750  
CDUS41 KOKX 200623  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK NY  
222 AM EDT FRI APR 20 2018  
 
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR APRIL 19 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 46 111 AM 82 1985 59 -13 51  
MINIMUM 37 1159 PM 27 1965 42 -5 40  
AVERAGE 42 50 -8 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.19 0.79 1983 0.13 0.06 0.03  
MONTH TO DATE 3.24 2.82 0.42 2.00  
SINCE MAR 1 10.91 7.26 3.65 7.45  
SINCE JAN 1 20.86 14.16 6.70 13.11  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 4.6 0.5 4.1 0.0  
SINCE OCT 1 65.9 24.7 41.2 39.3  
SINCE JUL 1 65.9 24.7 41.2 39.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 23 15 8 19  
MONTH TO DATE 409 336 73 257  
SINCE MAR 1 1238 1133 105 1113  
SINCE JUL 1 4738 5028 -290 4415  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE MAR 1 0 0 0 3  
SINCE JAN 1 0 0 0 3    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 10.3  
 
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 51 900 PM  
AVERAGE 76  
   
......................................................
 
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 83 1976  
MINIMUM TEMPERATURE (F) 42 28 1965  
 
 
SUNRISE AND SUNSET  
APRIL 20 2018.........SUNRISE 606 AM EDT SUNSET 737 PM EDT  
APRIL 21 2018.........SUNRISE 605 AM EDT SUNSET 738 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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