193  
CDUS41 KOKX 242037  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
437 PM EDT THU SEP 24 2026  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 24 2026
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 67 233 PM 89 2017 72 -5 80  
MINIMUM 54 1223 AM 38 1963 56 -2 70  
AVERAGE 61 64 -3 75  
 
PRECIPITATION (IN)  
TODAY 0.00 1.23 2021 0.12 -0.12 0.07  
MONTH TO DATE 4.72 2.84 1.88 1.31  
SINCE SEP 1 4.72 2.84 1.88 1.31  
SINCE JAN 1 36.35 33.14 3.21 25.09  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 4 3 1 0  
MONTH TO DATE 12 29 -17 7  
SINCE SEP 1 12 29 -17 7  
SINCE JUL 1 12 32 -20 7  
 
COOLING  
TODAY 0 2 -2 10  
MONTH TO DATE 111 98 13 103  
SINCE SEP 1 111 98 13 103  
SINCE JAN 1 984 862 122 1031    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 16.5  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 100 AM  
LOWEST 50 200 PM  
AVERAGE 64  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 87 2010  
MINIMUM TEMPERATURE (F) 56 38 1963  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2026.....SUNRISE 642 AM EDT SUNSET 646 PM EDT  
SEPTEMBER 25 2026.....SUNRISE 643 AM EDT SUNSET 644 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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