An outbreak of Arctic Air will plunge into the Tennessee Valley and southern Appalachians late this weekend and early next week. Light snow accumulations are also expected Sunday and Sunday night especially across the mountains. Be prepared for the cold weather. Read More >
CHATTANOOGA TN DAILY NORMALS AND RECORDS SEPTEMBER MAX MIN AVG HDD CDD PCPN REC HIGH REC LOW REC PCPN 1 88 68 78 0 13 0.11 100 1957 49 1946 2.62 1950 2 88 68 78 0 13 0.12 100 2011 53 1987 4.30 1898 3 88 68 78 0 12 0.12 100 1954 51 1952 1.38 2003 4 87 67 77 0 12 0.12 102 1954 51 1952 2.99 1986 5 87 67 77 0 12 0.12 104 1925 52 1997 9.49 2011 6 87 67 77 0 12 0.13 103 1925 53 2010 1.78 1890 7 87 66 76 0 12 0.14 104 1925 51 2017 6.37 1977 8 86 66 76 0 11 0.13 100 1925 52 2017 1.16 1884 9 86 66 76 0 11 0.14 102 1925 49 1958 2.64 1997 10 86 66 76 0 11 0.15 98 2019 50 1998 2.15 1950 11 86 65 76 0 10 0.15 96 2010 46 1940 1.83 2017 12 85 65 75 0 10 0.15 98 2019 40 1940 2.00 1965 13 85 65 75 0 10 0.16 103 2019 41 1940 3.59 1973 14 85 64 75 0 10 0.15 98 1939 42 1953 3.92 1957 15 85 64 74 0 9 0.14 97 2019 46 1985 2.06 1977 16 84 64 74 0 9 0.15 98 2019 47 1904 5.24 2004 17 84 63 74 0 9 0.14 100 2019 49 1985 3.01 1971 18 84 63 73 0 9 0.14 98 1927 47 1981 3.65 2012 19 84 63 73 0 8 0.15 100 1925 42 1981 2.26 2021 20 83 62 73 0 8 0.13 99 1925 40 1889 3.37 2009 21 83 62 72 0 8 0.14 98 1955 44 1956 3.37 2009 22 83 62 72 0 7 0.14 96 1940 41 1913 3.04 1909 23 82 61 72 0 7 0.15 96 2024 40 1982 3.59 1975 24 82 61 71 0 7 0.14 94 2016 41 1963 3.91 2020 25 82 60 71 0 6 0.15 97 2016 41 1887 1.74 2002 26 81 60 71 1 6 0.15 96 2019 42 1940 1.82 2009 27 81 60 70 1 6 0.15 95 2019 38 1940 3.92 1979 28 81 59 70 1 6 0.16 94 1954 39 1947 1.62 1907 29 80 59 70 1 6 0.15 95 2019 37 1942 2.24 1989 30 80 58 69 1 5 0.16 97 2019 36 1967 4.12 1915 MO 84.3 63.6 73.9 7 276 4.23 104 1925 36 1967 9.49 2011 DATE OF OCCURANCE IN MONTH (5,7) (30) (5)