Every 1 September to 9 October in Alpena, MI from 1917 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 | 58.2 | 25 | 69.7 | 28 | 46.7 | 29 | 2.33 | 88 | 0 |
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| 2025 | 59.2 | 17 | 71.4 | 15 | 47 | 22 | 1.64 | 100 | 0 |
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| 2024 | 60.7 | 8 | 74.5 | 1 | 46.9 | 23 | 1.03 | 109 | 0 |
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| 2023 | 61.2 | 5 | 72.2 | 12 | 50.3 | 3 | 1.41 | 105 | 0 |
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| 2022 | 58.1 | 29 | 70.2 | 24 | 45.9 | 39 | 2.14 | 93 | 0 |
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| 2021 | 60 | 12 | 71.3 | 16 | 48.7 | 8 | 3.32 | 59 | 0 |
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| 2020 | 54.9 | 76 | 66.2 | 76 | 43.6 | 73 | 3.18 | 61 | 0 |
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| 2019 | 58.2 | 25 | 68.7 | 38 | 47.6 | 19 | 4.37 | 35 | 0 |
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| 2018 | 59.9 | 13 | 70.7 | 20 | 49.2 | 5 | 6.42 | 11 | 0 |
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| 2017 | 61.3 | 4 | 74.4 | 2 | 48.2 | 14 | 3.64 | 52 | 0 |
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| 2016 | 62 | 1 | 72.6 | 7 | 51.4 | 1 | 4.39 | 33 | 0 |
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| 2015 | 61.2 | 5 | 71.8 | 14 | 50.5 | 2 | 1.50 | 102 | 0 |
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| 2014 | 56.1 | 56 | 66.3 | 73 | 45.8 | 41 | 5.04 | 21 | 0 |
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| 2013 | 56.6 | 46 | 69 | 35 | 44.3 | 63 | 3.95 | 50 | 0 |
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| 2012 | 55.3 | 67 | 67.6 | 55 | 43.1 | 76 | 1.91 | 97 | 0 |
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| 2011 | 56.9 | 40 | 69 | 35 | 44.7 | 54 | 4.83 | 25 | 0 |
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| 2010 | 55.4 | 64 | 66.3 | 73 | 44.6 | 55 | 4.11 | 44 | 0 |
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| 2009 | 56.3 | 52 | 67.3 | 59 | 45.2 | 47 | 4.52 | 31 | 0 |
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| 2008 | 55.6 | 60 | 66.7 | 66 | 44.6 | 55 | 4.30 | 42 | 0 |
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| 2007 | 61.8 | 2 | 74.2 | 4 | 49.4 | 4 | 1.88 | 98 | 0 |
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| 2006 | 55.1 | 73 | 66.4 | 71 | 43.9 | 70 | 4.03 | 47 | 0 |
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| 2005 | 60.8 | 7 | 73.5 | 6 | 48.1 | 15 | 2.61 | 80 | 0 |
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| 2004 | 60.5 | 9 | 74.2 | 4 | 46.8 | 25 | 1.38 | 106 | 0 |
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| 2003 | 54.8 | 79 | 66.4 | 71 | 43.3 | 75 | 2.94 | 69 | 0 |
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| 2002 | 60.5 | 9 | 72.4 | 10 | 48.6 | 10 | 2.48 | 83 | 0 |
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| 2001 | 55.4 | 64 | 65.7 | 83 | 45.2 | 47 | 6.75 | 8 | 0 |
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| 2000 | 54.8 | 79 | 65.5 | 84 | 44.1 | 66 | 4.37 | 35 | 0 |
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| 1999 | 55.3 | 67 | 68.3 | 47 | 42.3 | 83 | 2.46 | 84 | 0 |
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| 1998 | 56.9 | 40 | 68.5 | 42 | 45.2 | 47 | 6.56 | 10 | 0 |
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| 1997 | 57.5 | 33 | 68.5 | 42 | 46.6 | 30 | 3.44 | 56 | 0 |
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| 1996 | 56.9 | 40 | 67 | 64 | 46.8 | 25 | 6.16 | 12 | 0 |
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| 1995 | 54.1 | 90 | 66.1 | 81 | 42.2 | 86 | 2.34 | 87 | 0 |
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| 1994 | 57.5 | 33 | 68.8 | 37 | 46.3 | 36 | 2.39 | 86 | 0 |
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| 1993 | 50.8 | 107 | 62.4 | 106 | 39.2 | 108 | 1.95 | 96 | 0 |
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| 1992 | 54.9 | 76 | 67.5 | 58 | 42.3 | 83 | 3.31 | 60 | 0 |
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| 1991 | 54.2 | 87 | 64.7 | 95 | 43.7 | 72 | 4.32 | 39 | 0 |
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| 1990 | 55.4 | 64 | 66.5 | 69 | 44.4 | 61 | 2.61 | 80 | 0 |
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| 1989 | 53.4 | 97 | 66.5 | 69 | 40.2 | 105 | 2.22 | 90 | 0 |
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| 1988 | 55.2 | 72 | 66.2 | 76 | 44.2 | 64 | 2.64 | 78 | 0 |
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| 1987 | 56.5 | 50 | 67.1 | 62 | 45.9 | 39 | 3.98 | 49 | 0 |
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| 1986 | 55.1 | 73 | 64.7 | 95 | 45.5 | 44 | 9.12 | 2 | 0 |
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| 1985 | 56.6 | 46 | 66.7 | 66 | 46.4 | 33 | 3.49 | 55 | 0 |
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| 1984 | 52.9 | 100 | 63.8 | 101 | 41.9 | 91 | 4.04 | 46 | 0 |
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| 1983 | 57.9 | 32 | 69.6 | 30 | 46.2 | 37 | 5.42 | 17 | 0 |
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| 1982 | 56.6 | 46 | 66.3 | 73 | 46.8 | 25 | 4.10 | 45 | 0 |
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| 1981 | 51.3 | 106 | 61.1 | 109 | 41.6 | 93 | 4.48 | 32 | 0 |
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| 1980 | 54.9 | 76 | 64.5 | 97 | 45.3 | 46 | 3.10 | 62 | 0 |
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| 1979 | 56.2 | 55 | 68.3 | 47 | 44.2 | 64 | 1.46 | 103 | 0 |
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| 1978 | 56.3 | 52 | 66.2 | 76 | 46.4 | 33 | 6.77 | 7 | 0 |
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| 1977 | 55.9 | 58 | 63.3 | 104 | 48.6 | 10 | 4.94 | 23 | 0 |
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| 1976 | 55.3 | 67 | 68.3 | 47 | 42.3 | 83 | 2.12 | 94 | 0 |
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| 1975 | 52.5 | 101 | 63.6 | 103 | 41.3 | 96 | 2.19 | 92 | 0 |
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| 1974 | 50.6 | 108 | 61.7 | 108 | 39.4 | 107 | 2.76 | 73 | 0 |
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| 1973 | 56.3 | 52 | 67.3 | 59 | 45.2 | 47 | 3.69 | 51 | 0 |
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| 1972 | 54.1 | 90 | 65.5 | 84 | 42.6 | 80 | 2.73 | 76 | 0 |
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| 1971 | 59.2 | 17 | 69.8 | 27 | 48.7 | 8 | 1.44 | 104 | 0 |
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| 1970 | 57.2 | 36 | 67.8 | 53 | 46.6 | 30 | 5.09 | 20 | 0 |
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| 1969 | 55.7 | 59 | 67 | 64 | 44.4 | 61 | 2.76 | 73 | 0 |
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| 1968 | 58.5 | 22 | 68.5 | 42 | 48.5 | 12 | 7.89 | 5 | 0 |
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| 1967 | 54.6 | 83 | 67.9 | 52 | 41.3 | 96 | 2.66 | 77 | 0 |
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| 1966 | 55 | 75 | 67.2 | 61 | 42.8 | 79 | 2.74 | 75 | 0 |
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| 1965 | 53.8 | 92 | 64.5 | 97 | 43.1 | 76 | 5.26 | 18 | 0 |
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| 1964 | 53.3 | 98 | 64.9 | 93 | 41.7 | 92 | 4.37 | 35 | 0 |
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| 1963 | 54.2 | 87 | 67.7 | 54 | 40.7 | 103 | 2.30 | 89 | 0 |
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| 1962 | 54.2 | 87 | 66.2 | 76 | 42.2 | 86 | 3.35 | 57 | 0 |
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| 1961 | 59.7 | 14 | 72.4 | 10 | 46.9 | 23 | 6.11 | 14 | 0 |
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| 1960 | 54.5 | 84 | 67.6 | 55 | 41.3 | 96 | 2.82 | 72 | 0 |
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| 1959 | 58.1 | 29 | 68.5 | 42 | 47.6 | 19 | 4.57 | 30 | 0 |
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| 1958 | | | | | | | 5.01 | 22 | 9 |
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| 1957 | 55.5 | 62 | 68.6 | 39 | 42.4 | 82 | 3.00 | 65 | 0 |
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| 1956 | | | 65.1 | 91 | | | 2.44 | 85 | 4 |
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| 1955 | 58.2 | 25 | 70.6 | 21 | 45.5 | 44 | 1.21 | 108 | 2 |
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| 1954 | 57.1 | 37 | 66.2 | 76 | 48 | 16 | 8.63 | 3 | 0 |
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| 1953 | 58.5 | 22 | 72.1 | 13 | 44.9 | 53 | 5.73 | 16 | 0 |
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| 1952 | 57 | 38 | 70 | 25 | 44.1 | 66 | 0.95 | 110 | 0 |
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| 1951 | 55.3 | 67 | 65.5 | 84 | 45.1 | 51 | 6.01 | 15 | 0 |
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| 1950 | 53.7 | 94 | 65.2 | 90 | 42.2 | 86 | 4.37 | 35 | 0 |
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| 1949 | 56.6 | 46 | 68.6 | 39 | 44.6 | 55 | 3.35 | 57 | 0 |
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| 1948 | 58.7 | 21 | 72.5 | 8 | 45 | 52 | 1.33 | 107 | 0 |
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| 1947 | 59 | 19 | 71.2 | 18 | 46.8 | 25 | 4.72 | 27 | 0 |
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| 1946 | 57 | 38 | 71.3 | 16 | 42.6 | 80 | 3.57 | 53 | 0 |
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| 1945 | 54.8 | 79 | 65.5 | 84 | 44.1 | 66 | 7.13 | 6 | 0 |
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| 1944 | 56.8 | 44 | 67.1 | 62 | 46.5 | 32 | 6.75 | 8 | 0 |
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| 1943 | 54.7 | 82 | 68 | 51 | 41.5 | 94 | 1.51 | 101 | 0 |
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| 1942 | 56.4 | 51 | 68.4 | 46 | 44.5 | 58 | 4.31 | 41 | 0 |
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| 1941 | 58.2 | 25 | 69.1 | 33 | 47.4 | 21 | 4.74 | 26 | 0 |
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| 1940 | 57.4 | 35 | 68.3 | 47 | 46.4 | 33 | 4.69 | 29 | 0 |
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| 1939 | 56.9 | 40 | 69.3 | 32 | 44.5 | 58 | 2.97 | 66 | 0 |
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| 1938 | 53.8 | 92 | 65.5 | 84 | 42.1 | 89 | 2.86 | 71 | 0 |
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| 1937 | 55.6 | 60 | 66.6 | 68 | 44.5 | 58 | 10.65 | 1 | 0 |
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| 1936 | 56.8 | 44 | 69.5 | 31 | 44.1 | 66 | 4.32 | 39 | 0 |
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| 1935 | 52 | 103 | 62.8 | 105 | 41.3 | 96 | 2.91 | 70 | 0 |
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| 1934 | 55.5 | 62 | 65.3 | 89 | 45.7 | 42 | 4.17 | 43 | 0 |
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| 1933 | 58 | 31 | 69.9 | 26 | 46.1 | 38 | 5.22 | 19 | 0 |
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| 1932 | 55.3 | 67 | 68.6 | 39 | 42 | 90 | 4.01 | 48 | 0 |
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| 1931 | 61.7 | 3 | 74.3 | 3 | 49.2 | 5 | 4.89 | 24 | 0 |
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| 1930 | 56 | 57 | 69.1 | 33 | 42.9 | 78 | 2.07 | 95 | 0 |
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| 1929 | 54.4 | 86 | 67.6 | 55 | 41.1 | 100 | 2.21 | 91 | 0 |
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| 1928 | 53.2 | 99 | 64.9 | 93 | 41.5 | 94 | 4.38 | 34 | 0 |
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| 1927 | 59.3 | 16 | 69.7 | 28 | 49 | 7 | 8.16 | 4 | 0 |
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| 1926 | 53.7 | 94 | 63.7 | 102 | 43.6 | 73 | 3.06 | 63 | 0 |
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| 1925 | 54.5 | 84 | 65.1 | 91 | 43.9 | 70 | 2.95 | 68 | 0 |
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| 1924 | 52 | 103 | 64.4 | 99 | 39.5 | 106 | 2.57 | 82 | 0 |
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| 1923 | 53.6 | 96 | 66.1 | 81 | 41.1 | 100 | 1.65 | 99 | 0 |
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| 1922 | 60.1 | 11 | 72.5 | 8 | 47.7 | 17 | 2.64 | 78 | 0 |
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| 1921 | 59.4 | 15 | 70.4 | 22 | 48.4 | 13 | 6.13 | 13 | 0 |
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| 1920 | 58.3 | 24 | 71.1 | 19 | 45.6 | 43 | 4.70 | 28 | 0 |
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| 1919 | 59 | 19 | 70.3 | 23 | 47.7 | 17 | 3.03 | 64 | 0 |
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| 1918 | 51.4 | 105 | 62.4 | 106 | 40.4 | 104 | 3.55 | 54 | 0 |
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| 1917 | 52.4 | 102 | 64 | 100 | 40.9 | 102 | 2.96 | 67 | 0 |
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