Knoxville Climate Page

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 Hour	2.78"	August 11, 1983
Most Rain in 24 Hours	6.20"	July 16, 1917
Most Rain in One Month	17.32"	April 1874
Most Rain in One Year	73.87"	1875
Most Snow in 24 Hours	18.2"	November 21-22, 1952
Most Snow in One Season	56.7"	1959-60
Snowfall on Christmas	2.5"	2010
	Trace	2002
	Trace	1993
	0.3"	1992
	Trace	1985
	1.2"	1976
	7.0"	1969
	2.0"	1962
	1.0"	1935
	6.0"	1929
	2.0"	1915
Strongest Wind Gust	86 MPH	August 1, 1995

Warmest/Coldest Monthly Average Temperatures
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Warmest	52.0	51.8	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	70.4	65.2	51.9	40.0	29.2
	1940	1895	1960	1907	1917	1903	1967	1875	1918	1875	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	17.32	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	Trace	0.17	0.45
	1986	1898	1910	1976	1941	1944	1995	1954	1879	2000	1890	1965

National Weather Service Weather Forecast Office