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 DECEMBER MAX MIN AVG HDD CDD PCPN REC HIGH REC LOW REC PCPN 1 57 37 47 18 0 0.17 72 2006 15 1929 2.32 2015 2 56 37 47 18 0 0.18 74 2018 17 1929 1.61 2023 3 56 37 46 19 0 0.17 75 2021 9 1929 2.96 1931 4 56 37 46 19 0 0.18 76 1998 15 1895 2.45 1912 5 55 37 46 19 0 0.18 77 1998 18 1974 2.89 1910 6 55 37 46 19 0 0.19 77 1998 13 1937 3.69 2004 7 55 36 46 19 0 0.18 78 1951 12 1937 1.58 1957 8 55 36 46 20 0 0.18 77 1978 12 1917 2.13 1924 9 54 36 45 20 0 0.18 74 2007 7 1917 1.80 1953 10 54 36 45 20 0 0.19 77 2007 8 1917 2.41 2008 11 54 36 45 20 0 0.18 77 2007 10 1962 3.15 1961 12 54 36 45 20 0 0.19 73 2015 2 1962 2.51 1920 13 54 36 45 20 0 0.17 73 2015 -2 1962 2.41 1931 14 53 36 44 21 0 0.19 73 1984 9 1917 2.64 1951 15 53 36 44 21 0 0.17 72 1971 5 1901 1.70 1927 16 53 35 44 21 0 0.16 74 1971 8 1989 1.48 1892 17 53 35 44 21 0 0.17 75 1924 11 1945 4.65 1961 18 53 35 44 21 0 0.17 73 2021 10 1901 2.27 1967 19 52 35 44 21 0 0.16 73 1889 8 1884 1.47 2002 20 52 35 44 22 0 0.16 74 1978 8 1901 2.66 1951 21 52 35 43 22 0 0.16 72 1967 5 1901 2.88 1881 22 52 35 43 22 0 0.16 71 2013 4 1989 2.80 1990 23 52 35 43 22 0 0.16 74 1970 5 1989 2.18 1990 24 52 34 43 22 0 0.16 75 1964 2 1983 1.70 2002 25 52 34 43 22 0 0.15 75 1955 -2 1983 4.14 2015 26 51 34 43 22 0 0.16 75 2021 2 1983 1.98 1911 27 51 34 43 22 0 0.15 76 2015 7 1925 2.18 1932 28 51 34 42 23 0 0.16 73 2015 4 1925 4.85 1942 29 51 34 42 23 0 0.15 73 1996 5 1894 2.17 1954 30 51 34 42 23 0 0.16 73 1984 3 1880 3.49 1969 31 51 33 42 23 0 0.16 73 1984 4 1880 1.45 1989 MO 53.2 35.3 44.3 644 1 5.25 78 1951 -2 1962 4.85 1942 1983 DATE OF OCCURANCE IN MONTH (7) (13,25) (28)