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Islip Data

Average Temperature for Dec-Feb
(Warmest Rankings)
Temperature Date
38.7 2001-2002
38.5 1997-1998
38.3 2011-2012
36.9 1994-1995
36.5 1998-1998
  Normal: 33.0

 

Average High Temperature for Dec-Feb
(Warmest Rankings)
Temperature Date
47.1 2001-2002
46.8 2011-2012
46.0 1997-1998
45.2 1998-1999
44.8 1990-1991/1994-1995
  Normal: 40.4

 

Average Low Temperature for Dec-Feb
(Warmest Rankings)
Temperature Date
30.9 1997-1998
30.2 2001-2002
29.8 2011-2012
29.0 1994-1995
27.8 1998-1999/1996-1997
  Normal: 25.6

 

Total Snowfall for Dec-Feb
(Least Rankings)
Snowfall (inches) Date
1.0 1997-1998
4.2 1989-1990
4.4 2011-2012
5.1 1994-1995
5.2 2006-2007
  Normal: 19.2

 

Total Precipitation for Dec-Feb
(Least Rankings)
Precipitation (inches) Date
5.38 2001-2002
5.68 1984-1985
6.86 2011-2012
7.47 1985-1986
7.94 1999-2000
  Normal: 10.96

 

Records Set During Dec-Feb 2011-2012
Type of Record Value Date(s) of Previous Record
Tied Warmest Ave. High Temperature- December 49.4 49.4- 2001
Tied Least Snowiest December 0.0 2006/2003/1994
Tied Warmest Ave. High Temperature- February 46.4 46.4- 2002