Williamstown, West Virginia
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° 38° -23° (1994) 74° (2005) 3.14" NA
February 22° 43° -10° (1977) 77° (2000) 2.89" NA
March 30° 53° 0° (1980) 85° (1986) 3.71" NA
April 39° 64° 19° (1982) 91° (1990) 3.1" NA
May 50° 74° 26° (1966) 93° (1987) 4.18" NA
June 59° 81° 37° (1977) 99° (1988) 4.41" NA
July 64° 85° 44° (1988) 102° (1988) 4.33" NA
August 62° 83° 38° (1986) 100° (1988) 4.08" NA
September 55° 77° 33° (1995) 97° (2002) 3.36" NA
October 42° 66° 20° (1976) 91° (2007) 2.7" NA
November 34° 54° 10° (1976) 81° (1987) 3.12" NA
December 26° 43° -11° (1989) 78° (1982) 3.33" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 45° 69° 29° (1978) 86° (1970) 0.11" NA
May 2 45° 69° 28° (1963) 86° (2007) 0.12" NA
May 3 46° 70° 30° (1978) 86° (1969) 0.12" NA
May 4 46° 70° 31° (1971) 87° (2001) 0.12" NA
May 5 46° 70° 31° (1973) 87° (1969) 0.12" NA
May 6 47° 71° 29° (1968) 88° (1965) 0.12" NA
May 7 47° 71° 29° (1970) 87° (1969) 0.13" NA
May 8 48° 71° 32° (1974) 88° (1965) 0.13" NA
May 9 48° 72° 31° (1983) 89° (1963) 0.13" NA
May 10 48° 72° 26° (1966) 89° (1979) 0.13" NA
May 11 49° 72° 31° (1966) 89° (1979) 0.13" NA
May 12 49° 72° 34° (1997) 88° (1982) 0.13" NA
May 13 49° 73° 32° (1996) 88° (1982) 0.13" NA
May 14 50° 73° 31° (1996) 90° (1985) 0.13" NA
May 15 50° 73° 31° (1996) 89° (1965) 0.14" NA
May 16 51° 74° 31° (1977) 88° (1965) 0.14" NA
May 17 51° 74° 33° (1984) 88° (1977) 0.14" NA
May 18 51° 74° 37° (1973) 90° (1982) 0.14" NA
May 19 52° 74° 34° (2002) 91° (1964) 0.14" NA
May 20 52° 75° 34° (2002) 90° (1977) 0.14" NA
May 21 52° 75° 37° (1993) 91° (1970) 0.14" NA
May 22 53° 75° 31° (2002) 90° (1970) 0.14" NA
May 23 53° 76° 31° (2002) 90° (1964) 0.14" NA
May 24 53° 76° 35° (1963) 89° (1991) 0.14" NA
May 25 54° 76° 40° (2006) 92° (1991) 0.14" NA
May 26 54° 76° 40° (1976) 91° (1991) 0.14" NA
May 27 54° 77° 38° (1983) 90° (1978) 0.15" NA
May 28 54° 77° 38° (1971) 91° (1987) 0.15" NA
May 29 55° 77° 39° (1964) 93° (1987) 0.15" NA
May 30 55° 77° 40° (1966) 91° (1988) 0.15" NA
May 31 55° 78° 39° (1966) 92° (1988) 0.15" NA
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