788  
CDUS41 KOKX 210618  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK NY  
117 AM EST WED FEB 21 2018  
 
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR FEBRUARY 20 2018
 
 
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)  
YESTERDAY  
MAXIMUM 64R 154 PM 62 2016 41 23 52  
MINIMUM 45 658 AM 2 2015 26 19 32  
AVERAGE 55 34 21 42  
 
PRECIPITATION (IN)  
YESTERDAY T 0.71 1981 0.11 -0.11 0.00  
MONTH TO DATE 5.07 2.21 2.86 1.45  
SINCE DEC 1 10.93 9.91 1.02 9.04  
SINCE JAN 1 8.81 5.85 2.96 5.51  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.8 2005 0.3 -0.3 0.0  
MONTH TO DATE 1.4 5.1 -3.7 14.7  
SINCE OCT 1 29.4 17.7 11.7 31.9  
SINCE JUL 1 29.4 17.7 11.7 31.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 31 -21 23  
MONTH TO DATE 555 658 -103 593  
SINCE DEC 1 2586 2634 -48 2351  
SINCE JUL 1 3337 3650 -313 3142  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 8.6  
 
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 72 100 PM  
AVERAGE 86  
   
......................................................
 
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 63 2002  
MINIMUM TEMPERATURE (F) 26 2 2015  
1968  
 
 
SUNRISE AND SUNSET  
FEBRUARY 21 2018......SUNRISE 638 AM EST SUNSET 534 PM EST  
FEBRUARY 22 2018......SUNRISE 637 AM EST SUNSET 535 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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