Annandale, Pennsylvania
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 34° -28° (1994) 72° (1950) 2.71" 13"
February 16° 38° -21° (1979) 73° (2000) 2.31" 9.9"
March 24° 48° -10° (1993) 82° (1998) 3.39" 7"
April 31° 59° 9° (1987) 88° (1990) 3.46" 1.2"
May 41° 70° 22° (1983) 92° (2006) 3.9" 0"
June 50° 78° 30° (1972) 99° (1952) 4.7" 0"
July 55° 82° 37° (1979) 102° (1988) 4.4" 0"
August 53° 81° 28° (1982) 99° (1953) 3.99" 0"
September 47° 74° 27° (1991) 99° (1953) 3.93" 0"
October 36° 62° 12° (1975) 91° (2007) 2.87" 0.1"
November 29° 50° -1° (1958) 81° (1961) 3.49" 2.6"
December 21° 39° -20° (1989) 74° (1982) 3.11" 8.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 51° 78° 34° (1976) 97° (1953) 0.13" NA
Sep 2 50° 78° 38° (1987) 99° (1953) 0.14" NA
Sep 3 50° 78° 36° (1976) 97° (1953) 0.14" NA
Sep 4 50° 77° 36° (1976) 95° (1953) 0.14" NA
Sep 5 50° 77° 37° (1974) 96° (1954) 0.14" NA
Sep 6 49° 77° 33° (1976) 92° (1954) 0.14" NA
Sep 7 49° 77° 33° (1976) 93° (2007) 0.14" NA
Sep 8 49° 76° 34° (1986) 92° (2002) 0.14" NA
Sep 9 49° 76° 31° (1979) 93° (1959) 0.14" NA
Sep 10 48° 76° 31° (1979) 92° (1964) 0.14" NA
Sep 11 48° 76° 33° (1975) 93° (1952) 0.14" NA
Sep 12 48° 75° 30° (1985) 94° (1952) 0.14" NA
Sep 13 48° 75° 28° (1985) 94° (1952) 0.14" NA
Sep 14 47° 75° 28° (1985) 92° (1998) 0.14" NA
Sep 15 47° 75° 31° (1985) 95° (1952) 0.14" NA
Sep 16 47° 74° 33° (1985) 89° (1955) 0.13" NA
Sep 17 46° 74° 30° (1986) 90° (1955) 0.13" NA
Sep 18 46° 74° 33° (1990) 89° (1955) 0.13" NA
Sep 19 46° 73° 35° (1959) 90° (1955) 0.13" NA
Sep 20 45° 73° 27° (1979) 88° (2002) 0.13" NA
Sep 21 45° 73° 29° (1979) 89° (1970) 0.13" NA
Sep 22 45° 72° 32° (1983) 87° (1965) 0.13" NA
Sep 23 44° 72° 30° (1974) 89° (1961) 0.12" NA
Sep 24 44° 71° 29° (1974) 88° (1961) 0.12" NA
Sep 25 44° 71° 30° (1974) 88° (1970) 0.12" NA
Sep 26 43° 71° 30° (1989) 91° (2007) 0.12" NA
Sep 27 43° 70° 29° (1989) 91° (1998) 0.12" NA
Sep 28 43° 70° 27° (1991) 89° (1959) 0.11" NA
Sep 29 42° 70° 27° (1991) 90° (1953) 0.11" NA
Sep 30 42° 69° 29° (1978) 92° (1953) 0.11" NA
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