Every February in Peoria, IL from 1883 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 | 34.5 | 21 | 45.7 | 8 | 23.3 | 44 | 0.43 | 132 | 0 |
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| 2025 | 29.1 | 60 | 38 | 52 | 20.3 | 64 | 0.40 | 133 | 0 |
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| 2024 | 40.5 | 1 | 52.2 | 1 | 28.9 | 8 | 0.62 | 119 | 0 |
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| 2023 | 35.9 | 12 | 46.2 | 5 | 25.6 | 24 | 3.32 | 12 | 0 |
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| 2022 | 26.2 | 95 | 36.1 | 76 | 16.4 | 106 | 2.73 | 23 | 0 |
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| 2021 | 19.5 | 129 | 26.8 | 137 | 12.1 | 127 | 1.35 | 82 | 0 |
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| 2020 | 29.8 | 52 | 37.7 | 54 | 21.9 | 53 | 1.71 | 59 | 0 |
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| 2019 | 26.9 | 85 | 35.1 | 86 | 18.8 | 85 | 3.00 | 13 | 0 |
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| 2018 | 29.9 | 50 | 39.7 | 41 | 20.1 | 65 | 4.68 | 4 | 0 |
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| 2017 | 40.5 | 1 | 51.7 | 2 | 29.4 | 5 | 1.09 | 96 | 0 |
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| 2016 | 33.3 | 29 | 42.1 | 22 | 24.4 | 34 | 0.62 | 119 | 0 |
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| 2015 | 18.7 | 133 | 27.7 | 131 | 9.6 | 135 | 1.50 | 74 | 0 |
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| 2014 | 17.9 | 136 | 26.9 | 136 | 8.9 | 136 | 2.77 | 21 | 0 |
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| 2013 | 28.9 | 61 | 36.1 | 76 | 21.6 | 55 | 2.90 | 15 | 0 |
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| 2012 | 34.4 | 23 | 43.2 | 17 | 25.5 | 25 | 1.74 | 55 | 0 |
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| 2011 | 28.4 | 67 | 36.3 | 73 | 20.5 | 61 | 3.41 | 11 | 0 |
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| 2010 | 24.3 | 108 | 31.8 | 114 | 16.7 | 104 | 1.86 | 48 | 0 |
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| 2009 | 31.3 | 43 | 40.5 | 34 | 22.1 | 52 | 2.02 | 40 | 0 |
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| 2008 | 24.5 | 104 | 32.2 | 112 | 16.8 | 102 | 3.94 | 5 | 0 |
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| 2007 | 19.7 | 128 | 27.1 | 135 | 12.3 | 126 | 2.56 | 29 | 0 |
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| 2006 | 29.8 | 52 | 39.7 | 41 | 20 | 67 | 0.56 | 126 | 0 |
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| 2005 | 35 | 18 | 42.8 | 19 | 27.3 | 16 | 1.73 | 57 | 0 |
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| 2004 | 30 | 48 | 38.2 | 50 | 21.8 | 54 | 0.52 | 130 | 0 |
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| 2003 | 24.4 | 106 | 33.1 | 102 | 15.6 | 112 | 0.77 | 113 | 0 |
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| 2002 | 34.2 | 25 | 43.3 | 16 | 25.1 | 30 | 1.15 | 92 | 0 |
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| 2001 | 28.5 | 66 | 37.3 | 60 | 19.8 | 73 | 2.82 | 20 | 0 |
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| 2000 | 36.7 | 6 | 45 | 11 | 28.4 | 10 | 1.82 | 53 | 0 |
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| 1999 | 36 | 11 | 44.4 | 13 | 27.7 | 15 | 1.16 | 91 | 0 |
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| 1998 | 39.5 | 3 | 45.8 | 7 | 33.3 | 1 | 2.64 | 26 | 0 |
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| 1997 | 31.9 | 37 | 38.3 | 48 | 25.4 | 26 | 5.37 | 2 | 0 |
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| 1996 | 28.9 | 61 | 38.5 | 47 | 19.3 | 79 | 0.82 | 112 | 0 |
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| 1995 | 28.3 | 68 | 37.5 | 57 | 19.1 | 82 | 0.54 | 128 | 0 |
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| 1994 | 26.1 | 96 | 35.4 | 84 | 16.9 | 100 | 1.98 | 42 | 0 |
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| 1993 | 25.1 | 101 | 32.8 | 105 | 17.4 | 97 | 1.68 | 62 | 0 |
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| 1992 | 35.6 | 14 | 42.9 | 18 | 28.2 | 13 | 1.55 | 72 | 0 |
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| 1991 | 32.3 | 33 | 40.6 | 32 | 24.1 | 37 | 0.57 | 124 | 0 |
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| 1990 | 33.6 | 26 | 42.1 | 22 | 25.2 | 29 | 3.59 | 8 | 0 |
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| 1989 | 18.7 | 133 | 26.5 | 138 | 10.9 | 132 | 1.17 | 90 | 0 |
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| 1988 | 23.5 | 114 | 32.8 | 105 | 14.2 | 119 | 0.71 | 117 | 0 |
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| 1987 | 35.7 | 13 | 45.5 | 10 | 25.9 | 23 | 0.84 | 107 | 0 |
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| 1986 | 23.5 | 114 | 30.8 | 119 | 16.2 | 108 | 1.79 | 54 | 0 |
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| 1985 | 23.2 | 117 | 31.2 | 115 | 15.2 | 115 | 2.62 | 27 | 0 |
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| 1984 | 35.4 | 16 | 43.7 | 15 | 27.2 | 17 | 2.28 | 37 | 0 |
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| 1983 | 33.4 | 27 | 41.6 | 27 | 25.3 | 27 | 1.01 | 101 | 0 |
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| 1982 | 24.7 | 103 | 32.7 | 107 | 16.8 | 102 | 1.13 | 93 | 0 |
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| 1981 | 27.8 | 75 | 37.5 | 57 | 18.1 | 91 | 2.41 | 34 | 0 |
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| 1980 | 19.9 | 127 | 27.7 | 131 | 12.1 | 127 | 1.06 | 99 | 0 |
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| 1979 | 14.7 | 140 | 23.1 | 143 | 6.3 | 140 | 1.37 | 79 | 0 |
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| 1978 | 15.4 | 137 | 24 | 140 | 6.7 | 139 | 0.59 | 121 | 0 |
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| 1977 | 26.9 | 85 | 36.4 | 71 | 17.5 | 96 | 0.95 | 104 | 0 |
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| 1976 | 34.9 | 19 | 45.7 | 8 | 24 | 38 | 2.56 | 29 | 0 |
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| 1975 | 26 | 97 | 32 | 113 | 20.1 | 65 | 2.85 | 17 | 0 |
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| 1974 | 29.4 | 57 | 38.2 | 50 | 20.6 | 59 | 1.65 | 65 | 0 |
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| 1973 | 28.9 | 61 | 36.6 | 66 | 21.2 | 57 | 0.99 | 103 | 0 |
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| 1972 | 24.5 | 104 | 33.8 | 97 | 15.2 | 115 | 0.74 | 116 | 0 |
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| 1971 | 27.7 | 78 | 35.5 | 83 | 19.9 | 69 | 1.64 | 66 | 0 |
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| 1970 | 25.9 | 98 | 36 | 79 | 15.8 | 111 | 0.64 | 118 | 0 |
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| 1969 | 30.4 | 47 | 37.1 | 61 | 23.6 | 39 | 0.56 | 126 | 0 |
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| 1968 | 23.7 | 113 | 33.5 | 98 | 13.9 | 120 | 1.55 | 72 | 0 |
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| 1967 | 21.8 | 120 | 30.9 | 117 | 12.7 | 124 | 1.07 | 97 | 0 |
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| 1966 | 27.8 | 75 | 36.1 | 76 | 19.4 | 78 | 2.60 | 28 | 0 |
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| 1965 | 26.9 | 85 | 36.6 | 66 | 17.3 | 99 | 0.93 | 105 | 0 |
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| 1964 | 28.1 | 70 | 36.9 | 63 | 19.2 | 81 | 0.54 | 128 | 0 |
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| 1963 | 18.6 | 135 | 28.7 | 126 | 8.5 | 137 | 0.48 | 131 | 0 |
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| 1962 | 25.9 | 98 | 33 | 103 | 18.8 | 85 | 1.23 | 87 | 0 |
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| 1961 | 31.8 | 39 | 40.6 | 32 | 23 | 45 | 1.07 | 97 | 0 |
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| 1960 | 23.9 | 110 | 29.8 | 123 | 18.1 | 91 | 1.98 | 42 | 0 |
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| 1959 | 27 | 83 | 35.1 | 86 | 18.8 | 85 | 1.84 | 51 | 0 |
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| 1958 | 19.4 | 130 | 27.8 | 130 | 11.1 | 130 | 0.57 | 124 | 0 |
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| 1957 | 34.5 | 21 | 41.2 | 29 | 27.8 | 14 | 0.83 | 109 | 0 |
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| 1956 | 29.8 | 52 | 37.1 | 61 | 22.5 | 50 | 1.11 | 94 | 0 |
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| 1955 | 28 | 71 | 36.2 | 75 | 19.9 | 69 | 2.44 | 32 | 0 |
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| 1954 | 37.4 | 5 | 46.6 | 4 | 28.3 | 11 | 2.68 | 25 | 0 |
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| 1953 | 32.8 | 32 | 42.3 | 21 | 23.4 | 43 | 0.77 | 113 | 0 |
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| 1952 | 33 | 31 | 40.7 | 31 | 25.3 | 27 | 1.59 | 71 | 0 |
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| 1951 | 27.9 | 72 | 35.9 | 81 | 19.9 | 69 | 3.44 | 10 | 0 |
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| 1950 | 26.8 | 91 | 34.9 | 89 | 18.8 | 85 | 2.75 | 22 | 0 |
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| 1949 | 27.5 | 79 | 36 | 79 | 19 | 84 | 1.63 | 69 | 0 |
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| 1948 | 27.4 | 81 | 36.6 | 66 | 18.3 | 90 | 1.68 | 62 | 1 |
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| 1947 | 21.5 | 121 | 29.7 | 124 | 13.3 | 122 | 0.33 | 135 | 0 |
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| 1946 | 30.9 | 45 | 40.1 | 36 | 21.6 | 55 | 0.58 | 122 | 0 |
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| 1945 | 29.5 | 56 | 36.3 | 73 | 22.8 | 47 | 1.24 | 85 | 0 |
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| 1944 | 29.4 | 57 | 39 | 45 | 19.9 | 69 | 1.74 | 55 | 1 |
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| 1943 | 29.8 | 52 | 39.8 | 39 | 19.8 | 73 | 1.04 | 100 | 0 |
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| 1942 | 26.8 | 91 | 32.3 | 110 | 21.2 | 57 | 4.95 | 3 | 0 |
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| 1941 | 25.7 | 100 | 33.5 | 98 | 17.9 | 94 | 1.01 | 101 | 0 |
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| 1940 | 29.4 | 57 | 35.1 | 86 | 23.6 | 39 | 0.86 | 106 | 1 |
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| 1939 | 27.5 | 79 | 36.6 | 66 | 18.4 | 89 | 2.88 | 16 | 0 |
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| 1938 | 36.2 | 9 | 42.8 | 19 | 29.6 | 4 | 2.21 | 38 | 0 |
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| 1937 | 27.9 | 72 | 36.5 | 70 | 19.3 | 79 | 2.46 | 31 | 0 |
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| 1936 | 14.2 | 141 | 23.8 | 141 | 4.7 | 142 | 1.63 | 69 | 1 |
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| 1935 | 31.4 | 41 | 37.7 | 54 | 25.1 | 30 | 2.83 | 19 | 0 |
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| 1934 | 23.8 | 111 | 32.5 | 108 | 15 | 117 | 0.77 | 113 | 0 |
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| 1933 | 26.8 | 91 | 36.9 | 63 | 16.7 | 104 | 1.33 | 83 | 0 |
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| 1932 | 36.4 | 8 | 45.9 | 6 | 26.9 | 20 | 1.40 | 78 | 1 |
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| 1931 | 36.7 | 6 | 44.6 | 12 | 28.8 | 9 | 0.83 | 109 | 0 |
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| 1930 | 38.4 | 4 | 46.7 | 3 | 30.1 | 2 | 2.10 | 39 | 0 |
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| 1929 | 21.2 | 122 | 29.7 | 124 | 12.6 | 125 | 0.58 | 122 | 0 |
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| 1928 | 32.2 | 35 | 39.8 | 39 | 24.5 | 33 | 1.73 | 57 | 1 |
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| 1927 | 36.1 | 10 | 43.9 | 14 | 28.3 | 11 | 2.85 | 17 | 0 |
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| 1926 | 33.4 | 27 | 39.9 | 38 | 27 | 18 | 2.42 | 33 | 0 |
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| 1925 | 33.1 | 30 | 42 | 24 | 24.2 | 36 | 1.99 | 41 | 0 |
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| 1924 | 27.4 | 81 | 34.5 | 91 | 20.4 | 63 | 1.64 | 66 | 1 |
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| 1923 | 23.2 | 117 | 31 | 116 | 15.4 | 114 | 0.83 | 109 | 0 |
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| 1922 | 29.9 | 50 | 39.3 | 43 | 20.6 | 59 | 1.98 | 42 | 0 |
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| 1921 | 34.4 | 23 | 41.9 | 25 | 27 | 18 | 0.29 | 136 | 0 |
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| 1920 | 27.8 | 75 | 35.2 | 85 | 20.5 | 61 | 0.27 | 138 | 1 |
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| 1919 | 30.8 | 46 | 38.9 | 46 | 22.7 | 48 | 2.32 | 36 | 0 |
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| 1918 | 27.9 | 72 | 38.3 | 48 | 17.4 | 97 | 1.64 | 66 | 0 |
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| 1917 | 20.9 | 125 | 30.7 | 120 | 11 | 131 | 0.27 | 138 | 0 |
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| 1916 | 24.3 | 108 | 32.3 | 110 | 16.4 | 106 | 0.29 | 136 | 1 |
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| 1915 | 35.4 | 16 | 41.6 | 27 | 29.2 | 6 | 2.71 | 24 | 0 |
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| 1914 | 19.3 | 131 | 28 | 129 | 10.6 | 133 | 1.36 | 80 | 0 |
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| 1913 | 24.4 | 106 | 33.3 | 101 | 15.5 | 113 | 3.00 | 13 | 0 |
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| 1912 | 21 | 124 | 28.4 | 127 | 13.6 | 121 | 1.21 | 88 | 1 |
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| 1911 | 32.3 | 33 | 40.3 | 35 | 24.3 | 35 | 2.39 | 35 | 0 |
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| 1910 | 23.8 | 111 | 32.9 | 104 | 14.6 | 118 | 1.10 | 95 | 0 |
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| 1909 | 31.9 | 37 | 41.1 | 30 | 22.6 | 49 | 3.67 | 6 | 0 |
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| 1908 | 26.9 | 85 | 34 | 95 | 19.7 | 75 | 3.67 | 6 | 1 |
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| 1907 | 28.3 | 68 | 36.9 | 63 | 19.7 | 75 | 0.14 | 140 | 0 |
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| 1906 | 26.9 | 85 | 35.9 | 81 | 18 | 93 | 1.85 | 50 | 0 |
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| 1905 | 15.1 | 139 | 24.4 | 139 | 5.9 | 141 | 1.45 | 76 | 0 |
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| 1904 | 22.9 | 119 | 30 | 121 | 15.9 | 110 | 1.29 | 84 | 0 |
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| 1903 | 26.9 | 85 | 34.4 | 92 | 19.5 | 77 | 1.70 | 60 | 0 |
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| 1902 | 21.1 | 123 | 30 | 121 | 11.9 | 129 | 1.41 | 77 | 1 |
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| 1901 | | | 27.7 | 131 | | | 1.24 | 85 | 3 |
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| 1899 | 20.4 | 126 | 28.1 | 128 | 12.8 | 123 | 1.96 | 45 | 0 |
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| 1898 | 31.1 | 44 | 37.6 | 56 | 24.7 | 32 | 1.69 | 61 | 0 |
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| 1897 | 31.8 | 39 | 37.4 | 59 | 26.2 | 22 | 1.19 | 89 | 0 |
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| 1896 | 30 | 48 | 36.4 | 71 | 23.6 | 39 | 1.95 | 46 | 0 |
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| 1895 | 18.9 | 132 | 27.6 | 134 | 10.1 | 134 | 0.37 | 134 | 0 |
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| 1894 | 26.6 | 94 | 34.1 | 94 | 19.1 | 82 | 1.48 | 75 | 0 |
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| 1893 | | | 33.5 | 98 | 16.9 | 100 | | | 4 |
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| 1892 | 34.9 | 19 | 40.1 | 36 | 29.8 | 3 | 1.84 | 51 | 0 |
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| 1891 | 31.4 | 41 | 39.3 | 43 | 23.6 | 39 | 1.90 | 47 | 0 |
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| 1890 | 35.5 | 15 | 41.7 | 26 | 29.2 | 6 | 1.36 | 80 | 0 |
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| 1889 | 25.1 | 101 | 32.4 | 109 | 17.8 | 95 | 0.84 | 107 | 0 |
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| 1888 | 27 | 83 | 33.9 | 96 | 20 | 67 | 1.66 | 64 | 0 |
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| 1887 | 32.2 | 35 | 38 | 52 | 26.4 | 21 | 5.45 | 1 | 0 |
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| 1886 | 28.6 | 64 | 34.8 | 90 | 22.3 | 51 | 1.86 | 48 | 0 |
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| 1885 | 15.3 | 138 | 23.4 | 142 | 7.1 | 138 | | | 0 |
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| 1884 | 28.6 | 64 | 34.2 | 93 | 22.9 | 46 | | | 0 |
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| 1883 | 23.4 | 116 | 30.9 | 117 | 16 | 109 | 3.59 | 8 | 0 |
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