Alton, New Hampshire
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 29° -24° (1994) 64° (2007) 2.87" 20.4"
February 13° 34° -17° (1988) 63° (1997) 3.01" 14.2"
March 22° 43° -11° (2003) 78° (1977) 3.35" 7.3"
April 34° 56° 12° (1995) 92° (2002) 3.72" 1.6"
May 45° 68° 29° (1997) 95° (1987) 3.71" 0.1"
June 55° 76° 38° (1986) 96° (1994) 4.36" 0"
July 61° 82° 45° (1988) 98° (1991) 4.3" 0"
August 59° 81° 40° (1988) 100° (1987) 3.73" 0"
September 51° 72° 30° (2000) 95° (2002) 3.44" 0"
October 40° 60° 24° (2002) 83° (1990) 4.5" 0.1"
November 31° 47° 7° (1989) 75° (1990) 3.9" 1.9"
December 20° 35° -13° (1989) 69° (1998) 3.37" 10.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 56° 78° 42° (1976) 92° (2010) 0.09" 0"
Sep 2 56° 77° 44° (1991) 94° (2010) 0.1" 0"
Sep 3 56° 77° 43° (1987) 94° (2010) 0.11" 0"
Sep 4 55° 77° 41° (1987) 93° (2010) 0.09" 0"
Sep 5 55° 76° 41° (2000) 91° (1999) 0.1" 0"
Sep 6 55° 76° 41° (2000) 88° (2008) 0.1" 0"
Sep 7 55° 76° 40° (1984) 87° (1983) 0.11" 0"
Sep 8 54° 75° 42° (1990) 90° (2007) 0.1" 0"
Sep 9 54° 75° 42° (1979) 91° (2002) 0.1" 0"
Sep 10 54° 75° 43° (1979) 95° (2002) 0.11" 0"
Sep 11 53° 74° 41° (1995) 93° (2002) 0.11" 0"
Sep 12 53° 74° 39° (1985) 91° (1983) 0.12" 0"
Sep 13 53° 74° 38° (1985) 86° (2005) 0.11" 0"
Sep 14 52° 73° 39° (1985) 89° (2005) 0.11" 0"
Sep 15 52° 73° 39° (1986) 87° (2005) 0.12" 0"
Sep 16 51° 72° 38° (1984) 87° (1993) 0.11" 0"
Sep 17 51° 72° 37° (2007) 85° (1991) 0.11" 0"
Sep 18 51° 72° 40° (1984) 85° (1991) 0.12" 0"
Sep 19 50° 71° 38° (1990) 85° (1992) 0.12" 0"
Sep 20 50° 71° 34° (1979) 86° (1983) 0.12" 0"
Sep 21 49° 70° 35° (1979) 89° (1983) 0.13" 0"
Sep 22 49° 70° 36° (1991) 85° (1983) 0.12" 0"
Sep 23 49° 69° 38° (1997) 83° (1989) 0.12" 0"
Sep 24 48° 69° 34° (1992) 79° (1984) 0.13" 0"
Sep 25 48° 69° 34° (1992) 81° (2010) 0.13" 0"
Sep 26 47° 68° 36° (1987) 84° (2007) 0.13" 0"
Sep 27 47° 68° 36° (1987) 87° (2007) 0.13" 0"
Sep 28 46° 67° 34° (1989) 81° (1998) 0.13" 0"
Sep 29 46° 67° 30° (2000) 76° (1990) 0.13" 0"
Sep 30 46° 66° 31° (2000) 81° (1987) 0.13" 0"
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