East Islip, New York
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° 38° -7° (1988) 69° (2002) 3.64" 6.7"
February 25° 40° 1° (1996) 67° (1991) 3.4" 7.1"
March 31° 47° 5° (2009) 82° (1990) 4.44" 4.5"
April 41° 58° 23° (2008) 94° (2002) 4.34" 0.6"
May 50° 68° 32° (2008) 98° (1996) 3.78" 0"
June 60° 77° 42° (2009) 96° (1994) 4.27" 0"
July 66° 82° 50° (1988) 102° (1999) 3.43" 0"
August 65° 80° 45° (1986) 100° (2001) 3.98" 0"
September 58° 74° 38° (1997) 92° (1998) 3.58" 0"
October 46° 63° 28° (1985) 88° (2007) 3.79" 0"
November 37° 53° 11° (1989) 78° (1990) 3.67" 0.6"
December 28° 43° 5° (2004) 77° (1998) 4.06" 5.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 33° 48° 18° (1989) 67° (2001) 0.14" 0.1"
Dec 2 32° 48° 12° (1989) 60° (1998) 0.14" 0.1"
Dec 3 32° 47° 18° (1989) 67° (1998) 0.14" 0"
Dec 4 32° 47° 15° (2002) 73° (1998) 0.14" 0.1"
Dec 5 31° 46° 21° (2000) 70° (2001) 0.14" 0.1"
Dec 6 31° 46° 13° (2002) 67° (1998) 0.14" 0.1"
Dec 7 31° 46° 8° (2002) 77° (1998) 0.14" 0.2"
Dec 8 31° 45° 18° (2008) 59° (2004) 0.14" 0.1"
Dec 9 30° 45° 16° (2002) 66° (1991) 0.14" 0.1"
Dec 10 30° 45° 13° (2010) 58° (1987) 0.14" 0.2"
Dec 11 30° 44° 11° (1988) 57° (2006) 0.14" 0.1"
Dec 12 29° 44° 7° (1988) 60° (2008) 0.14" 0.2"
Dec 13 29° 44° 14° (1988) 60° (1990) 0.13" 0.1"
Dec 14 29° 43° 14° (2005) 58° (2001) 0.13" 0.2"
Dec 15 28° 43° 12° (2005) 59° (2008) 0.13" 0.2"
Dec 16 28° 43° 10° (1988) 56° (1997) 0.13" 0.2"
Dec 17 28° 42° 13° (1991) 62° (1984) 0.13" 0.2"
Dec 18 27° 42° 16° (1989) 59° (1984) 0.13" 0.2"
Dec 19 27° 42° 9° (1989) 54° (1997) 0.12" 0.2"
Dec 20 27° 42° 8° (1985) 58° (2002) 0.13" 0.2"
Dec 21 27° 41° 9° (2004) 57° (1999) 0.13" 0.2"
Dec 22 26° 41° 9° (1989) 58° (1998) 0.12" 0.2"
Dec 23 26° 41° 8° (1989) 59° (2006) 0.13" 0.2"
Dec 24 26° 41° 12° (1989) 57° (1990) 0.13" 0.2"
Dec 25 26° 40° 12° (1989) 56° (1994) 0.13" 0.2"
Dec 26 25° 40° 11° (1998) 54° (2006) 0.12" 0.3"
Dec 27 25° 40° 8° (1989) 55° (2009) 0.12" 0.2"
Dec 28 25° 40° 5° (2004) 56° (2008) 0.12" 0.3"
Dec 29 25° 40° 13° (1993) 65° (1984) 0.12" 0.2"
Dec 30 25° 39° 9° (1987) 60° (1984) 0.11" 0.3"
Dec 31 24° 39° 12° (1993) 59° (1992) 0.12" 0.2"
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