123  
CDUS41 KOKX 110617  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
117 AM EST MON DEC 11 2023  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 10 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 59 1006 PM 61 2015 46 13 40  
MINIMUM 46 246 AM 6 1968 31 15 33  
AVERAGE 53 38 15 37  
 
PRECIPITATION (IN)  
YESTERDAY 1.59R 1.00 1994 0.17 1.42 0.00  
MONTH TO DATE 2.68 1.57 1.11 2.25  
SINCE DEC 1 2.68 1.57 1.11 2.25  
SINCE JAN 1 44.31 42.85 1.46 37.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.9 2013 0.1 -0.1 0.0  
MONTH TO DATE T 0.8 -0.8 0.0  
SINCE DEC 1 T 0.8 -0.8 0.0  
SINCE JUL 1 T 1.3 -1.3 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 26 -14 28  
MONTH TO DATE 209 253 -44 223  
SINCE DEC 1 209 253 -44 223  
SINCE JUL 1 1098 1192 -94 1015  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 955 885 70 1136    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 11.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 93 900 AM  
AVERAGE 97  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 65 1971  
MINIMUM TEMPERATURE (F) 31 5 1968  
 
SUNRISE AND SUNSET  
DECEMBER 11 2023......SUNRISE 706 AM EST SUNSET 425 PM EST  
DECEMBER 12 2023......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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