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| 2005 | | | | | | | | | 14 |
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| 2004 | | | | | | | 5.62 | 7 | 26 |
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| 2003 | | | | | | | 1.93 | 49 | 15 |
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| 2002 | | | | | | | 3.58 | 18 | 15 |
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| 2001 | 68.7 | 11 | 81.6 | 49 | 55.5 | 14 | 0.50 | 98 | 9 |
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| 2000 | 66 | 46 | 79.3 | 88 | 52.9 | 34 | 1.28 | 68 | 5 |
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| 1999 | | | | | | | 0.02 | 112 | 11 |
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| 1998 | | | | | | | | | 62 |
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| 1997 | | | | | | | | | 42 |
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| 1996 | | | | | | | 2.76 | 28 | 22 |
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| 1995 | 70 | 6 | 84.8 | 6 | 55 | 16 | 0.19 | 108 | 3 |
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| 1994 | | | | | | | | | 32 |
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| 1993 | | | | | 54.4 | 20 | 1.96 | 47 | 13 |
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| 1992 | | | | | | | | | 33 |
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| 1991 | | | | | | | | | 42 |
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| 1990 | 67.9 | 17 | 82.2 | 39 | 54.2 | 22 | 0.88 | 82 | 9 |
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| 1989 | | | 81.5 | 52 | 52.8 | 35 | 0.73 | 88 | 13 |
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| 1988 | | | | | | | 0.40 | 101 | 18 |
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| 1987 | | | | | | | | | 38 |
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| 1986 | 65.3 | 64 | 77.8 | 101 | 52.7 | 37 | 3.99 | 13 | 8 |
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| 1985 | | | | | 54 | 26 | 7.53 | 1 | 14 |
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| 1984 | | | | | 56.3 | 6 | 0.99 | 77 | 11 |
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| 1983 | 68.6 | 13 | 82.3 | 37 | 54.9 | 18 | 2.76 | 28 | 7 |
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| 1982 | 66.3 | 37 | 81.3 | 57 | 51.8 | 43 | 6.18 | 5 | 6 |
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| 1981 | 67.1 | 26 | 80.9 | 67 | 53.3 | 31 | 1.95 | 48 | 0 |
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| 1980 | 66.9 | 31 | 82 | 42 | 51.9 | 42 | 0.47 | 99 | 1 |
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| 1979 | | | | | | | | | 63 |
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| 1978 | | | | | 54.3 | 21 | 2.82 | 27 | 22 |
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| 1977 | 67.7 | 20 | 81.3 | 57 | 54 | 26 | 0.89 | 81 | 3 |
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| 1976 | 67.8 | 19 | 80.5 | 72 | 55 | 16 | 3.04 | 21 | 2 |
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| 1975 | 65.6 | 56 | 80 | 82 | 51.2 | 47 | 1.08 | 74 | 0 |
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| 1974 | 66.3 | 37 | 78.6 | 97 | 54.2 | 22 | 2.56 | 34 | 2 |
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| 1973 | 64.4 | 82 | 77.5 | 103 | 51.3 | 46 | 1.65 | 60 | 0 |
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| 1972 | 64.9 | 72 | 76.8 | 106 | 53 | 33 | 3.93 | 14 | 0 |
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| 1971 | 64.9 | 72 | 78.8 | 95 | 51 | 49 | 1.47 | 62 | 0 |
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| 1970 | 65.5 | 59 | 79.6 | 84 | 51.4 | 45 | 2.03 | 43 | 0 |
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| 1969 | 66.8 | 33 | 81.3 | 57 | 52.2 | 40 | 1.09 | 73 | 0 |
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| 1968 | 66.6 | 35 | 80.9 | 67 | 52.4 | 38 | 0.64 | 91 | 0 |
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| 1967 | 69.3 | 9 | 83 | 24 | 55.7 | 12 | 3.28 | 20 | 0 |
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| 1966 | 67.1 | 26 | 81 | 66 | 53.3 | 31 | 1.86 | 52 | 2 |
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| 1965 | 66.2 | 42 | 80.5 | 72 | 52 | 41 | 6.29 | 4 | 1 |
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| 1964 | 66 | 46 | 81.7 | 47 | 50.3 | 54 | 1.71 | 57 | 0 |
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| 1963 | 67.1 | 26 | 81.5 | 52 | 52.8 | 35 | 4.72 | 9 | 0 |
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| 1962 | 65.8 | 51 | 80.3 | 78 | 51.1 | 48 | 0.02 | 112 | 2 |
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| 1961 | 64.8 | 77 | 78.9 | 92 | 51 | 49 | 1.26 | 70 | 4 |
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| 1960 | 66.3 | 37 | 81.1 | 62 | 51.8 | 43 | 2.15 | 40 | 4 |
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| 1959 | 66.9 | 31 | 83.5 | 17 | 50.5 | 53 | 0.21 | 106 | 9 |
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| 1958 | 67.1 | 26 | 85 | 5 | 49.3 | 62 | 0.95 | 78 | 0 |
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| 1957 | 62.6 | 99 | 76.9 | 105 | 48.2 | 78 | 3.63 | 17 | 1 |
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| 1956 | 66.1 | 44 | 85.1 | 4 | 47 | 95 | 0.44 | 100 | 0 |
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| 1955 | 64.8 | 77 | 80.5 | 72 | 49.1 | 65 | 0.83 | 86 | 1 |
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| 1954 | 65.1 | 69 | 83.2 | 21 | 47 | 95 | 0.66 | 90 | 0 |
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| 1953 | 67.3 | 25 | 84.5 | 8 | 50.1 | 55 | 1.32 | 64 | 0 |
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| 1952 | 66.3 | 37 | 83.7 | 12 | 48.8 | 68 | 1.97 | 45 | 0 |
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| 1951 | 65.1 | 69 | 81.6 | 49 | 48.6 | 71 | 2.21 | 39 | 0 |
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| 1950 | 64.9 | 72 | 83.2 | 21 | 46.6 | 99 | 1.29 | 66 | 0 |
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| 1949 | 66 | 46 | 83.7 | 12 | 48.3 | 74 | 1.41 | 63 | 4 |
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| 1948 | 64.9 | 72 | 82.8 | 28 | 47.1 | 92 | 0.88 | 82 | 6 |
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| 1947 | 64.8 | 77 | 81.5 | 52 | 48.3 | 74 | 1.04 | 76 | 1 |
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| 1946 | 63.4 | 96 | 80.6 | 70 | 46.1 | 105 | 3.70 | 16 | 3 |
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| 1945 | 66.3 | 37 | 82.5 | 33 | 50 | 56 | 0.62 | 93 | 1 |
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| 1944 | 64.1 | 84 | 79 | 91 | 49.1 | 65 | 4.02 | 11 | 0 |
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| 1943 | 65.8 | 51 | 84.4 | 9 | 47.7 | 84 | 0.33 | 103 | 5 |
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| 1942 | 64 | 86 | 80.9 | 67 | 47.1 | 92 | 0.64 | 91 | 0 |
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| 1941 | 63.7 | 90 | 79.5 | 86 | 47.9 | 83 | 4.85 | 8 | 0 |
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| 1940 | 65.2 | 65 | 81.4 | 56 | 48.4 | 73 | 2.31 | 37 | 9 |
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| 1939 | | | 83.7 | 12 | | | 6.52 | 2 | 19 |
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| 1938 | 65.4 | 62 | 83.3 | 19 | 47 | 95 | 0.36 | 102 | 7 |
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| 1937 | 66.8 | 33 | 83.6 | 16 | 49.9 | 58 | 0.03 | 110 | 0 |
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| 1936 | 65.5 | 59 | 81.6 | 49 | 49.3 | 62 | 1.87 | 51 | 0 |
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| 1935 | 63.5 | 94 | 79.3 | 88 | 47.7 | 84 | 0.19 | 108 | 0 |
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| 1934 | 65.2 | 65 | 81.2 | 60 | 49 | 67 | 1.81 | 54 | 4 |
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| 1933 | 63.7 | 90 | 81.2 | 60 | 46.5 | 101 | 0.53 | 96 | 8 |
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| 1932 | 62.2 | 101 | 78.5 | 99 | 45.8 | 106 | 1.30 | 65 | 0 |
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| 1931 | 64 | 86 | 78.6 | 97 | 49.3 | 62 | 2.87 | 24 | 0 |
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| 1930 | 64.7 | 81 | 80.6 | 70 | 48.7 | 70 | 2.69 | 31 | 0 |
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| 1929 | 66 | 46 | 83.7 | 12 | 48.3 | 74 | 0.55 | 95 | 0 |
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| 1928 | 64.9 | 72 | 82.8 | 28 | 47 | 95 | 1.81 | 54 | 0 |
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| 1927 | 65.6 | 56 | 81.8 | 46 | 49.5 | 59 | 3.32 | 19 | 0 |
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| 1926 | 65.6 | 56 | 83.4 | 18 | 47.7 | 84 | 0.87 | 84 | 0 |
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| 1925 | 62.9 | 98 | 77.7 | 102 | 48.2 | 78 | 6.40 | 3 | 0 |
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| 1924 | 63.9 | 88 | 82.3 | 37 | 45.6 | 107 | 0.90 | 80 | 0 |
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| 1923 | 65.2 | 65 | 82.2 | 39 | 48.2 | 78 | 0.95 | 78 | 0 |
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| 1922 | 65.2 | 65 | 83 | 24 | 47.5 | 89 | | | 0 |
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| 1921 | 65.5 | 59 | 81.7 | 47 | 49.4 | 60 | 2.88 | 23 | 0 |
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| 1920 | 62.6 | 99 | 78.7 | 96 | 46.6 | 99 | 1.10 | 72 | 0 |
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| 1919 | 63.5 | 94 | 79.4 | 87 | 47.2 | 91 | 2.31 | 37 | 2 |
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| 1918 | 67.6 | 21 | 82.8 | 28 | 52.4 | 38 | 2.69 | 31 | 0 |
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| 1917 | 67.6 | 21 | 85.9 | 2 | 49.4 | 60 | | | 0 |
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| 1916 | 61.8 | 102 | 77.3 | 104 | 46.4 | 102 | | | 0 |
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| 1915 | 63 | 97 | 79.7 | 83 | 46.3 | 103 | | | 0 |
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| 1914 | 65.7 | 54 | 80.5 | 72 | 51 | 49 | 2.54 | 35 | 0 |
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| 1913 | 66 | 46 | 81.1 | 62 | 50.9 | 52 | 2.85 | 26 | 0 |
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| 1912 | | | 82.7 | 31 | | | 1.53 | 61 | 19 |
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| 1911 | | | | | | | 0.74 | 87 | 29 |
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| 1910 | 65.7 | 54 | 81.5 | 52 | 50 | 56 | 1.97 | 45 | 0 |
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| 1909 | 63.7 | 90 | 80.3 | 78 | 47.1 | 92 | 2.87 | 24 | 0 |
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| 1908 | 63.8 | 89 | 80.1 | 80 | 47.6 | 87 | 1.75 | 56 | 0 |
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| 1907 | 65.4 | 62 | 82.1 | 41 | 48.6 | 71 | 2.72 | 30 | 0 |
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| 1906 | 66.2 | 42 | 84.1 | 11 | 48.3 | 74 | 1.82 | 53 | 0 |
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| 1905 | 65 | 71 | 82.4 | 35 | 47.5 | 89 | 5.71 | 6 | 0 |
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| 1904 | | | 84.6 | 7 | | | 0.27 | 105 | 12 |
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| 1903 | 65.8 | 51 | 82.6 | 32 | 48.8 | 68 | 0.20 | 107 | 2 |
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| 1902 | 63.6 | 93 | 78.9 | 92 | 48.2 | 78 | 1.93 | 49 | 1 |
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| 1901 | 64.2 | 83 | 80.4 | 77 | 48 | 82 | 0.60 | 94 | 0 |
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| 1900 | 64.1 | 84 | 82 | 42 | 46.2 | 104 | 3.01 | 22 | 0 |
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| 1899 | 64.8 | 77 | 82 | 42 | 47.6 | 87 | 2.06 | 42 | 0 |
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