722  
CDUS41 KOKX 100624  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
224 AM EDT SUN SEP 10 2023  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 9 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 157 PM 91 2016 77 7 79  
MINIMUM 76 1008 PM 45 1986 61 15 56  
AVERAGE 80 69 11 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.72 1969 0.11 -0.11 0.00  
MONTH TO DATE 0.00 1.01 -1.01 0.67  
SINCE SEP 1 0.00 1.01 -1.01 0.67  
SINCE JAN 1 30.53 31.31 -0.78 25.12  
 
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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 2 -2 0  
SINCE SEP 1 0 2 -2 0  
SINCE JUL 1 0 5 -5 0  
 
COOLING  
YESTERDAY 15 5 10 3  
MONTH TO DATE 109 50 59 66  
SINCE SEP 1 109 50 59 66  
SINCE JAN 1 887 814 73 1039    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 7.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 500 AM  
LOWEST 70 200 PM  
AVERAGE 84  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 90 1983  
MINIMUM TEMPERATURE (F) 61 39 1975  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2023.....SUNRISE 628 AM EDT SUNSET 710 PM EDT  
SEPTEMBER 11 2023.....SUNRISE 629 AM EDT SUNSET 709 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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