National Weather Service United States Department of Commerce

Knoxville Climate Normals and Records
(records began in 1871)

 

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
 
 
 
Knoxville Annual Averages

Average Rainfall..... 48.04"                                   

Avg number of days at or above 90 F..... 34 days

Average Snowfall..... 9.3"  

Avg number of days at or below 32 F..... 68 days

Average first frost..... October 21st

Average last frost..... April 14th

Average first freeze..... November 1st

Average last freeze..... April 2nd

Thanksgiving avg temp..... 44.7 F

Thanksgiving avg rainfall..... 0.09"

Easter avg temp..... 57.0 F

Easter avg rainfall..... 0.10"

 

 
Knoxville Records

Highest Temperature

 105 F                             July 1, 2012                         

Lowest Temperature

     -24 F      January 21, 1985

Highest rainfall total in one day

6.14" July 16, 1917

Highest rainfall total in one month

17.62" April 1874

Highest rainfall total in one year

73.77" 1875

Most snow in one day

17.5" February 13, 1960

Most snow in one month

25.7" February 1895

Most Snow in one season (Dec - Feb)

41.6" 1894 - 1895

Most snow in one year

56.7" 1959 - 1960

Easter highest rainfall total

1.35" March 27, 1932

Easter highest snowfall total

6.1" March 24, 1940

Easter warmest temperature

88 F April 21, 1946

Easter coldest temperature

23 F April 8, 2007  &  April 1, 1923

Thanksgiving highest rainfall total

1.09" November 28, 1918

Thanksgiving highest snowfall total

1.3" November 24, 1938

Thanksgiving warmest temperature

       74 F        November 25, 2010  &  November 22, 1979

Thanksgiving coldest temperature

17 F November 27, 1930

Measurable snowfall on Christmas Day

7.0" 1969

 

2.5" 2010

 

2.2" 1887

 

2.0" 1915

 

1.2" 1976

 

0.6" 1884

 

0.4" 1935

 

0.4" 1929
 

0.3"

1992
 

0.3"

1909
 

0.3"

1899
 

0.1"

1989
 
 
Last updated on 11/20/2017
 
 
 
 
 
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 52.0 51.9 60.4 65.1 74.0 81.4 83.0 83.2 79.7 68.9 56.8 54.1
  1950 1890 2012 2017 1962 1952 1993 2007 1925 1919 1985 1889

Coldest 26.7 30.5 36.8 51.2 60.9 69.1 71.8 72.0 65.1 52.4 40.2 29.5
  1940 1895 1960 1907 1917 1903 1967 1875 1918 1917 1872 1876
Wettest/Driest Monthly Precipitation Totals
  JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Wettest 16.98 12.52 13.35 17.62 10.98 11.83 13.16 11.33 9.19 9.51 10.36 12.34
  1882 1873 1917 1874 1974 1928 1917 1920 1989 1925 1948 1901

Driest 0.95 0.56 0.72 0.39 0.71 0.20 0.33 0.77 0.19 0.00 0.17 0.45
  1986 1898 1910 1976 1941 1944 1995 1954 2014 2000 1890 1965

 

For additional information via a searchable database:

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