377  
CDUS41 KOKX 010631  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
231 AM EDT TUE APR 01 2025  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR MARCH 31 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 59 136 PM 73 1999 52 7 61  
MINIMUM 46 1213 AM 19 1964 36 10 40  
AVERAGE 53 44 9 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.44 2.52 1987 0.14 0.30 0.03  
MONTH TO DATE 4.76 4.51 0.25 9.54  
SINCE MAR 1 4.76 4.51 0.25 9.54  
SINCE JAN 1 9.08 11.46 -2.38 19.26  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.6 2014 0.1 -0.1 0.0  
MONTH TO DATE 0.0 6.5 -6.5 0.0  
SINCE MAR 1 0.0 6.5 -6.5 0.0  
SINCE JUL 1 11.7 31.2 -19.5 10.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 21 -9 14  
MONTH TO DATE 614 780 -166 591  
SINCE MAR 1 614 780 -166 591  
SINCE JUL 1 4096 4499 -403 3930  
 
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 21 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 12.8  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 87 100 PM  
AVERAGE 94  
   
......................................................
 
 
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 2025.........SUNRISE 635 AM EDT SUNSET 718 PM EDT  
APRIL 2 2025.........SUNRISE 634 AM EDT SUNSET 719 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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