348  
CDUS41 KOKX 210619  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
119 AM EST SAT DEC 21 2024  
   
...............................  
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 20 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 40 302 PM 58 1999 43 -3 44  
2002  
MINIMUM 33 1159 PM 7 1963 29 4 30  
AVERAGE 37 36 1 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 1.34 1995 0.15 -0.10 0.00  
MONTH TO DATE 4.52 3.12 1.40 5.47  
SINCE DEC 1 4.52 3.12 1.40 5.47  
SINCE JAN 1 47.09 44.40 2.69 47.10  
 
SNOWFALL (IN)  
YESTERDAY T 14.3 2009 0.1 -0.1 0.0  
MONTH TO DATE T 2.2 -2.2 T  
SINCE DEC 1 T 2.2 -2.2 T  
SINCE JUL 1 T 2.7 -2.7 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 29 -1 28  
MONTH TO DATE 541 532 9 438  
SINCE DEC 1 541 532 9 438  
SINCE JUL 1 1231 1471 -240 1327  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1012 885 127 955    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 11.8  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 100 PM  
LOWEST 64 100 AM  
AVERAGE 78  
   
......................................................  
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 60 2018  
MINIMUM TEMPERATURE (F) 29 9 2004  
 
SUNRISE AND SUNSET  
DECEMBER 21 2024......SUNRISE 713 AM EST SUNSET 428 PM EST  
DECEMBER 22 2024......SUNRISE 714 AM EST SUNSET 429 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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