Every March 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 | 37 | 15 | 50.4 | 12 | 23.2 | 26 | 0.97 | 23 | 1 |
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| 2025 | 39.6 | 6 | 51.8 | 9 | 27.4 | 5 | 0.16 | 109 | 0 |
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| 2024 | 27.7 | 67 | 37.6 | 77 | 17.9 | 60 | 1.02 | 20 | 0 |
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| 2023 | 16.8 | 119 | 25.8 | 121 | 7.7 | 117 | 1.06 | 19 | 0 |
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| 2022 | 32.8 | 37 | 45.6 | 29 | 20 | 45 | 0.26 | 94 | 0 |
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| 2021 | 39.4 | 7 | 53.6 | 2 | 25.2 | 15 | 0.21 | 100 | 0 |
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| 2020 | 33.4 | 32 | 42.9 | 45 | 23.9 | 21 | 0.40 | 68 | 0 |
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| 2019 | 22.6 | 99 | 32.8 | 103 | 12.4 | 98 | 0.19 | 105 | 0 |
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| 2018 | 23.9 | 94 | 31.8 | 108 | 16.1 | 72 | 1.27 | 10 | 0 |
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| 2017 | 34 | 27 | 45.2 | 33 | 22.8 | 28 | 0.49 | 56 | 0 |
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| 2016 | 39.8 | 5 | 52.5 | 6 | 27.2 | 6 | 0.53 | 52 | 0 |
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| 2015 | 39.9 | 4 | 53.3 | 3 | 26.5 | 8 | 0.75 | 31 | 0 |
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| 2014 | 27.5 | 71 | 37.8 | 76 | 17.1 | 65 | 0.71 | 34 | 0 |
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| 2013 | 24.3 | 92 | 34.6 | 89 | 13.9 | 91 | 1.00 | 21 | 0 |
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| 2012 | 42.2 | 1 | 55.5 | 1 | 28.9 | 2 | 0.41 | 67 | 0 |
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| 2011 | 19.9 | 111 | 26.9 | 120 | 13 | 96 | 0.52 | 54 | 0 |
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| 2010 | 32.9 | 36 | 43.3 | 44 | 22.5 | 30 | 0.14 | 112 | 0 |
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| 2009 | 25.5 | 84 | 36.7 | 80 | 14.2 | 85 | 0.10 | 119 | 0 |
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| 2008 | 32.8 | 37 | 45.4 | 30 | 20.1 | 44 | 0.27 | 87 | 0 |
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| 2007 | 39.1 | 9 | 51.6 | 10 | 26.5 | 8 | 0.09 | 122 | 0 |
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| 2006 | 30.4 | 50 | 39.2 | 69 | 21.6 | 32 | 0.22 | 97 | 0 |
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| 2005 | 35.5 | 20 | 46.5 | 25 | 24.5 | 19 | 0.61 | 44 | 0 |
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| 2004 | 34.1 | 26 | 44.9 | 34 | 23.3 | 25 | 0.20 | 101 | 0 |
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| 2003 | 26.3 | 80 | 38.4 | 74 | 14.2 | 85 | 0.44 | 63 | 0 |
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| 2002 | 13.1 | 121 | 23.4 | 124 | 2.8 | 122 | 0.40 | 68 | 0 |
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| 2001 | 32.6 | 39 | 43.7 | 40 | 21.6 | 32 | 0.05 | 125 | 0 |
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| 2000 | 36.3 | 16 | 48.8 | 18 | 23.8 | 22 | 0.54 | 48 | 0 |
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| 1999 | 35.3 | 21 | 45.7 | 28 | 24.9 | 17 | 0.28 | 86 | 0 |
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| 1998 | 27.4 | 73 | 36.8 | 79 | 18 | 58 | 0.73 | 32 | 0 |
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| 1997 | 27.1 | 75 | 37.4 | 78 | 16.9 | 66 | 0.49 | 56 | 0 |
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| 1996 | 18.9 | 114 | 28.2 | 117 | 9.5 | 112 | 0.33 | 79 | 0 |
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| 1995 | 29.5 | 57 | 40.7 | 58 | 18.3 | 57 | 0.84 | 27 | 0 |
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| 1994 | 36.3 | 16 | 47.2 | 23 | 25.3 | 14 | 0.16 | 109 | 0 |
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| 1993 | 34.4 | 25 | 44.6 | 36 | 24.1 | 20 | 0.82 | 30 | 0 |
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| 1992 | 39.3 | 8 | 52.8 | 5 | 25.8 | 12 | 0.45 | 61 | 0 |
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| 1991 | 33.7 | 28 | 45.9 | 26 | 21.6 | 32 | 0.62 | 43 | 0 |
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| 1990 | 35.3 | 21 | 47.9 | 21 | 22.6 | 29 | 0.29 | 84 | 0 |
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| 1989 | 22.9 | 97 | 31.7 | 109 | 14 | 90 | 0.36 | 72 | 0 |
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| 1988 | 35.6 | 18 | 47.6 | 22 | 23.5 | 24 | 0.22 | 97 | 0 |
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| 1987 | 33.3 | 33 | 41.5 | 52 | 25.1 | 16 | 1.27 | 10 | 0 |
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| 1986 | 40.4 | 2 | 50.7 | 11 | 30.1 | 1 | 0.32 | 80 | 0 |
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| 1985 | 33.6 | 29 | 45.3 | 31 | 21.8 | 31 | 0.27 | 87 | 0 |
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| 1984 | 31.9 | 45 | 40.7 | 58 | 23 | 27 | 0.68 | 39 | 0 |
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| 1983 | 33.6 | 29 | 40.5 | 61 | 26.6 | 7 | 0.39 | 70 | 0 |
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| 1982 | 24.5 | 88 | 32.2 | 105 | 16.9 | 66 | 0.72 | 33 | 0 |
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| 1981 | 38.9 | 10 | 52.9 | 4 | 24.9 | 17 | 0.31 | 81 | 0 |
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| 1980 | 27.9 | 65 | 39 | 71 | 16.7 | 69 | 0.36 | 72 | 0 |
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| 1979 | 23.3 | 95 | 32.1 | 106 | 14.6 | 83 | 0.43 | 64 | 0 |
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| 1978 | 24.5 | 88 | 33.2 | 100 | 15.7 | 74 | 0.25 | 95 | 0 |
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| 1977 | 33.5 | 31 | 45.9 | 26 | 21.2 | 38 | 0.11 | 118 | 0 |
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| 1976 | 29.3 | 60 | 41.3 | 55 | 17.3 | 63 | 0.30 | 82 | 0 |
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| 1975 | 24.6 | 86 | 35.1 | 88 | 14.2 | 85 | 0.61 | 44 | 0 |
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| 1974 | 29.6 | 56 | 40 | 65 | 19.2 | 54 | 0.93 | 24 | 0 |
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| 1973 | 38.9 | 10 | 52.2 | 7 | 25.7 | 13 | 0.27 | 87 | 0 |
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| 1972 | 30.3 | 51 | 40.6 | 60 | 20 | 45 | 0.50 | 55 | 0 |
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| 1971 | 24.5 | 88 | 33.6 | 95 | 15.5 | 76 | 0.27 | 87 | 0 |
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| 1970 | 24.4 | 91 | 33.5 | 96 | 15.3 | 78 | 0.27 | 87 | 0 |
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| 1969 | 18.3 | 115 | 28.2 | 117 | 8.4 | 114 | 0.17 | 107 | 0 |
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| 1968 | 38.1 | 12 | 50.3 | 13 | 25.9 | 11 | 0.10 | 119 | 0 |
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| 1967 | 21.7 | 105 | 31.4 | 110 | 12.1 | 101 | 0.83 | 28 | 0 |
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| 1966 | 32 | 43 | 43.5 | 42 | 20.4 | 41 | 0.10 | 119 | 0 |
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| 1965 | 10.4 | 123 | 21.2 | 127 | -0.3 | 125 | 0.30 | 82 | 0 |
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| 1964 | 24 | 93 | 35.8 | 86 | 12.3 | 99 | 0.61 | 44 | 0 |
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| 1963 | 37.9 | 13 | 49.2 | 15 | 26.5 | 8 | 0.27 | 87 | 0 |
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| 1962 | 19.3 | 113 | 28.9 | 115 | 9.7 | 110 | 0.55 | 47 | 0 |
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| 1961 | 37.8 | 14 | 48 | 20 | 27.5 | 4 | 0.35 | 75 | 0 |
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| 1960 | 22.8 | 98 | 33.7 | 93 | 11.9 | 102 | 0.27 | 87 | 0 |
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| 1959 | 32 | 43 | 42.5 | 47 | 21.5 | 35 | 0.14 | 112 | 0 |
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| 1958 | 27.4 | 73 | 35.3 | 87 | 19.5 | 50 | 0.29 | 84 | 0 |
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| 1957 | 29.5 | 57 | 39.2 | 69 | 19.8 | 49 | 0.05 | 125 | 0 |
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| 1956 | 26.2 | 81 | 38.7 | 73 | 13.7 | 93 | 0.13 | 115 | 0 |
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| 1955 | 21.8 | 104 | 33.5 | 96 | 10.1 | 106 | 0.54 | 48 | 0 |
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| 1954 | 23 | 96 | 33.2 | 100 | 12.7 | 97 | 1.37 | 6 | 0 |
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| 1953 | 29.7 | 54 | 41.5 | 52 | 18 | 58 | 0.64 | 41 | 0 |
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| 1952 | 18 | 116 | 28.8 | 116 | 7.1 | 119 | 0.49 | 56 | 0 |
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| 1951 | 12.7 | 122 | 23.8 | 123 | 1.6 | 123 | 0.54 | 48 | 0 |
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| 1950 | 19.9 | 111 | 30.2 | 111 | 9.7 | 110 | 0.83 | 28 | 0 |
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| 1949 | 28.7 | 61 | 41 | 56 | 16.4 | 71 | 0.20 | 101 | 0 |
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| 1948 | 25.6 | 83 | 38.1 | 75 | 13.2 | 95 | 0.53 | 52 | 0 |
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| 1947 | 22.3 | 103 | 34.5 | 90 | 10 | 107 | 0.49 | 56 | 1 |
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| 1946 | 40.2 | 3 | 52.2 | 7 | 28.1 | 3 | 0.43 | 64 | 0 |
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| 1945 | 35.2 | 23 | 48.9 | 16 | 21.4 | 36 | 1.25 | 12 | 0 |
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| 1944 | 21.1 | 106 | 32.3 | 104 | 10 | 107 | 1.25 | 12 | 0 |
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| 1943 | 20.2 | 108 | 33.1 | 102 | 7.4 | 118 | 0.63 | 42 | 0 |
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| 1942 | 32.4 | 40 | 44.6 | 36 | 20.3 | 42 | 0.46 | 60 | 0 |
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| 1941 | 31.5 | 48 | 43.6 | 41 | 19.4 | 51 | 0.37 | 71 | 0 |
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| 1940 | 26.6 | 78 | 36.5 | 83 | 16.8 | 68 | 0.69 | 37 | 0 |
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| 1939 | 28.7 | 61 | 42.3 | 48 | 15.1 | 79 | 0.15 | 111 | 0 |
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| 1938 | 31.9 | 45 | 43.5 | 42 | 20.3 | 42 | 1.25 | 12 | 0 |
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| 1937 | 27.6 | 70 | 39.5 | 67 | 15.6 | 75 | 0.54 | 48 | 0 |
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| 1936 | 27.5 | 71 | 39.3 | 68 | 15.8 | 73 | 0.43 | 64 | 0 |
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| 1935 | 26 | 82 | 36.7 | 80 | 14.2 | 85 | 1.16 | 17 | 1 |
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| 1934 | 31.7 | 47 | 44.2 | 38 | 19.4 | 51 | 0.36 | 72 | 2 |
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| 1933 | 34.9 | 24 | 48.2 | 19 | 21.2 | 38 | 0.20 | 101 | 1 |
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| 1932 | 22.4 | 101 | 33.7 | 93 | 11 | 105 | 0.93 | 24 | 0 |
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| 1931 | 29.7 | 54 | 42.6 | 46 | 16.7 | 69 | 0.35 | 75 | 0 |
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| 1930 | 30.9 | 49 | 44.7 | 35 | 17.2 | 64 | 0.02 | 128 | 0 |
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| 1929 | 35.6 | 18 | 49.8 | 14 | 21.4 | 36 | 0.70 | 36 | 0 |
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| 1928 | 32.4 | 40 | 43.9 | 39 | 20.9 | 40 | 0.34 | 78 | 0 |
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| 1927 | 30.1 | 52 | 40.4 | 62 | 19.3 | 53 | 1.25 | 12 | 1 |
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| 1926 | 33.3 | 33 | 46.8 | 24 | 19.9 | 47 | 0.07 | 124 | 0 |
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| 1925 | 27.7 | 67 | 40 | 65 | 15.4 | 77 | 1.48 | 4 | 0 |
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| 1924 | 27.9 | 65 | 36.5 | 83 | 18.9 | 56 | 0.22 | 97 | 3 |
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| 1923 | 27 | 77 | 40.1 | 64 | 13.9 | 91 | 0.12 | 117 | 0 |
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| 1922 | 22.5 | 100 | 33.5 | 96 | 11.6 | 103 | 0.45 | 61 | 0 |
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| 1921 | 27.7 | 67 | 40.8 | 57 | 14.7 | 81 | 0.98 | 22 | 0 |
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| 1920 | 26.5 | 79 | 38.9 | 72 | 14.2 | 85 | 0.35 | 75 | 0 |
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| 1919 | 13.5 | 120 | 25.4 | 122 | 1.6 | 123 | 0.24 | 96 | 0 |
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| 1918 | 32.2 | 42 | 45.3 | 31 | 19.1 | 55 | 0.09 | 122 | 0 |
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| 1917 | 17.3 | 117 | 29.7 | 113 | 4.9 | 120 | 0.71 | 34 | 0 |
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| 1916 | 24.6 | 86 | 34.4 | 91 | 14.7 | 81 | 1.34 | 8 | 1 |
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| 1915 | 24.8 | 85 | 35.9 | 85 | 13.6 | 94 | 0.17 | 107 | 1 |
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| 1913 | 20.8 | 107 | 33.3 | 99 | 8.4 | 114 | 0.69 | 37 | 0 |
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| 1912 | 10.3 | 124 | 23.2 | 125 | -2.6 | 126 | 0.04 | 127 | 0 |
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| 1911 | | | | | | | 0.13 | 115 | 17 |
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| 1908 | 27.1 | 75 | 41.9 | 49 | 12.3 | 99 | 1.31 | 9 | 0 |
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| 1907 | 20.2 | 108 | 29.3 | 114 | 11.1 | 104 | 1.08 | 18 | 0 |
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| 1906 | | | 34.2 | 92 | 9.8 | 109 | 0.14 | 112 | 4 |
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| 1905 | | | | | 23.7 | 23 | 0.65 | 40 | 8 |
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| 1904 | | | 27.9 | 119 | | | 4.06 | 2 | 8 |
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| 1903 | 22.4 | 101 | 36.6 | 82 | 8.6 | 113 | 0.18 | 106 | 2 |
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| 1902 | 29.8 | 53 | 40.3 | 63 | 19.9 | 47 | 1.24 | 16 | 2 |
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| 1901 | 33.1 | 35 | 48.9 | 16 | 17.6 | 61 | trace | 129 | 2 |
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| 1900 | 29.4 | 59 | 41.5 | 52 | 17.4 | 62 | 1.47 | 5 | 0 |
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| 1899 | 6.8 | 126 | 21.8 | 126 | -8.2 | 128 | 1.35 | 7 | 0 |
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| 1898 | 17.3 | 117 | 30.1 | 112 | 4.5 | 121 | 4.50 | 1 | 0 |
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| 1897 | 7.7 | 125 | 20.9 | 128 | -5.5 | 127 | 2.50 | 3 | 0 |
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| 1896 | 20.1 | 110 | 32.1 | 106 | 8.2 | 116 | 0.86 | 26 | 0 |
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| 1895 | 28.3 | 63 | 41.6 | 51 | 14.9 | 80 | 0.20 | 101 | 0 |
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| 1894 | 28.1 | 64 | 41.7 | 50 | 14.5 | 84 | | | 0 |
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