Iselin, New Jersey
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 39° -10° (1985) 73° (2007) 4.07" 7.9"
February 21° 42° -6° (1979) 75° (1985) 3.09" 7.7"
March 29° 51° 1° (1986) 90° (1998) 4.18" 3"
April 38° 62° 12° (1995) 97° (2002) 4.15" 0.4"
May 48° 72° 24° (1986) 96° (1996) 4.92" 0"
June 58° 81° 32° (1979) 98° (1988) 4.16" 0"
July 63° 86° 42° (1979) 102° (1999) 5.19" 0"
August 62° 84° 39° (1986) 103° (2001) 4.33" 0"
September 54° 76° 33° (1974) 99° (1983) 4.55" 0"
October 42° 65° 22° (1982) 88° (2007) 3.93" 0"
November 33° 54° 14° (1989) 81° (2003) 4.38" 0.6"
December 26° 44° -5° (1980) 76° (1998) 3.99" 2.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 34° 57° 19° (1969) 87° (1998) 0.14" NA
Apr 2 34° 57° 18° (1987) 80° (1978) 0.14" NA
Apr 3 34° 57° 25° (1978) 81° (1981) 0.14" NA
Apr 4 35° 58° 28° (1969) 76° (1981) 0.14" NA
Apr 5 35° 58° 18° (1995) 80° (1985) 0.13" NA
Apr 6 35° 58° 12° (1995) 77° (1991) 0.13" NA
Apr 7 36° 59° 19° (1982) 87° (1991) 0.13" NA
Apr 8 36° 59° 20° (1982) 90° (1991) 0.13" NA
Apr 9 36° 59° 20° (2000) 87° (1991) 0.13" NA
Apr 10 37° 60° 23° (1985) 83° (2001) 0.13" NA
Apr 11 37° 60° 25° (1997) 75° (1981) 0.13" NA
Apr 12 37° 60° 18° (1976) 90° (1977) 0.13" NA
Apr 13 38° 61° 25° (1990) 87° (1977) 0.13" NA
Apr 14 38° 61° 27° (1975) 83° (1977) 0.13" NA
Apr 15 38° 62° 25° (1978) 78° (2002) 0.14" NA
Apr 16 38° 62° 25° (1981) 92° (2002) 0.14" NA
Apr 17 39° 62° 26° (2005) 95° (2002) 0.14" NA
Apr 18 39° 63° 26° (1978) 97° (2002) 0.14" NA
Apr 19 39° 63° 27° (1977) 95° (1976) 0.14" NA
Apr 20 40° 63° 30° (1979) 88° (2004) 0.14" NA
Apr 21 40° 64° 23° (1981) 88° (2005) 0.14" NA
Apr 22 40° 64° 22° (1981) 87° (1977) 0.14" NA
Apr 23 41° 64° 25° (1975) 87° (2001) 0.14" NA
Apr 24 41° 65° 29° (1989) 87° (2007) 0.14" NA
Apr 25 41° 65° 30° (1974) 87° (2001) 0.14" NA
Apr 26 42° 65° 28° (1987) 82° (1985) 0.15" NA
Apr 27 42° 66° 29° (1987) 93° (1990) 0.15" NA
Apr 28 42° 66° 30° (1972) 92° (1990) 0.15" NA
Apr 29 42° 66° 21° (1977) 91° (1974) 0.15" NA
Apr 30 43° 67° 31° (1977) 89° (1974) 0.15" NA
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