815  
CDUS41 KOKX 250617  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
217 AM EDT WED SEP 25 2024  
   
...............................  
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 24 2024  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 158 PM 89 2017 72 -5 64  
MINIMUM 53 428 AM 38 1963 56 -3 62  
AVERAGE 60 64 -4 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.23 2021 0.12 -0.12 0.74  
MONTH TO DATE 0.06 2.84 -2.78 3.87  
SINCE SEP 1 0.06 2.84 -2.78 3.87  
SINCE JAN 1 38.93 33.14 5.79 34.40  
 
SNOWFALL (IN)  
YESTERDAY 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  
YESTERDAY 5 3 2 2  
MONTH TO DATE 13 29 -16 14  
SINCE SEP 1 13 29 -16 14  
SINCE JUL 1 14 32 -18 14  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 72 98 -26 158  
SINCE SEP 1 72 98 -26 158  
SINCE JAN 1 993 862 131 936    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 7.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 400 AM  
LOWEST 57 200 PM  
AVERAGE 74  
   
......................................................  
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 87 2010  
MINIMUM TEMPERATURE (F) 56 38 1963  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2024.....SUNRISE 643 AM EDT SUNSET 644 PM EDT  
SEPTEMBER 26 2024.....SUNRISE 644 AM EDT SUNSET 642 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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