National Weather Service United States Department of Commerce

     

Chattanooga Climate Normals and Records
(records began in 1879)

 

Note: The following monthly climatological data is not considered official.

For copies of official data, contact the National Climatic Data Center.

Daily and Monthly Climate Normals and Records
('Normals' are thirty year averages based on the period 1981-2010)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
 
 
 
 
For climate data queries, please visit NOWData at:   
http://w2.weather.gov/climate/xmacis.php?wfo=mrx
 
 
 
Helpful Information:
Frost data - search for temperatures at or below 36 degrees
Freeze data - search for temperatures at or below 32 degrees
 
 
Warmest/Coldest Monthly Average Temperatures
  JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Warmest 53.7 53.9 62.9 66.5 75.2 82.2 85.2 85.7 82.8 69.7 58.8 57.2
  1950 1890 2012 2017 1962 1952 1993 2007 1925 1919 1985 1889

Coldest 28.5 33.8 39.0 53.2 62.6 68.4 72.8 73.5 67.4 54.5 42.7 34.5
  1977 1895 1960 1907 1917 1974 1967 1992 1967 1917 1976 1917
Wettest/Driest Monthly Precipitation Totals
  JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Wettest 12.67 12.30 16.32 15.29 12.00 9.40 13.49 12.36 14.18 11.91 13.59 13.68
  1882 1939 1980 1911 1929 1949 1916 1920 1977 1925 1948 1961

Driest 0.90 0.62 0.93 0.44 0.54 0.29 0.20 0.01 0.04 0.08 0.16 0.44
  1986 1941 1910 1942 1941 1931 1957 2011 1919 2016 1890 1889

For additional information via a searchable database:

www.nws.noaa.gov/climate/xmacis.php