749  
CDUS41 KOKX 120618  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
218 AM EDT THU SEP 12 2024  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 11 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 77 1118 AM 92 1983 76 1 81  
MINIMUM 55 524 AM 45 1969 61 -6 69  
AVERAGE 66 69 -3 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.19 2023 0.11 -0.11 1.19  
MONTH TO DATE 0.06 1.24 -1.18 1.47  
SINCE SEP 1 0.06 1.24 -1.18 1.47  
SINCE JAN 1 38.93 31.54 7.39 32.00  
 
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 0 1 -1 0  
MONTH TO DATE 5 4 1 0  
SINCE SEP 1 5 4 1 0  
SINCE JUL 1 6 7 -1 0  
 
COOLING  
YESTERDAY 1 4 -3 10  
MONTH TO DATE 26 59 -33 131  
SINCE SEP 1 26 59 -33 131  
SINCE JAN 1 947 823 124 909    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1100 PM  
LOWEST 37 1100 AM  
AVERAGE 65  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 90 2005  
MINIMUM TEMPERATURE (F) 60 45 1993  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2024.....SUNRISE 631 AM EDT SUNSET 706 PM EDT  
SEPTEMBER 13 2024.....SUNRISE 632 AM EDT SUNSET 704 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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