166  
CDUS41 KOKX 200626  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
226 AM EDT SUN AUG 20 2023  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 19 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 78 408 PM 91 2002 81 -3 89  
MINIMUM 60 525 AM 54 1968 66 -6 64  
AVERAGE 69 74 -5 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 5.91 1991 0.14 -0.14 0.00  
MONTH TO DATE 4.48 2.68 1.80 0.49  
SINCE JUN 1 13.57 9.94 3.63 4.57  
SINCE JAN 1 29.92 28.74 1.18 24.27  
 
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 JUN 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 28 31 -3 10  
SINCE JUL 1 0 1 -1 0  
 
COOLING  
YESTERDAY 4 9 -5 12  
MONTH TO DATE 171 181 -10 239  
SINCE JUN 1 662 645 17 760  
SINCE JAN 1 686 674 12 811    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.4  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 500 AM  
LOWEST 43 400 PM  
AVERAGE 61  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 94 1983  
MINIMUM TEMPERATURE (F) 66 53 2008  
 
SUNRISE AND SUNSET  
AUGUST 20 2023........SUNRISE 607 AM EDT SUNSET 744 PM EDT  
AUGUST 21 2023........SUNRISE 608 AM EDT SUNSET 742 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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