Portland, Tennessee
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° 43° -19° (1963) 72° (2006) 4.23" 5.5"
February 30° 48° -9° (1965) 81° (1996) 4.14" 3.2"
March 38° 58° -1° (1960) 85° (1982) 5.55" 1"
April 47° 68° 22° (1966) 89° (2006) 4.23" 0"
May 57° 76° 29° (1963) 94° (1962) 5.51" 0"
June 65° 84° 36° (1966) 100° (1988) 4.58" 0"
July 69° 88° 48° (1970) 102° (1988) 4.46" 0"
August 67° 87° 44° (1964) 105° (2007) 3.58" 0"
September 60° 81° 32° (1965) 100° (1990) 3.79" 0"
October 48° 70° 22° (1962) 90° (2007) 3.43" 0"
November 39° 58° 9° (1976) 84° (1971) 4.73" 0.5"
December 30° 47° -14° (1989) 76° (1998) 5.06" 1.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 65° 85° 45° (1967) 97° (1957) 0.12" NA
Sep 2 64° 85° 46° (1967) 95° (1960) 0.12" NA
Sep 3 64° 85° 52° (1964) 96° (1990) 0.12" NA
Sep 4 64° 84° 50° (1970) 96° (1999) 0.12" NA
Sep 5 64° 84° 47° (1984) 97° (1999) 0.13" NA
Sep 6 64° 84° 45° (1988) 99° (1999) 0.13" NA
Sep 7 63° 84° 48° (1966) 99° (1990) 0.13" NA
Sep 8 63° 83° 48° (1956) 100° (1990) 0.13" NA
Sep 9 63° 83° 47° (1981) 97° (1955) 0.13" NA
Sep 10 62° 83° 46° (1969) 96° (1964) 0.13" NA
Sep 11 62° 83° 40° (1969) 95° (2002) 0.13" NA
Sep 12 62° 82° 44° (1968) 93° (1983) 0.13" NA
Sep 13 61° 82° 44° (1975) 95° (1980) 0.13" NA
Sep 14 61° 82° 34° (1964) 94° (1980) 0.13" NA
Sep 15 61° 81° 41° (1964) 96° (1956) 0.13" NA
Sep 16 60° 81° 38° (1961) 97° (1956) 0.13" NA
Sep 17 60° 81° 40° (1961) 93° (1955) 0.13" NA
Sep 18 60° 81° 39° (1961) 92° (1955) 0.13" NA
Sep 19 59° 80° 38° (1961) 94° (1955) 0.13" NA
Sep 20 59° 80° 42° (1956) 95° (1955) 0.13" NA
Sep 21 59° 80° 37° (1962) 97° (1955) 0.13" NA
Sep 22 58° 79° 34° (1983) 95° (1955) 0.13" NA
Sep 23 58° 79° 36° (1974) 92° (1980) 0.13" NA
Sep 24 57° 79° 38° (1982) 92° (2007) 0.12" NA
Sep 25 57° 78° 32° (1965) 94° (1961) 0.12" NA
Sep 26 56° 78° 37° (1965) 93° (2007) 0.12" NA
Sep 27 56° 77° 38° (2001) 89° (1998) 0.12" NA
Sep 28 55° 77° 39° (1962) 92° (1998) 0.12" NA
Sep 29 55° 77° 33° (1967) 90° (1955) 0.12" NA
Sep 30 54° 76° 36° (1963) 93° (1998) 0.12" NA
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