Calendar view of measurable snowfall events in Islip, NY beginning with the winter of 1963-64, when snowfall record-keeping began at this location. 
Some snowfall data for the period between 1999-2003 is missing for Islip. Filled gaps using data from JFK airport for that time period.
Updated 12/30/19
November through April Full Calendar | 1963-64 to 2018-19
Snowfall History Full (2019).png
November
Nov Full.png
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Click here for November details
December
Dec Full.png
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Click here for December details
January
Jan Full.png
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Click here for January details
February
Feb Full.png
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Click here for February details
March
Mar Full.png
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Click here for March details
April
Apr Full.png
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Click here for April details
November Measurable Snow Events by Decade
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1970s
Nov 70s.png
1990s
Nov 90s.png
1980s
Nov 80s.png
2000s
Nov 00s.png
2010s
Nov 10s.png
Notable November Storms
 
December Measurable Snow Events by Decade
click on images to enlarge
1970s
Dec 70s.png
1990s
Dec 90s.png
1980s
Dec 80s.png
2000s
Dec 00s.png
2010s
Dec 10s.png
Notable December Storms
 
12/19-12/20, 2009 PNS summary | Accumulation Map
12/26-12/27, 2010 Storm summary | Accumulation Map
12/30-12/31, 2000 Accumulation Map
12/13-12/14, 1988
12/5-12/6, 2003
12/19-12/20, 2008
12/14, 2013 Accumulation Map
12/5-12/6, 2005
 
January Measurable Snow Events by Decade
click on images to enlarge
1970s
Jan 70s.png
1980s
Jan 80s.png
1990s
Jan 90s.png
2000s
Jan 00s.png
2010s
Jan 10s.png
Notable January Storms
 
1/26-1/27, 2015 Storm summary | Accumulation Map
1/23-1/24, 2016 Storm summary | Accumulation Map
1/7-1/8, 1996 Service assessment summary Accumulation Map
1/11-1/12, 2011 Accumulation Map
1/22-1/23. 2005 Accumulation Map
1/26-1/27, 2011 Accumulation Map
1/6-1/7, 2017 Radar loop (OKX base) | Radar loop (Regional)
 
February Measurable Snow Events by Decade
click on images to enlarge
1970s
Feb 70s.png
1980s
Feb 80s.png
1990s
Feb 90s.png
2000s
Feb 00s.png
2010s
Feb 10s.png
Notable February Storms
 
2/8-2/9, 2013 PNS summary
2/16-2/17, 2003 PNS summary
2/11-2/12, 2006 PNS summary
2/9, 2017 Storm summary | Radar loop (OKX base) Radar loop (Regional)
2/1-2/2, 2009
 
March Measurable Snow Events by Decade
click on images to enlarge
1970s
Mar 70s.png
1980s
Mar 80s.png
1990s
Mar 90s.png
2000s
Mar 00s.png
2010s
Mar 10s.png
Notable March Storms
 
3/1-3/2, 2009
3/14, 2017 Accumulation Map
3/21-3/22, 2018
 
April Measurable Snow Events by Decade
click on images to enlarge
1970s
Apr 70s.png
1980s
Apr 80s.png
1990s
Apr 90s.png
2000s
Apr 00s.png
2010s
Apr 10s.png
Notable April Storms