612  
CDUS41 KOKX 272100  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
500 PM EDT SAT SEP 27 2025  
   
...............................  
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 27 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 82 1207 PM 86 1998 71 11 74  
2017  
MINIMUM 63 557 AM 38 1965 55 8 63  
AVERAGE 73 63 10 69  
 
PRECIPITATION (IN)  
TODAY 0.00 1.25 1975 0.12 -0.12 0.02  
MONTH TO DATE 1.54 3.20 -1.66 0.11  
SINCE SEP 1 1.54 3.20 -1.66 0.11  
SINCE JAN 1 25.32 33.50 -8.18 38.98  
 
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 40 -33 15  
SINCE SEP 1 7 40 -33 15  
SINCE JUL 1 7 43 -36 16  
 
COOLING  
TODAY 8 2 6 4  
MONTH TO DATE 131 104 27 80  
SINCE SEP 1 131 104 27 80  
SINCE JAN 1 1059 868 191 1001    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 2.6  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 45 1200 PM  
AVERAGE 69  
   
......................................................  
 
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 80 2015  
MINIMUM TEMPERATURE (F) 54 38 1989  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2025.....SUNRISE 645 AM EDT SUNSET 641 PM EDT  
SEPTEMBER 28 2025.....SUNRISE 646 AM EDT SUNSET 639 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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