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
Precipitation.....47.86 inches Days with 0.01" or more of precipitation.....125.2
Snowfall.....6.5 inches Days with 1.0" or more of snowfall.....2.2
Days with thunderstorms.....48.4 Days at or above 90 F.....31.4
Days with dense fog.....30 Days at or below 32 F.....67
Average first freeze.....November 3 Average last freeze.....April 6
Average first frost.....October 17 Average last frost.....April 19


Knoxville All-Time Records
All Time Highest Temperature 105 F June 30 and July 1, 2012
All Time Lowest Temperature -24 F January 21, 1985
Most Rain in One Day 6..14" July 16, 1917
Most Rain in One Month 17.62" April 1874
Most Rain in One Year 73.77" 1875
Most Snow in One Day 17.5" February 13, 1960
Most Snow in One Season 56.7" 1959-60
Measurable Snowfall on Christmas 2.5" 2010
  0.3" 1992
  0.1" 1989
  1.2" 1976
  7.0" 1969
  0.4" 1935
  0.4" 1929
  2.0" 1915
  0.3" 1909
  0.3" 1899
  2.2" 1887
  0.6" 1884

 







Warmest/Coldest Monthly Average Temperatures







 
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC




Warmest
52.0
51.9
60.4
64.6
74.0
81.4
83.0
83.2
79.7
68.9
56.8
54.1




 
1950
1890
2012
1954
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
0.22
0.00
0.17
0.45




 
1986
1898
1910
1976
1941
1944
1995
1954
1879
2000
1890
1965


 

For additional information via a searchable database:

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



 

 

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