Decatur, Tennessee
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° 47° -16° (1985) 74° (2002) 6.09" 3.8"
February 29° 52° -14° (1966) 79° (1977) 4.91" 2.3"
March 36° 61° 2° (1980) 85° (1982) 6.32" 0.3"
April 43° 70° 22° (2007) 90° (1986) 4.8" 0.4"
May 52° 77° 29° (1971) 95° (1962) 4.86" 0"
June 61° 85° 36° (1966) 101° (1988) 4.08" 0"
July 66° 88° 48° (1967) 105° (1980) 4.65" 0"
August 65° 87° 48° (1964) 103° (2007) 3.69" 0"
September 58° 82° 29° (1967) 99° (1975) 5.04" 0"
October 45° 71° 23° (1962) 90° (2007) 3.61" 0"
November 36° 60° 9° (1970) 83° (2003) 5.01" 0"
December 29° 50° -4° (1962) 76° (2007) 5.33" 0.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 63° 85° 50° (1973) 94° (1970) 0.15" NA
Sep 2 62° 85° 48° (1973) 95° (1993) 0.15" NA
Sep 3 62° 85° 46° (1973) 94° (1970) 0.16" NA
Sep 4 62° 84° 54° (1967) 96° (1962) 0.16" NA
Sep 5 62° 84° 50° (1967) 99° (1975) 0.16" NA
Sep 6 62° 84° 51° (1967) 97° (1975) 0.17" NA
Sep 7 61° 84° 49° (1984) 96° (1998) 0.17" NA
Sep 8 61° 84° 50° (1984) 96° (1998) 0.17" NA
Sep 9 61° 83° 51° (1984) 96° (1999) 0.17" NA
Sep 10 61° 83° 49° (1969) 93° (2007) 0.17" NA
Sep 11 60° 83° 42° (1976) 96° (2002) 0.18" NA
Sep 12 60° 83° 45° (1968) 92° (1962) 0.18" NA
Sep 13 60° 82° 46° (1969) 95° (1962) 0.18" NA
Sep 14 59° 82° 46° (1964) 97° (1998) 0.18" NA
Sep 15 59° 82° 42° (1985) 96° (1998) 0.18" NA
Sep 16 58° 82° 44° (1985) 93° (1991) 0.18" NA
Sep 17 58° 81° 45° (1985) 93° (1980) 0.18" NA
Sep 18 58° 81° 40° (1981) 93° (1991) 0.18" NA
Sep 19 57° 81° 39° (1981) 94° (1998) 0.18" NA
Sep 20 57° 80° 39° (1981) 91° (1997) 0.18" NA
Sep 21 56° 80° 42° (1981) 92° (1978) 0.17" NA
Sep 22 56° 80° 37° (1983) 92° (1978) 0.17" NA
Sep 23 56° 80° 38° (1982) 93° (1980) 0.17" NA
Sep 24 55° 79° 36° (1963) 92° (1980) 0.17" NA
Sep 25 55° 79° 39° (1964) 93° (2007) 0.16" NA
Sep 26 54° 79° 39° (1990) 92° (2007) 0.16" NA
Sep 27 54° 78° 39° (2001) 90° (1998) 0.16" NA
Sep 28 53° 78° 39° (1985) 91° (1998) 0.15" NA
Sep 29 52° 77° 38° (1962) 90° (1986) 0.15" NA
Sep 30 52° 77° 29° (1967) 87° (1986) 0.15" NA
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