722  
CDUS41 KOKX 010621  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
221 AM EDT WED APR 01 2026  
   
...............................  
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR MARCH 31 2026  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 115 PM 73 1999 52 14 59  
MINIMUM 49 255 AM 19 1964 36 13 46  
AVERAGE 58 44 14 53  
 
PRECIPITATION (IN)  
YESTERDAY T 2.52 1987 0.14 -0.14 0.44  
MONTH TO DATE 4.19 4.51 -0.32 4.76  
SINCE MAR 1 4.19 4.51 -0.32 4.76  
SINCE JAN 1 10.43 11.46 -1.03 9.08  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.6 2014 0.1 -0.1 0.0  
MONTH TO DATE 0.2 6.5 -6.3 0.0  
SINCE MAR 1 0.2 6.5 -6.3 0.0  
SINCE JUL 1 61.8 31.2 30.6 11.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 21 -14 12  
MONTH TO DATE 717 780 -63 614  
SINCE MAR 1 717 780 -63 614  
SINCE JUL 1 4573 4499 74 4096  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 12.8  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 400 AM  
LOWEST 56 100 PM  
AVERAGE 71  
   
......................................................  
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 67 1999  
MINIMUM TEMPERATURE (F) 37 16 1969  
 
SUNRISE AND SUNSET  
APRIL 1 2026.........SUNRISE 636 AM EDT SUNSET 717 PM EDT  
APRIL 2 2026.........SUNRISE 634 AM EDT SUNSET 718 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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