Dulles, 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
Apr 1 36° 61° 17° (1969) 85° (1978) 0.11" NA
Apr 2 36° 61° 21° (1964) 86° (1967) 0.11" NA
Apr 3 37° 62° 23° (1991) 86° (1981) 0.11" NA
Apr 4 37° 62° 22° (1965) 81° (1999) 0.11" NA
Apr 5 37° 62° 22° (1965) 83° (1985) 0.11" NA
Apr 6 37° 63° 24° (1966) 86° (2005) 0.11" NA
Apr 7 38° 63° 21° (1977) 84° (1991) 0.1" NA
Apr 8 38° 64° 24° (1970) 87° (1991) 0.1" NA
Apr 9 38° 64° 23° (1977) 89° (2001) 0.1" NA
Apr 10 39° 64° 19° (1985) 78° (1992) 0.1" NA
Apr 11 39° 65° 25° (1971) 87° (1977) 0.1" NA
Apr 12 39° 65° 23° (1982) 87° (1977) 0.1" NA
Apr 13 39° 65° 24° (1990) 87° (1977) 0.1" NA
Apr 14 40° 66° 20° (1975) 84° (1967) 0.1" NA
Apr 15 40° 66° 28° (1997) 87° (1967) 0.1" NA
Apr 16 40° 66° 28° (1981) 91° (2002) 0.1" NA
Apr 17 41° 67° 27° (1983) 93° (2002) 0.1" NA
Apr 18 41° 67° 31° (1996) 90° (1976) 0.11" NA
Apr 19 41° 67° 27° (2001) 91° (2002) 0.11" NA
Apr 20 41° 67° 28° (1974) 88° (1985) 0.11" NA
Apr 21 42° 68° 29° (1983) 89° (1985) 0.11" NA
Apr 22 42° 68° 27° (1975) 92° (1985) 0.11" NA
Apr 23 42° 68° 30° (1989) 88° (2001) 0.11" NA
Apr 24 43° 69° 30° (1989) 85° (1994) 0.11" NA
Apr 25 43° 69° 29° (1969) 88° (1994) 0.11" NA
Apr 26 43° 69° 31° (1967) 92° (1990) 0.11" NA
Apr 27 44° 69° 31° (1987) 92° (1990) 0.11" NA
Apr 28 44° 70° 32° (1993) 88° (1990) 0.12" NA
Apr 29 44° 70° 32° (1987) 87° (1996) 0.12" NA
Apr 30 45° 70° 29° (1977) 86° (2007) 0.12" NA
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