Every September in Dequeen, AR from 1902 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 | 82.3 | 1 | 96.7 | 2 | 67.9 | 4 | 0.99 | 81 | 0 |
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| 2025 | 74.9 | 41 | 87.6 | 42 | 62.2 | 39 | 4.55 | 30 | 0 |
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| 2024 | 75.2 | 36 | 87.2 | 49 | 63.2 | 30 | 5.03 | 23 | 0 |
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| 2023 | 76.6 | 19 | 89 | 30 | 64.2 | 22 | 5.09 | 22 | 0 |
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| 2022 | 76.3 | 20 | 91.6 | 12 | 60.9 | 54 | 0.43 | 89 | 0 |
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| 2021 | 76.3 | 20 | 89.6 | 24 | 62.9 | 31 | 1.84 | 69 | 0 |
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| 2020 | 74.1 | 52 | 83.2 | 79 | 65 | 18 | 4.30 | 33 | 0 |
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| 2019 | 81.4 | 3 | 93.8 | 5 | 68.9 | 1 | 3.93 | 38 | 0 |
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| 2018 | 77 | 14 | 86.3 | 55 | 67.7 | 5 | 4.56 | 29 | 0 |
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| 2017 | 74.5 | 48 | 87.8 | 39 | 61.1 | 52 | 0.01 | 92 | 0 |
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| 2016 | 76.2 | 22 | 88.7 | 32 | 63.6 | 27 | 2.26 | 59 | 0 |
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| 2015 | 76.9 | 16 | 90.9 | 17 | 62.8 | 33 | 0.58 | 88 | 0 |
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| 2014 | 74.9 | 41 | 85.7 | 61 | 64 | 24 | 7.09 | 13 | 0 |
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| 2013 | 77.3 | 12 | 91.2 | 13 | 63.3 | 29 | 5.95 | 17 | 0 |
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| 2012 | 75.7 | 32 | 89.9 | 23 | 61.5 | 49 | 1.58 | 75 | 0 |
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| 2011 | 72.9 | 63 | 88.5 | 33 | 57.3 | 82 | 1.08 | 78 | 0 |
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| 2010 | 75.2 | 36 | 88.3 | 34 | 62.1 | 41 | 1.19 | 77 | 0 |
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| 2009 | 73.1 | 62 | 82.3 | 87 | 63.9 | 26 | 8.47 | 7 | 0 |
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| 2008 | 72.7 | 67 | 83.7 | 76 | 61.7 | 48 | 3.40 | 43 | 0 |
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| 2007 | 75.8 | 29 | 87.2 | 49 | 64.3 | 21 | 2.30 | 57 | 0 |
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| 2006 | 71.3 | 78 | 85.6 | 63 | 56.9 | 84 | 2.42 | 54 | 0 |
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| 2005 | 79.5 | 6 | 93.8 | 5 | 65.2 | 16 | 4.19 | 36 | 0 |
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| 2004 | 74.6 | 45 | 88.9 | 31 | 60.3 | 62 | 0.88 | 84 | 0 |
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| 2003 | 71.6 | 75 | 82.8 | 84 | 60.4 | 61 | 4.62 | 28 | 0 |
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| 2002 | | | | | | | | | 16 |
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| 2001 | 70.5 | 84 | 82.2 | 88 | 58.8 | 76 | 2.24 | 61 | 1 |
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| 2000 | 74.7 | 44 | 90.4 | 21 | 59.5 | 69 | 3.29 | 44 | 1 |
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| 1999 | 73.5 | 56 | 87.7 | 41 | 59.2 | 71 | 2.00 | 63 | 0 |
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| 1998 | 79.7 | 5 | 90.6 | 20 | 68.9 | 1 | 7.93 | 9 | 0 |
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| 1997 | 75.6 | 33 | 89.6 | 24 | 62 | 43 | 1.71 | 71 | 1 |
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| 1996 | 71 | 81 | 82.5 | 85 | 59.6 | 68 | 3.99 | 37 | 1 |
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| 1995 | 72.3 | 70 | 83.1 | 80 | 61.5 | 49 | 4.34 | 32 | 0 |
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| 1994 | 72.8 | 65 | 85.8 | 59 | 59.2 | 71 | 2.38 | 55 | 1 |
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| 1993 | 72.4 | 69 | 86 | 58 | 58.9 | 74 | 4.91 | 25 | 0 |
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| 1992 | 71.8 | 74 | 83 | 82 | 60.6 | 58 | 10.31 | 4 | 1 |
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| 1991 | 73.3 | 58 | 84.4 | 71 | 62.3 | 38 | 5.00 | 24 | 0 |
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| 1990 | 78.3 | 8 | 91.1 | 15 | 65.4 | 14 | 3.59 | 40 | 0 |
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| 1989 | 72.3 | 70 | 84 | 74 | 60.6 | 58 | 4.83 | 26 | 2 |
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| 1988 | 75.8 | 29 | 89.1 | 28 | 62.4 | 36 | 2.47 | 53 | 1 |
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| 1987 | 74.4 | 49 | 89.6 | 24 | 59.3 | 70 | 4.54 | 31 | 0 |
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| 1986 | 76.7 | 18 | 87.4 | 44 | 65.8 | 11 | 5.80 | 19 | 1 |
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| 1985 | 74.6 | 45 | 87.4 | 44 | 61.9 | 45 | 2.67 | 50 | 0 |
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| 1984 | 72.3 | 70 | 84.3 | 73 | 60.1 | 64 | 6.25 | 15 | 1 |
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| 1983 | | | 90.7 | 19 | | | 0.86 | 85 | 10 |
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| 1982 | | | 88.2 | 36 | | | 1.07 | 79 | 8 |
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| 1981 | 72.8 | 65 | 87.5 | 43 | 58.1 | 79 | 0.82 | 86 | 0 |
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| 1980 | 78.4 | 7 | 91.9 | 10 | 64.8 | 19 | 12.02 | 1 | 0 |
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| 1979 | 71.5 | 77 | 84.5 | 69 | 58.7 | 77 | 3.49 | 42 | 1 |
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| 1978 | 77.2 | 13 | 88.2 | 36 | 66.2 | 8 | 0.89 | 83 | 0 |
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| 1977 | 78.3 | 8 | 89.6 | 24 | 67 | 6 | 1.65 | 73 | 0 |
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| 1976 | 70.1 | 86 | 83.1 | 80 | 57.2 | 83 | 7.92 | 10 | 0 |
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| 1975 | 69.9 | 87 | 83 | 82 | 56.6 | 85 | 2.27 | 58 | 1 |
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| 1974 | 68 | 89 | 77.8 | 92 | 58.1 | 79 | 12.01 | 2 | 0 |
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| 1973 | 75.6 | 33 | 85.1 | 65 | 66.1 | 9 | 10.40 | 3 | 0 |
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| 1972 | 77.8 | 11 | 89.1 | 28 | 66.5 | 7 | 1.99 | 64 | 1 |
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| 1971 | 76 | 26 | 88 | 38 | 64 | 24 | 1.63 | 74 | 0 |
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| 1970 | 77 | 14 | 88.3 | 34 | 65.7 | 12 | 1.94 | 65 | 0 |
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| 1969 | 73.8 | 55 | 86.4 | 54 | 61.1 | 52 | 3.10 | 46 | 0 |
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| 1968 | 71.1 | 80 | 83.9 | 75 | 58.3 | 78 | 6.66 | 14 | 0 |
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| 1967 | 71.3 | 78 | 82.5 | 85 | 60 | 67 | 2.15 | 62 | 0 |
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| 1966 | 72.1 | 73 | 83.3 | 78 | 60.9 | 54 | 3.28 | 45 | 0 |
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| 1965 | 76.2 | 22 | 87.8 | 39 | 64.7 | 20 | 5.10 | 21 | 0 |
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| 1964 | 73.4 | 57 | 84.5 | 69 | 62.4 | 36 | 4.73 | 27 | 0 |
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| 1963 | 75.1 | 39 | 87.4 | 44 | 62.8 | 33 | 0.69 | 87 | 0 |
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| 1962 | 74.9 | 41 | 85.7 | 61 | 64.1 | 23 | 8.54 | 6 | 0 |
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| 1961 | 73.9 | 54 | 85.8 | 59 | 62 | 43 | 2.37 | 56 | 0 |
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| 1960 | 76 | 26 | 90.3 | 22 | 61.8 | 46 | 4.28 | 35 | 0 |
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| 1959 | 76.2 | 22 | 87.2 | 49 | 65.1 | 17 | 3.08 | 47 | 0 |
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| 1958 | 76.2 | 22 | 86.3 | 55 | 66.1 | 9 | 9.68 | 5 | 0 |
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| 1957 | 72.6 | 68 | 85.1 | 65 | 60.1 | 64 | 7.57 | 11 | 0 |
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| 1956 | 75.2 | 36 | 94.5 | 4 | 55.8 | 89 | 1.00 | 80 | 0 |
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| 1955 | 75.8 | 29 | 91.2 | 13 | 60.3 | 62 | 4.30 | 33 | 0 |
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| 1954 | | | 96.7 | 2 | | | 3.86 | 39 | 11 |
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| 1953 | 75.1 | 39 | 93.2 | 8 | 56.6 | 85 | 1.43 | 76 | 3 |
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| 1952 | 74.2 | 50 | 91 | 16 | 57.5 | 81 | 1.92 | 66 | 0 |
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| 1951 | 71.6 | 75 | 84.4 | 71 | 58.9 | 74 | 6.10 | 16 | 0 |
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| 1950 | 70.4 | 85 | 78.1 | 91 | 62.7 | 35 | 8.25 | 8 | 0 |
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| 1949 | 68.9 | 88 | 81.8 | 89 | 55.9 | 88 | 3.55 | 41 | 0 |
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| 1948 | 74 | 53 | 87.1 | 52 | 60.9 | 54 | 1.66 | 72 | 0 |
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| 1947 | 74.6 | 45 | 87.1 | 52 | 62.1 | 41 | 2.52 | 52 | 0 |
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| 1946 | 73.3 | 58 | 83.7 | 76 | 62.9 | 31 | 1.85 | 68 | 0 |
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| 1945 | 72.9 | 63 | 84.9 | 67 | 60.9 | 54 | 2.61 | 51 | 0 |
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| 1944 | 73.3 | 58 | 84.8 | 68 | 61.8 | 46 | 2.26 | 59 | 0 |
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| 1943 | 74.2 | 50 | 86.2 | 57 | 62.2 | 39 | 0.93 | 82 | 0 |
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| 1942 | 70.9 | 82 | 81.1 | 90 | 60.6 | 58 | 2.82 | 49 | 0 |
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| 1941 | 78.1 | 10 | 90.9 | 17 | 65.4 | 14 | 1.79 | 70 | 0 |
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| 1940 | 73.2 | 61 | 87.3 | 48 | 59 | 73 | 0.19 | 90 | 0 |
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| 1939 | 81.7 | 2 | 97.8 | 1 | 65.5 | 13 | 0.17 | 91 | 0 |
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| 1938 | 76.8 | 17 | 92.2 | 9 | 61.4 | 51 | 1.92 | 66 | 0 |
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| 1937 | 75.4 | 35 | 87.4 | 44 | 63.5 | 28 | 5.85 | 18 | 0 |
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| 1936 | 81.1 | 4 | 93.8 | 5 | 68.4 | 3 | 5.60 | 20 | 0 |
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| 1903 | 75.9 | 28 | 91.9 | 10 | 60.1 | 64 | 2.95 | 48 | 1 |
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| 1902 | 70.9 | 82 | 85.4 | 64 | 56.3 | 87 | 7.23 | 12 | 0 |
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