703  
CDUS41 KOKX 262032  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
432 PM EDT FRI SEP 26 2025  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 26 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 85R 257 PM 85 1970 71 14 72  
MINIMUM 66 459 AM 40 1963 55 11 65  
1987  
AVERAGE 76 63 13 69  
 
PRECIPITATION (IN)  
TODAY 0.00 2.39 2008 0.12 -0.12 0.03  
MONTH TO DATE 1.54 3.08 -1.54 0.09  
SINCE SEP 1 1.54 3.08 -1.54 0.09  
SINCE JAN 1 25.32 33.38 -8.06 38.96  
 
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 0 4 -4 0  
MONTH TO DATE 7 36 -29 15  
SINCE SEP 1 7 36 -29 15  
SINCE JUL 1 7 39 -32 16  
 
COOLING  
TODAY 11 2 9 4  
MONTH TO DATE 123 102 21 76  
SINCE SEP 1 123 102 21 76  
SINCE JAN 1 1051 866 185 997    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 AM  
LOWEST 41 200 PM  
AVERAGE 67  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 86 1998  
2017  
MINIMUM TEMPERATURE (F) 55 38 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 26 2025.....SUNRISE 644 AM EDT SUNSET 642 PM EDT  
SEPTEMBER 27 2025.....SUNRISE 645 AM EDT SUNSET 641 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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