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
Jan 1 22° 40° 10° (1997) 63° (1973) 0.13" NA
Jan 2 22° 40° 7° (1999) 64° (2005) 0.13" NA
Jan 3 21° 40° 1° (2001) 62° (1979) 0.13" NA
Jan 4 21° 40° 1° (2001) 65° (2000) 0.13" NA
Jan 5 21° 40° 3° (1981) 67° (1998) 0.13" NA
Jan 6 21° 40° 3° (1996) 68° (2007) 0.13" NA
Jan 7 21° 40° 7° (1988) 73° (2007) 0.13" NA
Jan 8 21° 40° 1° (1981) 58° (1998) 0.14" NA
Jan 9 20° 39° -5° (1981) 69° (1998) 0.14" NA
Jan 10 20° 39° 0° (2004) 67° (1998) 0.14" NA
Jan 11 20° 39° -4° (1988) 65° (1975) 0.14" NA
Jan 12 20° 39° -7° (1981) 60° (1980) 0.14" NA
Jan 13 20° 39° -8° (1981) 61° (1995) 0.14" NA
Jan 14 20° 39° 5° (1974) 70° (1995) 0.14" NA
Jan 15 20° 39° -3° (1988) 69° (1995) 0.14" NA
Jan 16 19° 39° -1° (1994) 67° (1995) 0.13" NA
Jan 17 19° 39° -6° (1982) 63° (1990) 0.13" NA
Jan 18 19° 39° -7° (1982) 65° (1990) 0.13" NA
Jan 19 19° 39° -7° (1994) 65° (1986) 0.13" NA
Jan 20 19° 39° -4° (1994) 61° (2006) 0.13" NA
Jan 21 19° 39° -10° (1985) 62° (2006) 0.13" NA
Jan 22 19° 39° -1° (1985) 64° (2006) 0.13" NA
Jan 23 19° 39° -2° (1976) 59° (1973) 0.13" NA
Jan 24 19° 39° 1° (1987) 63° (1989) 0.13" NA
Jan 25 19° 39° 2° (2004) 61° (1993) 0.13" NA
Jan 26 19° 39° 5° (1982) 59° (1978) 0.13" NA
Jan 27 19° 39° -6° (1994) 68° (1974) 0.13" NA
Jan 28 19° 39° -2° (1987) 67° (1974) 0.12" NA
Jan 29 19° 39° -2° (1977) 62° (2002) 0.12" NA
Jan 30 19° 39° -1° (1977) 71° (2002) 0.12" NA
Jan 31 19° 40° 6° (1977) 62° (2002) 0.12" NA
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