Grafton, New York
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 29° -27° (1968) 61° (1995) 3.09" 18.3"
February 15° 32° -23° (1979) 62° (1981) 2.45" 17.8"
March 23° 41° -11° (1989) 83° (1998) 3.39" 11.6"
April 34° 54° 5° (1982) 88° (2002) 3.88" 5.8"
May 46° 67° 21° (1966) 88° (1962) 4.63" 0.7"
June 54° 74° 32° (1986) 92° (1964) 4.67" 0"
July 58° 78° 39° (1963) 93° (1995) 4.34" 0"
August 57° 76° 32° (1982) 94° (2002) 4.81" 0"
September 49° 68° 26° (1957) 95° (1953) 4.19" 0"
October 39° 57° 15° (1976) 83° (1963) 4.05" 0.9"
November 30° 44° 0° (1958) 78° (1950) 3.98" 7.4"
December 19° 33° -23° (1980) 67° (1966) 2.99" 17.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 40° 61° 23° (1978) 82° (2001) 0.14" NA
May 2 41° 61° 24° (1978) 85° (2001) 0.14" NA
May 3 41° 62° 24° (1957) 85° (2001) 0.14" NA
May 4 42° 62° 26° (1978) 83° (2001) 0.14" NA
May 5 42° 63° 25° (1974) 82° (1955) 0.14" NA
May 6 42° 63° 30° (1967) 82° (2000) 0.14" NA
May 7 43° 64° 25° (1970) 85° (2000) 0.14" NA
May 8 43° 64° 23° (1956) 84° (1979) 0.14" NA
May 9 43° 64° 26° (1956) 87° (1979) 0.15" NA
May 10 44° 65° 21° (1966) 87° (1979) 0.15" NA
May 11 44° 65° 25° (1963) 85° (1979) 0.15" NA
May 12 45° 66° 31° (1990) 82° (2004) 0.15" NA
May 13 45° 66° 29° (1967) 82° (1985) 0.15" NA
May 14 45° 66° 31° (1951) 80° (2004) 0.15" NA
May 15 46° 67° 31° (2002) 82° (1961) 0.15" NA
May 16 46° 67° 32° (1955) 83° (1991) 0.15" NA
May 17 46° 67° 27° (1956) 83° (1977) 0.15" NA
May 18 47° 68° 28° (1981) 88° (1962) 0.15" NA
May 19 47° 68° 28° (2002) 88° (1962) 0.15" NA
May 20 47° 68° 27° (2002) 86° (1975) 0.15" NA
May 21 47° 69° 28° (2002) 85° (1959) 0.15" NA
May 22 48° 69° 32° (2002) 86° (1975) 0.15" NA
May 23 48° 69° 32° (1967) 87° (1975) 0.15" NA
May 24 48° 69° 27° (1963) 85° (1964) 0.15" NA
May 25 49° 70° 26° (1956) 84° (1981) 0.15" NA
May 26 49° 70° 34° (1956) 84° (1965) 0.16" NA
May 27 49° 70° 31° (1969) 83° (1959) 0.16" NA
May 28 50° 70° 33° (1961) 83° (1959) 0.16" NA
May 29 50° 70° 34° (1957) 86° (1959) 0.16" NA
May 30 50° 71° 33° (1965) 86° (1987) 0.16" NA
May 31 50° 71° 32° (1961) 85° (1978) 0.16" NA
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