Iselin, New Jersey
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° 40° -10° (1985) 73° (2007) 3.69" 6.2"
February 24° 44° -6° (1979) 75° (1985) 3.32" 8.1"
March 30° 52° 1° (1986) 90° (1998) 4.3" 3.7"
April 39° 63° 12° (1995) 97° (2002) 4.33" 0.5"
May 48° 73° 24° (1986) 96° (1996) 4.36" 0"
June 59° 82° 32° (1979) 98° (1988) 4.39" 0"
July 64° 86° 42° (1979) 102° (1999) 5.17" 0"
August 62° 85° 39° (1986) 103° (2001) 3.79" 0"
September 55° 77° 33° (1974) 99° (1983) 4.45" 0"
October 43° 66° 22° (1982) 88° (2007) 4.36" 0"
November 35° 56° 14° (1989) 81° (2003) 4.08" 0.4"
December 27° 44° -5° (1980) 76° (1998) 4.16" 4.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 60° 82° 48° (1970) 96° (2010) 0.12" 0"
Sep 2 60° 82° 46° (1970) 98° (1980) 0.12" 0"
Sep 3 59° 82° 45° (1991) 96° (1980) 0.13" 0"
Sep 4 59° 81° 45° (1976) 96° (1973) 0.14" 0"
Sep 5 59° 81° 42° (1978) 93° (2008) 0.13" 0"
Sep 6 59° 81° 44° (1984) 96° (1983) 0.13" 0"
Sep 7 58° 80° 39° (1984) 92° (1983) 0.14" 0"
Sep 8 58° 80° 41° (1984) 89° (2007) 0.14" 0"
Sep 9 58° 80° 41° (1986) 91° (1971) 0.13" 0"
Sep 10 57° 79° 39° (1975) 99° (1983) 0.14" 0"
Sep 11 57° 79° 43° (1969) 99° (1983) 0.14" 0"
Sep 12 56° 79° 37° (1977) 91° (1983) 0.14" 0"
Sep 13 56° 78° 41° (1985) 93° (2005) 0.15" 0"
Sep 14 56° 78° 37° (1975) 95° (2005) 0.14" 0"
Sep 15 55° 78° 36° (1975) 92° (2008) 0.16" 0"
Sep 16 55° 77° 38° (1983) 94° (1991) 0.16" 0"
Sep 17 55° 77° 39° (1986) 93° (1991) 0.16" 0"
Sep 18 54° 77° 37° (1990) 90° (1991) 0.16" 0"
Sep 19 54° 76° 40° (1984) 94° (1983) 0.15" 0"
Sep 20 53° 76° 35° (1979) 92° (1983) 0.16" 0"
Sep 21 53° 75° 41° (1991) 91° (1983) 0.16" 0"
Sep 22 52° 75° 37° (1997) 92° (1970) 0.16" 0"
Sep 23 52° 75° 38° (1976) 95° (1970) 0.15" 0"
Sep 24 51° 74° 33° (1974) 91° (1970) 0.16" 0"
Sep 25 51° 74° 35° (1997) 90° (1970) 0.16" 0"
Sep 26 51° 73° 37° (1978) 91° (1970) 0.16" 0"
Sep 27 50° 73° 38° (1984) 90° (2007) 0.16" 0"
Sep 28 50° 73° 34° (1989) 90° (1998) 0.16" 0"
Sep 29 49° 72° 34° (1978) 81° (1987) 0.17" 0"
Sep 30 49° 72° 34° (1981) 88° (1986) 0.17" 0"
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