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
May 1 48° 74° 35° (1963) 90° (1970) 0.15" NA
May 2 48° 74° 32° (1963) 89° (2007) 0.16" NA
May 3 48° 74° 31° (1971) 87° (1983) 0.16" NA
May 4 49° 74° 29° (1971) 83° (1965) 0.16" NA
May 5 49° 75° 33° (1973) 84° (1965) 0.16" NA
May 6 49° 75° 37° (1968) 86° (1969) 0.16" NA
May 7 50° 75° 34° (1989) 87° (1977) 0.16" NA
May 8 50° 75° 33° (1989) 88° (1969) 0.16" NA
May 9 50° 76° 36° (1967) 88° (1962) 0.16" NA
May 10 50° 76° 34° (1980) 88° (1963) 0.16" NA
May 11 51° 76° 35° (1969) 89° (2007) 0.16" NA
May 12 51° 76° 39° (1990) 92° (1979) 0.16" NA
May 13 51° 76° 37° (1989) 88° (1962) 0.16" NA
May 14 52° 77° 39° (1971) 90° (1962) 0.16" NA
May 15 52° 77° 42° (1996) 89° (1985) 0.16" NA
May 16 52° 77° 34° (1973) 91° (1962) 0.16" NA
May 17 53° 77° 38° (1997) 93° (1962) 0.16" NA
May 18 53° 78° 32° (1973) 93° (1962) 0.16" NA
May 19 53° 78° 35° (1976) 93° (1962) 0.16" NA
May 20 54° 78° 37° (2002) 95° (1962) 0.16" NA
May 21 54° 78° 37° (2002) 91° (1962) 0.16" NA
May 22 54° 79° 37° (1986) 91° (1962) 0.16" NA
May 23 55° 79° 40° (2002) 92° (1962) 0.16" NA
May 24 55° 79° 43° (2002) 94° (1975) 0.15" NA
May 25 55° 80° 44° (1976) 92° (1970) 0.15" NA
May 26 56° 80° 33° (1979) 91° (1975) 0.15" NA
May 27 56° 80° 37° (1979) 90° (1962) 0.15" NA
May 28 56° 80° 46° (1974) 89° (1962) 0.15" NA
May 29 56° 81° 47° (1968) 92° (1962) 0.15" NA
May 30 57° 81° 38° (1984) 90° (1962) 0.15" NA
May 31 57° 81° 36° (1984) 92° (1982) 0.14" NA
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