Every September in Parkersburg, WV from 1926 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 | 70.6 | 13 | 80.5 | 25 | 60.6 | 9 | 7.64 | 4 | 0 |
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| 2025 | 68.7 | 35 | 82.2 | 16 | 55.1 | 64 | 4.45 | 22 | 0 |
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| 2024 | 69.1 | 29 | 81.3 | 21 | 56.9 | 45 | 2.52 | 47 | 0 |
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| 2023 | 67.4 | 48 | 78 | 51 | 56.8 | 46 | 1.12 | 86 | 0 |
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| 2022 | 65.8 | 69 | 76.2 | 70 | 55.4 | 60 | 1.96 | 63 | 0 |
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| 2021 | 68.1 | 39 | 78.5 | 44 | 57.7 | 32 | 2.93 | 41 | 0 |
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| 2020 | 66.2 | 65 | 77.4 | 57 | 55 | 65 | 1.91 | 65 | 0 |
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| 2019 | 72.6 | 1 | 86.4 | 1 | 58.8 | 20 | 0.55 | 97 | 0 |
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| 2018 | 72.2 | 3 | 81.4 | 19 | 63 | 1 | 7.99 | 3 | 0 |
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| 2017 | 67 | 52 | 78.3 | 45 | 55.7 | 55 | 1.29 | 81 | 0 |
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| 2016 | 72.2 | 3 | 85.4 | 2 | 58.9 | 19 | 2.28 | 53 | 0 |
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| 2015 | 69 | 32 | 80.1 | 31 | 57.9 | 29 | 5.97 | 10 | 0 |
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| 2014 | 65.8 | 69 | 78 | 51 | 53.5 | 86 | 0.85 | 92 | 1 |
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| 2013 | 65.5 | 72 | 76.4 | 67 | 54.5 | 74 | 1.36 | 79 | 0 |
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| 2012 | 65.3 | 74 | 76.4 | 67 | 54.1 | 79 | 6.07 | 9 | 0 |
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| 2011 | 66.3 | 60 | 74.9 | 85 | 57.6 | 34 | 6.24 | 6 | 0 |
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| 2010 | 67.5 | 46 | 80.5 | 25 | 54.4 | 75 | 1.79 | 69 | 0 |
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| 2009 | 66.4 | 59 | 77.2 | 59 | 55.7 | 55 | 2.05 | 59 | 0 |
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| 2008 | 69.2 | 28 | 81.3 | 21 | 57.1 | 40 | 1.19 | 84 | 0 |
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| 2007 | 69.5 | 26 | 83.7 | 5 | 55.2 | 63 | 0.95 | 90 | 0 |
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| 2006 | 63.2 | 95 | 72.5 | 97 | 53.9 | 81 | 5.78 | 11 | 0 |
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| 2005 | 69.1 | 29 | 82.2 | 16 | 55.9 | 53 | 0.47 | 98 | 0 |
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| 2004 | 67.2 | 50 | 78.2 | 46 | 56.2 | 51 | 8.22 | 1 | 0 |
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| 2003 | 64.4 | 84 | 74.3 | 89 | 54.6 | 69 | 6.24 | 6 | 0 |
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| 2002 | 70.1 | 19 | 83.7 | 5 | 56.5 | 48 | 3.14 | 37 | 0 |
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| 2001 | 63.4 | 92 | 75.2 | 81 | 51.5 | 97 | 1.24 | 82 | 0 |
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| 1997 | 64.6 | 80 | 75.5 | 80 | 53.8 | 83 | 2.33 | 51 | 0 |
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| 1996 | 63.9 | 88 | 73.1 | 94 | 54.6 | 69 | 6.20 | 8 | 0 |
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| 1995 | 64.6 | 80 | 76.2 | 70 | 53 | 91 | 1.86 | 67 | 0 |
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| 1994 | 64.3 | 85 | 75.6 | 76 | 53 | 91 | 1.79 | 69 | 0 |
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| 1993 | 65 | 78 | 74.6 | 88 | 55.5 | 58 | 3.01 | 39 | 0 |
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| 1992 | 65.8 | 69 | 76.8 | 63 | 54.8 | 68 | 2.43 | 49 | 0 |
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| 1991 | 66.3 | 60 | 77 | 61 | 55.6 | 57 | 3.93 | 28 | 0 |
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| 1990 | 66.6 | 56 | 76.2 | 70 | 57.1 | 40 | 3.40 | 32 | 0 |
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| 1989 | 66.5 | 58 | 75.6 | 76 | 57.5 | 35 | 6.56 | 5 | 0 |
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| 1988 | 65.5 | 72 | 75.8 | 74 | 55.3 | 61 | 3.90 | 29 | 0 |
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| 1987 | 67.1 | 51 | 77.2 | 59 | 57.1 | 40 | 2.10 | 57 | 0 |
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| 1986 | 68.6 | 37 | 78.1 | 50 | 59.1 | 17 | 4.54 | 20 | 0 |
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| 1985 | 67.4 | 48 | 80.1 | 31 | 54.6 | 69 | 0.60 | 96 | 0 |
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| 1984 | 65.9 | 67 | 76.3 | 69 | 55.5 | 58 | 1.38 | 78 | 0 |
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| 1983 | 67.5 | 46 | 78.6 | 43 | 56.4 | 49 | 1.23 | 83 | 0 |
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| 1982 | 66.9 | 53 | 75.7 | 75 | 58.1 | 27 | 2.29 | 52 | 0 |
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| 1981 | 65.3 | 74 | 75.6 | 76 | 55 | 65 | 2.04 | 60 | 0 |
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| 1980 | 69 | 32 | 80 | 33 | 57.9 | 29 | 2.04 | 60 | 0 |
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| 1979 | 66.2 | 65 | 75.6 | 76 | 56.7 | 47 | 3.97 | 25 | 0 |
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| 1978 | 70 | 20 | 79.5 | 35 | 60.4 | 10 | 1.79 | 69 | 0 |
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| 1977 | 70.2 | 16 | 79.3 | 37 | 61 | 8 | 2.86 | 43 | 0 |
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| 1976 | 63.3 | 94 | 73.1 | 94 | 53.5 | 86 | 2.81 | 44 | 0 |
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| 1975 | 62.6 | 98 | 71.3 | 98 | 53.9 | 81 | 5.42 | 13 | 0 |
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| 1974 | 63.4 | 92 | 72.7 | 96 | 54.1 | 79 | 3.20 | 36 | 0 |
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| 1973 | 69.3 | 27 | 80.4 | 27 | 58.2 | 26 | 3.32 | 33 | 0 |
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| 1972 | 68.7 | 35 | 77.9 | 53 | 59.5 | 13 | 4.97 | 18 | 0 |
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| 1971 | 70.2 | 16 | 78.7 | 42 | 61.6 | 3 | 4.59 | 19 | 0 |
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| 1970 | 71.9 | 5 | 82.4 | 13 | 61.3 | 4 | 3.66 | 30 | 0 |
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| 1969 | 65.2 | 76 | 75.1 | 83 | 55.3 | 61 | 1.91 | 65 | 0 |
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| 1968 | 67.6 | 44 | 77.9 | 53 | 57.3 | 38 | 3.06 | 38 | 0 |
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| 1967 | 63 | 96 | 74.8 | 86 | 51.1 | 98 | 1.49 | 76 | 0 |
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| 1966 | 64.1 | 87 | 74 | 90 | 54.2 | 78 | 2.88 | 42 | 0 |
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| 1965 | 69.7 | 24 | 79.6 | 34 | 59.7 | 12 | 5.06 | 17 | 0 |
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| 1964 | 66.3 | 60 | 78.2 | 46 | 54.3 | 77 | 2.94 | 40 | 0 |
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| 1963 | 64.8 | 79 | 77.8 | 55 | 51.9 | 95 | 0.99 | 89 | 0 |
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| 1962 | 63.9 | 88 | 74 | 90 | 53.8 | 83 | 5.37 | 15 | 0 |
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| 1961 | 71.8 | 6 | 84.3 | 4 | 59.3 | 14 | 0.65 | 95 | 0 |
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| 1960 | 69.9 | 21 | 80.4 | 27 | 59.3 | 14 | 1.80 | 68 | 0 |
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| 1959 | 70.9 | 10 | 83.6 | 7 | 58.1 | 27 | 1.19 | 84 | 0 |
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| 1958 | 66.8 | 55 | 76.7 | 65 | 57 | 44 | 2.61 | 45 | 0 |
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| 1957 | 69 | 32 | 78.9 | 41 | 59 | 18 | 1.96 | 63 | 0 |
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| 1956 | 64.2 | 86 | 75 | 84 | 53.4 | 88 | 3.95 | 27 | 0 |
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| 1955 | 70.4 | 15 | 82.1 | 18 | 58.7 | 21 | 1.64 | 74 | 0 |
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| 1954 | 70.5 | 14 | 82.5 | 10 | 58.5 | 23 | 1.73 | 72 | 0 |
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| 1953 | 67.6 | 44 | 80.7 | 23 | 54.6 | 69 | 2.45 | 48 | 0 |
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| 1952 | 66.3 | 60 | 79.5 | 35 | 53.1 | 89 | 1.60 | 75 | 0 |
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| 1951 | 66.3 | 60 | 78.2 | 46 | 54.4 | 75 | 2.55 | 46 | 0 |
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| 1950 | 65.2 | 76 | 74.7 | 87 | 55.8 | 54 | 5.50 | 12 | 0 |
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| 1949 | 62.8 | 97 | 73.7 | 92 | 51.9 | 95 | 1.39 | 77 | 0 |
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| 1948 | 68.3 | 38 | 79 | 39 | 57.5 | 35 | 5.11 | 16 | 0 |
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| 1947 | 68 | 41 | 78.2 | 46 | 57.7 | 32 | 2.18 | 55 | 0 |
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| 1946 | 68 | 41 | 81.4 | 19 | 54.6 | 69 | 1.00 | 88 | 0 |
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| 1945 | 70.7 | 12 | 80.3 | 30 | 61.1 | 5 | 8.12 | 2 | 0 |
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| 1944 | 66.9 | 53 | 77.7 | 56 | 56.1 | 52 | 4.29 | 23 | 0 |
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| 1943 | 64.6 | 80 | 76.7 | 65 | 52.5 | 93 | 0.67 | 93 | 0 |
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| 1942 | 66.6 | 56 | 77 | 61 | 56.3 | 50 | 3.97 | 25 | 0 |
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| 1941 | 69.9 | 21 | 82.4 | 13 | 57.4 | 37 | 2.36 | 50 | 0 |
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| 1940 | 63.8 | 90 | 75.2 | 81 | 52.3 | 94 | 2.13 | 56 | 0 |
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| 1939 | 71.6 | 8 | 84.4 | 3 | 58.7 | 21 | 2.07 | 58 | 0 |
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| 1938 | 68 | 41 | 77.4 | 57 | 58.5 | 23 | 3.61 | 31 | 0 |
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| 1937 | 64.6 | 80 | 76.1 | 73 | 53.1 | 89 | 1.30 | 80 | 0 |
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| 1936 | 71.5 | 9 | 83.3 | 8 | 59.8 | 11 | 1.98 | 62 | 0 |
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| 1935 | 65.9 | 67 | 76.8 | 63 | 54.9 | 67 | 4.48 | 21 | 0 |
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| 1934 | 69.6 | 25 | 80.7 | 23 | 58.5 | 23 | 3.29 | 34 | 0 |
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| 1933 | 71.8 | 6 | 82.5 | 10 | 61.1 | 5 | 2.20 | 54 | 0 |
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| 1932 | 69.1 | 29 | 80.4 | 27 | 57.8 | 31 | 0.94 | 91 | 0 |
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| 1931 | 72.3 | 2 | 82.5 | 10 | 62.2 | 2 | 3.27 | 35 | 0 |
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| 1930 | 70.8 | 11 | 82.4 | 13 | 59.2 | 16 | 1.01 | 87 | 0 |
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| 1929 | 68.1 | 39 | 79 | 39 | 57.1 | 40 | 4.12 | 24 | 0 |
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| 1928 | 63.5 | 91 | 73.4 | 93 | 53.6 | 85 | 1.67 | 73 | 0 |
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| 1927 | 69.9 | 21 | 82.6 | 9 | 57.3 | 38 | 0.67 | 93 | 0 |
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| 1926 | 70.2 | 16 | 79.3 | 37 | 61.1 | 5 | 5.41 | 14 | 0 |
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