Chatham, Massachusetts
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° 38° -6° (2004) 61° (2000) 4.23" 9"
February 24° 38° 0° (1996) 57° (1990) 3.98" 12.2"
March 31° 43° 7° (1980) 77° (1998) 4.14" 3.7"
April 39° 50° 19° (1982) 80° (1990) 3.95" 0.8"
May 48° 59° 33° (1995) 88° (2007) 3.71" 0"
June 56° 68° 44° (1997) 89° (1994) 3.44" 0"
July 62° 75° 51° (1988) 95° (1999) 3.38" 0"
August 62° 74° 47° (1976) 93° (1975) 3.33" 0"
September 57° 69° 40° (1992) 84° (1977) 3.91" 0"
October 47° 60° 31° (1988) 80° (1997) 4.12" 0"
November 39° 51° 19° (1989) 68° (1994) 3.89" 0.6"
December 30° 43° 0° (1980) 69° (1998) 4.63" 3.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 44° 55° 34° (1978) 71° (1974) 0.13" NA
May 2 44° 55° 34° (1978) 73° (2001) 0.12" NA
May 3 44° 55° 39° (1978) 73° (2001) 0.12" NA
May 4 44° 56° 39° (1985) 74° (2001) 0.12" NA
May 5 45° 56° 39° (1978) 76° (2000) 0.12" NA
May 6 45° 56° 39° (1978) 65° (2006) 0.12" NA
May 7 45° 56° 35° (1996) 73° (2000) 0.12" NA
May 8 46° 57° 33° (1995) 82° (2000) 0.12" NA
May 9 46° 57° 38° (1985) 78° (2000) 0.12" NA
May 10 46° 57° 39° (1977) 78° (1979) 0.12" NA
May 11 47° 58° 41° (1977) 78° (2004) 0.12" NA
May 12 47° 58° 41° (1996) 72° (2001) 0.12" NA
May 13 47° 58° 41° (1982) 67° (1977) 0.12" NA
May 14 47° 58° 38° (1996) 70° (1994) 0.12" NA
May 15 48° 59° 37° (1998) 73° (1976) 0.12" NA
May 16 48° 59° 40° (1998) 72° (1974) 0.12" NA
May 17 48° 59° 40° (1992) 69° (1974) 0.12" NA
May 18 48° 60° 41° (1981) 83° (1977) 0.12" NA
May 19 49° 60° 40° (1991) 65° (1975) 0.12" NA
May 20 49° 60° 41° (1992) 77° (1996) 0.12" NA
May 21 49° 61° 42° (1994) 74° (1996) 0.12" NA
May 22 50° 61° 43° (1990) 78° (1992) 0.12" NA
May 23 50° 61° 42° (1990) 72° (1992) 0.12" NA
May 24 50° 61° 42° (1990) 76° (1981) 0.12" NA
May 25 50° 62° 43° (1987) 71° (2007) 0.12" NA
May 26 51° 62° 44° (1987) 88° (2007) 0.12" NA
May 27 51° 62° 41° (1974) 76° (1977) 0.12" NA
May 28 51° 63° 42° (1992) 79° (1975) 0.12" NA
May 29 52° 63° 44° (1985) 78° (1975) 0.12" NA
May 30 52° 63° 46° (1974) 75° (1987) 0.11" NA
May 31 52° 64° 46° (1974) 79° (1988) 0.11" NA
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