Every spring in Glasgow, MT from 1894 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 | 45.6 | 25 | 59.3 | 21 | 31.7 | 40 | 5.14 | 18 | 1 |
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| 2025 | 47.7 | 8 | 60.8 | 12 | 34.6 | 4 | 1.87 | 103 | 0 |
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| 2024 | 44.1 | 48 | 55.7 | 61 | 32.5 | 28 | 4.49 | 28 | 0 |
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| 2023 | 39.9 | 97 | 50.4 | 109 | 29.4 | 71 | 5.76 | 14 | 0 |
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| 2022 | 42.5 | 66 | 55.1 | 69 | 30 | 63 | 3.31 | 51 | 0 |
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| 2021 | 45.8 | 23 | 59.2 | 22 | 32.4 | 30 | 2.19 | 94 | 0 |
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| 2020 | 43.7 | 54 | 55.6 | 64 | 31.9 | 38 | 4.07 | 35 | 0 |
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| 2019 | 40.6 | 89 | 52.3 | 94 | 29 | 82 | 2.26 | 92 | 0 |
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| 2018 | 42.1 | 74 | 53 | 86 | 31.2 | 46 | 3.16 | 61 | 0 |
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| 2017 | 45.3 | 28 | 58.3 | 32 | 32.3 | 33 | 1.59 | 112 | 0 |
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| 2016 | 47.5 | 10 | 60.5 | 15 | 34.6 | 4 | 7.60 | 5 | 0 |
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| 2015 | 46.5 | 17 | 59.8 | 17 | 33.1 | 19 | 3.26 | 54 | 0 |
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| 2014 | 41.6 | 79 | 54.1 | 73 | 29.1 | 80 | 3.04 | 66 | 0 |
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| 2013 | 40 | 95 | 51.5 | 102 | 28.5 | 93 | 6.61 | 10 | 0 |
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| 2012 | 47.6 | 9 | 60.6 | 13 | 34.7 | 3 | 4.82 | 23 | 0 |
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| 2011 | 37.3 | 112 | 46.3 | 120 | 28.4 | 97 | 7.95 | 1 | 0 |
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| 2010 | 43 | 58 | 54.6 | 72 | 31.4 | 44 | 5.05 | 20 | 0 |
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| 2009 | 40.7 | 85 | 53.4 | 79 | 27.9 | 99 | 2.46 | 84 | 0 |
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| 2008 | 42.7 | 63 | 55.7 | 61 | 29.7 | 67 | 4.57 | 27 | 0 |
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| 2007 | 46.2 | 18 | 58.7 | 25 | 33.8 | 11 | 7.76 | 3 | 0 |
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| 2006 | 45.7 | 24 | 57.7 | 40 | 33.8 | 11 | 3.26 | 54 | 0 |
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| 2005 | 45.2 | 31 | 57.5 | 43 | 32.8 | 23 | 2.80 | 72 | 0 |
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| 2004 | 44.1 | 48 | 56.1 | 56 | 32.2 | 35 | 3.94 | 40 | 0 |
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| 2003 | 42.8 | 61 | 55.3 | 65 | 30.4 | 57 | 3.38 | 49 | 0 |
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| 2002 | 33.7 | 122 | 46 | 121 | 21.4 | 123 | 2.17 | 95 | 0 |
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| 2001 | 44.9 | 35 | 58 | 39 | 31.7 | 40 | 1.39 | 121 | 0 |
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| 2000 | 45.5 | 27 | 58.6 | 28 | 32.5 | 28 | 4.15 | 33 | 0 |
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| 1999 | 44.5 | 43 | 55.7 | 61 | 33.3 | 17 | 4.88 | 22 | 0 |
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| 1998 | 44.3 | 45 | 56.6 | 51 | 32 | 36 | 3.17 | 60 | 0 |
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| 1997 | 40.3 | 91 | 51.9 | 98 | 28.8 | 85 | 3.10 | 64 | 0 |
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| 1996 | 37 | 113 | 47.6 | 116 | 26.5 | 108 | 2.00 | 99 | 0 |
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| 1995 | 40.2 | 93 | 51.8 | 99 | 28.7 | 88 | 3.07 | 65 | 0 |
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| 1994 | 46.2 | 18 | 58.3 | 32 | 34.1 | 9 | 2.85 | 70 | 0 |
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| 1993 | 46 | 21 | 58.3 | 32 | 33.6 | 15 | 1.75 | 108 | 0 |
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| 1992 | 47.8 | 7 | 61.7 | 9 | 33.8 | 11 | 1.51 | 118 | 0 |
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| 1991 | 45.2 | 31 | 56.7 | 50 | 33.8 | 11 | 3.20 | 59 | 0 |
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| 1990 | 44.8 | 37 | 57.7 | 40 | 31.9 | 38 | 1.94 | 100 | 0 |
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| 1989 | 40.5 | 90 | 51.3 | 103 | 29.7 | 67 | 4.07 | 35 | 0 |
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| 1988 | 48.3 | 3 | 62.4 | 4 | 34.3 | 7 | 1.88 | 102 | 0 |
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| 1987 | 48.4 | 2 | 59.8 | 17 | 36.9 | 1 | 3.45 | 48 | 0 |
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| 1986 | 46.6 | 16 | 58.2 | 35 | 35.1 | 2 | 3.22 | 58 | 0 |
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| 1985 | 47 | 13 | 59.6 | 20 | 34.4 | 6 | 3.52 | 47 | 0 |
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| 1984 | 44.9 | 35 | 57 | 48 | 32.9 | 21 | 1.56 | 116 | 0 |
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| 1983 | 42.8 | 61 | 53.3 | 80 | 32.3 | 33 | 2.08 | 97 | 0 |
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| 1982 | 38.8 | 107 | 48.3 | 115 | 29.2 | 78 | 4.68 | 26 | 0 |
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| 1981 | 47.9 | 6 | 61.5 | 10 | 34.3 | 7 | 2.63 | 79 | 0 |
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| 1980 | 46.9 | 14 | 60.5 | 15 | 33.3 | 17 | 1.04 | 122 | 0 |
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| 1979 | 36.6 | 117 | 46 | 121 | 27.3 | 102 | 4.16 | 32 | 0 |
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| 1978 | 41 | 84 | 51.1 | 105 | 30.8 | 52 | 4.41 | 29 | 0 |
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| 1977 | 46.7 | 15 | 60.6 | 13 | 32.8 | 23 | 2.11 | 96 | 0 |
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| 1976 | 45 | 34 | 58.5 | 30 | 31.6 | 42 | 1.54 | 117 | 0 |
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| 1975 | 37.8 | 111 | 47.5 | 117 | 28 | 98 | 3.84 | 42 | 0 |
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| 1974 | 42.5 | 66 | 54 | 75 | 31.1 | 49 | 4.69 | 25 | 0 |
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| 1973 | 45.6 | 25 | 58.6 | 28 | 32.7 | 25 | 2.05 | 98 | 0 |
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| 1972 | 43.4 | 57 | 54.7 | 70 | 32 | 36 | 4.07 | 35 | 0 |
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| 1971 | 41.7 | 76 | 53.3 | 80 | 30.2 | 60 | 1.60 | 111 | 0 |
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| 1970 | 39.3 | 103 | 49.2 | 112 | 29.4 | 71 | 3.66 | 45 | 0 |
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| 1969 | 39.8 | 99 | 51.7 | 100 | 27.9 | 99 | 2.41 | 86 | 0 |
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| 1968 | 44.1 | 48 | 57.2 | 45 | 30.9 | 51 | 1.00 | 123 | 0 |
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| 1967 | 36.5 | 118 | 47.1 | 118 | 26 | 110 | 2.35 | 89 | 0 |
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| 1966 | 41.7 | 76 | 54 | 75 | 29.4 | 71 | 2.60 | 81 | 0 |
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| 1965 | 35 | 119 | 45.6 | 123 | 24.4 | 116 | 4.06 | 38 | 0 |
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| 1964 | 41.9 | 75 | 53.7 | 77 | 30 | 63 | 3.54 | 46 | 0 |
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| 1963 | 44.7 | 38 | 55.9 | 58 | 33.5 | 16 | 2.62 | 80 | 0 |
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| 1962 | 39.9 | 97 | 50.9 | 106 | 28.9 | 84 | 3.26 | 54 | 0 |
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| 1961 | 44.6 | 40 | 56.2 | 54 | 33.1 | 19 | 1.94 | 100 | 0 |
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| 1960 | 40.1 | 94 | 51.6 | 101 | 28.7 | 88 | 2.42 | 85 | 0 |
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| 1959 | 41.7 | 76 | 53.6 | 78 | 29.8 | 66 | 1.74 | 109 | 0 |
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| 1958 | 44.6 | 40 | 56.2 | 54 | 32.9 | 21 | 0.90 | 124 | 0 |
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| 1957 | 42.5 | 66 | 54.1 | 73 | 31 | 50 | 2.38 | 88 | 0 |
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| 1956 | 40 | 95 | 52.7 | 89 | 27.3 | 102 | 2.49 | 83 | 0 |
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| 1955 | 40.7 | 85 | 52.7 | 89 | 28.7 | 88 | 6.27 | 12 | 0 |
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| 1954 | 38.2 | 109 | 50.2 | 110 | 26.1 | 109 | 5.14 | 18 | 0 |
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| 1953 | 39.8 | 99 | 51.2 | 104 | 28.5 | 93 | 7.19 | 7 | 0 |
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| 1952 | 42.2 | 71 | 55.3 | 65 | 29.1 | 80 | 2.78 | 77 | 0 |
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| 1951 | 36.8 | 115 | 49.6 | 111 | 24 | 119 | 2.86 | 69 | 0 |
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| 1950 | 37 | 113 | 48.5 | 114 | 25.6 | 113 | 2.80 | 72 | 0 |
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| 1949 | 47.2 | 12 | 61.9 | 6 | 32.6 | 27 | 1.59 | 112 | 0 |
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| 1948 | 42.6 | 64 | 56 | 57 | 29.3 | 75 | 4.70 | 24 | 0 |
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| 1947 | 40.3 | 91 | 53.1 | 85 | 27.4 | 101 | 2.80 | 72 | 1 |
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| 1946 | 48.5 | 1 | 62.8 | 3 | 34.1 | 9 | 1.57 | 115 | 0 |
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| 1945 | 42.4 | 70 | 55.9 | 58 | 29 | 82 | 3.27 | 52 | 0 |
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| 1944 | 42.9 | 60 | 55.3 | 65 | 30.5 | 55 | 3.03 | 67 | 0 |
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| 1943 | 40.7 | 85 | 54.7 | 70 | 26.8 | 105 | 1.72 | 110 | 0 |
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| 1942 | 43.6 | 56 | 57.2 | 45 | 30.1 | 61 | 2.90 | 68 | 0 |
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| 1941 | 45.3 | 28 | 58.1 | 37 | 32.4 | 30 | 2.65 | 78 | 1 |
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| 1940 | 41.4 | 81 | 53.3 | 80 | 29.6 | 69 | 7.18 | 8 | 1 |
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| 1939 | 45.1 | 33 | 59.7 | 19 | 30.4 | 57 | 3.89 | 41 | 0 |
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| 1938 | 42.6 | 64 | 56.6 | 51 | 28.7 | 88 | 3.82 | 43 | 2 |
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| 1937 | 44.2 | 47 | 57.3 | 44 | 31.2 | 46 | 1.49 | 119 | 1 |
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| 1936 | 43.8 | 52 | 58.1 | 37 | 29.5 | 70 | 2.29 | 91 | 0 |
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| 1935 | 39.7 | 101 | 52.2 | 95 | 26.7 | 106 | 2.51 | 82 | 1 |
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| 1934 | 48 | 5 | 63.2 | 2 | 32.7 | 25 | 1.46 | 120 | 3 |
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| 1933 | 43.8 | 52 | 56.9 | 49 | 30.5 | 55 | 3.27 | 52 | 1 |
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| 1932 | 42.5 | 66 | 55.9 | 58 | 29.4 | 71 | 4.15 | 33 | 1 |
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| 1931 | 45.3 | 28 | 61.8 | 8 | 28.8 | 85 | 0.65 | 125 | 0 |
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| 1930 | 46.2 | 18 | 61 | 11 | 31.4 | 44 | 2.82 | 71 | 0 |
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| 1929 | 43.7 | 54 | 58.8 | 24 | 28.5 | 93 | 2.39 | 87 | 1 |
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| 1928 | 44.7 | 38 | 58.7 | 25 | 30.6 | 54 | 1.76 | 106 | 0 |
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| 1927 | 42.2 | 71 | 53.3 | 80 | 30.8 | 52 | 7.58 | 6 | 1 |
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| 1926 | 46 | 21 | 61.9 | 6 | 30 | 63 | 1.76 | 106 | 0 |
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| 1925 | 44.3 | 45 | 58.4 | 31 | 30.1 | 61 | 3.68 | 44 | 1 |
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| 1924 | 41.2 | 82 | 53.2 | 84 | 28.5 | 93 | 3.13 | 63 | 4 |
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| 1923 | 41.6 | 79 | 56.5 | 53 | 26.7 | 106 | 3.16 | 61 | 0 |
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| 1922 | 40.7 | 85 | 52.2 | 95 | 29.3 | 75 | 5.82 | 13 | 0 |
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| 1921 | 42.2 | 71 | 55.2 | 68 | 29.3 | 75 | 4.32 | 30 | 0 |
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| 1920 | 39.7 | 101 | 52.1 | 97 | 27.3 | 102 | 2.79 | 76 | 0 |
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| 1919 | 39.2 | 104 | 52.7 | 89 | 25.6 | 113 | 2.30 | 90 | 0 |
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| 1918 | 43 | 58 | 57.2 | 45 | 28.8 | 85 | 1.58 | 114 | 0 |
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| 1917 | 36.8 | 115 | 49.1 | 113 | 24.4 | 116 | 2.23 | 93 | 0 |
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| 1916 | 39.2 | 104 | 52.5 | 93 | 25.8 | 112 | 3.97 | 39 | 1 |
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| 1915 | 44.6 | 40 | 57.7 | 40 | 31.2 | 46 | 4.97 | 21 | 1 |
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| 1914 | | | | | | | | | 61 |
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| 1913 | 39.1 | 106 | 52.7 | 89 | 25.6 | 113 | 2.80 | 72 | 0 |
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| 1912 | 34.8 | 120 | 46.5 | 119 | 23 | 121 | 5.29 | 17 | 0 |
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| 1911 | | | | | | | | | 48 |
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| 1908 | | | | | | | | | 61 |
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| 1907 | 33.9 | 121 | 44.2 | 124 | 24.4 | 116 | 3.25 | 57 | 4 |
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| 1906 | 41.1 | 83 | 52.9 | 87 | 28.6 | 92 | 7.75 | 4 | 6 |
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| 1905 | | | | | | | | | 69 |
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| 1904 | | | 50.8 | 107 | 23 | 121 | 5.51 | 16 | 10 |
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| 1903 | | | 58.2 | 35 | | | 5.65 | 15 | 12 |
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| 1902 | | | | | | | | | 33 |
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| 1901 | 48.2 | 4 | 65.1 | 1 | 31.5 | 43 | 1.77 | 105 | 3 |
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| 1900 | 47.4 | 11 | 62.3 | 5 | 32.4 | 30 | 4.25 | 31 | 0 |
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| 1899 | 30.1 | 123 | 43.6 | 125 | 16.5 | 124 | 7.93 | 2 | 0 |
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| 1898 | | | | | | | 6.51 | 11 | 13 |
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| 1897 | 38.1 | 110 | 52.8 | 88 | 23.5 | 120 | 3.37 | 50 | 0 |
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| 1896 | 38.3 | 108 | 50.8 | 107 | 25.9 | 111 | 6.70 | 9 | 0 |
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| 1895 | 44.1 | 48 | 59 | 23 | 29.2 | 78 | 1.80 | 104 | 0 |
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| 1894 | 44.5 | 43 | 58.7 | 25 | 30.3 | 59 | | | 0 |
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