National Weather Service United States Department of Commerce

Arctic Outbreak Early Next Week. Be Prepared for the Frigid Cold Temperatures.

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)