Fairfax, Virginia
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° 41° -18° (1984) 75° (1975) 3.05" 8.1"
February 24° 46° -14° (1979) 79° (2000) 2.77" 6.2"
March 32° 55° -1° (1993) 89° (1998) 3.55" 3.4"
April 40° 66° 17° (1969) 93° (2002) 3.22" 0.4"
May 50° 75° 28° (1970) 97° (1969) 4.22" 0"
June 59° 83° 36° (1977) 100° (1964) 4.07" 0"
July 64° 87° 41° (1988) 104° (1988) 3.57" 0"
August 63° 86° 38° (1982) 104° (1983) 3.78" 0"
September 56° 79° 30° (1974) 99° (1983) 3.82" 0"
October 42° 68° 15° (1969) 94° (2007) 3.37" 0.1"
November 34° 57° 9° (1989) 84° (1982) 3.31" 0.8"
December 26° 46° -4° (1989) 79° (1998) 3.07" 2.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 60° 83° 49° (1976) 98° (1980) 0.13" NA
Sep 2 60° 83° 44° (1970) 99° (1980) 0.13" NA
Sep 3 60° 83° 45° (1967) 96° (1993) 0.13" NA
Sep 4 60° 82° 48° (1997) 95° (1985) 0.13" NA
Sep 5 59° 82° 42° (1997) 96° (1985) 0.13" NA
Sep 6 59° 82° 45° (1976) 98° (1983) 0.13" NA
Sep 7 59° 82° 41° (1976) 95° (1985) 0.13" NA
Sep 8 59° 81° 43° (1984) 93° (2007) 0.13" NA
Sep 9 58° 81° 40° (1986) 95° (1985) 0.13" NA
Sep 10 58° 81° 43° (1981) 99° (1983) 0.13" NA
Sep 11 58° 80° 40° (1976) 99° (1983) 0.13" NA
Sep 12 57° 80° 40° (1967) 95° (1998) 0.13" NA
Sep 13 57° 80° 43° (1985) 94° (1974) 0.13" NA
Sep 14 57° 80° 37° (1985) 95° (1998) 0.13" NA
Sep 15 56° 79° 38° (1985) 95° (1998) 0.13" NA
Sep 16 56° 79° 37° (1984) 97° (1991) 0.13" NA
Sep 17 56° 79° 35° (1986) 97° (1991) 0.13" NA
Sep 18 55° 78° 37° (1990) 91° (1978) 0.13" NA
Sep 19 55° 78° 36° (1984) 93° (1978) 0.13" NA
Sep 20 54° 78° 40° (1979) 91° (1965) 0.13" NA
Sep 21 54° 77° 42° (1991) 92° (1998) 0.13" NA
Sep 22 53° 77° 38° (1997) 94° (1980) 0.13" NA
Sep 23 53° 77° 33° (1983) 93° (2005) 0.12" NA
Sep 24 52° 76° 30° (1974) 92° (1970) 0.12" NA
Sep 25 52° 76° 33° (1983) 92° (1970) 0.12" NA
Sep 26 51° 75° 38° (1983) 93° (2007) 0.12" NA
Sep 27 51° 75° 35° (1984) 96° (1998) 0.12" NA
Sep 28 50° 75° 34° (1989) 86° (1998) 0.12" NA
Sep 29 50° 74° 34° (1978) 85° (1986) 0.12" NA
Sep 30 49° 74° 35° (1993) 92° (1986) 0.12" NA
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