A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >
KNOXVILLE TN DAILY NORMALS AND RECORDS SEPTEMBER MAX MIN AVG HDD CDD PCPN REC HIGH REC LOW REC PCPN 1 86 65 76 0 11 0.10 100 1951 50 1946 1.10 1982 2 86 65 76 0 11 0.09 98 2011 48 1987 1.72 1986 3 86 65 75 0 10 0.10 98 2011 50 1987 5.30 1898 4 86 65 75 0 10 0.10 101 1954 51 1952 1.09 1981 5 86 64 75 0 10 0.10 103 1954 50 2010 5.49 2011 6 85 64 75 0 10 0.10 101 1954 47 1984 1.33 1981 7 85 64 74 0 10 0.11 102 1925 47 1984 2.52 1977 8 85 64 74 0 9 0.11 96 1941 46 1984 1.28 2008 9 85 63 74 0 9 0.12 100 1925 46 1984 1.42 1968 10 84 63 74 0 9 0.12 97 2019 48 1924 2.27 1877 11 84 63 73 0 9 0.13 96 1925 47 1993 1.74 2010 12 84 63 73 0 8 0.13 94 2019 45 1940 1.10 1987 13 84 62 73 0 8 0.14 97 2019 47 1940 1.85 1957 14 83 62 72 0 8 0.13 96 1998 42 1902 1.30 1945 15 83 62 72 0 8 0.12 96 1927 41 1985 3.31 1989 16 83 61 72 0 7 0.13 96 1927 43 1985 2.46 1962 17 82 61 72 0 7 0.12 95 1931 45 1985 2.94 2012 18 82 61 71 0 7 0.12 98 1931 45 1903 3.16 2012 19 82 60 71 0 6 0.12 98 1925 42 1901 1.90 1969 20 81 60 71 1 6 0.11 97 1925 43 1889 1.75 1932 21 81 59 70 1 6 0.11 95 1955 42 1918 2.41 2002 22 81 59 70 1 6 0.12 96 1955 38 1983 3.16 1907 23 80 59 70 1 5 0.11 96 1931 40 1999 3.04 2006 24 80 58 69 1 5 0.12 93 2007 37 1983 2.22 1902 25 80 58 69 1 5 0.11 94 2016 38 1887 2.30 2024 26 79 58 68 1 5 0.12 89 2019 41 2001 3.04 2009 27 79 57 68 1 4 0.13 92 2019 38 1899 2.16 1880 28 79 57 68 2 4 0.12 93 1939 37 1985 1.78 1872 29 78 56 67 2 4 0.12 95 2019 37 1942 4.17 1944 30 78 56 67 2 4 0.13 95 2019 35 1888 1.99 1915 MO 82.5 61.1 71.8 17 220 3.49 103 1954 35 1888 5.49 2011 DATE OF OCCURANCE IN MONTH (5) (30) (5)