547  
CDUS41 KOKX 112146  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK NY  
445 PM EST TUE DEC 11 2018  
 
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 11 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1963 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 42 233 PM 65 1971 44 -2 42  
MINIMUM 20 707 AM 5 1968 30 -10 29  
AVERAGE 31 37 -6 36  
 
PRECIPITATION (IN)  
TODAY 0.00 2.65 1992 0.14 -0.14 T  
MONTH TO DATE 1.18 1.54 -0.36 0.85  
SINCE DEC 1 1.18 1.54 -0.36 0.85  
SINCE JAN 1 58.85 43.72 15.13 42.17  
 
SNOWFALL (IN)  
TODAY 0.0 1.2 1986 0.1 -0.1 T  
MONTH TO DATE T 1.2 -1.2 1.3  
SINCE OCT 1 4.3 1.7 2.6 1.3  
SINCE JUL 1 4.3 1.7 2.6 1.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 34 28 6 29  
MONTH TO DATE 326 290 36 265  
SINCE DEC 1 326 290 36 265  
SINCE JUL 1 1293 1306 -13 1016  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1115 787 328 972    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 2.7  
 
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 600 AM  
LOWEST 51 200 PM  
AVERAGE 72  
   
......................................................
 
 
 
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 68 2015  
MINIMUM TEMPERATURE (F) 29 7 1988  
 
 
SUNRISE AND SUNSET  
DECEMBER 11 2018......SUNRISE 706 AM EST SUNSET 425 PM EST  
DECEMBER 12 2018......SUNRISE 707 AM EST SUNSET 425 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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