353  
CDUS41 KOKX 220625  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
225 AM EDT THU APR 22 2021  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR APRIL 21 2021
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1963 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 60 112 PM 76 1976 60 0 54  
1996  
2007  
MINIMUM 38 1159 PM 30 1965 42 -4 38  
AVERAGE 49 51 -2 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.23 3.44 2000 0.14 0.09 0.41  
MONTH TO DATE 3.02 3.10 -0.08 2.83  
SINCE MAR 1 6.94 7.54 -0.60 7.03  
SINCE JAN 1 13.01 14.44 -1.43 12.60  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 2020 0.1 -0.1 T  
MONTH TO DATE T 0.6 -0.6 T  
SINCE MAR 1 T 5.1 -5.1 T  
SINCE JUL 1 33.5 24.8 8.7 6.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 14 2 19  
MONTH TO DATE 314 364 -50 366  
SINCE MAR 1 1006 1161 -155 987  
SINCE JUL 1 4526 5056 -530 4417  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 15.0  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 300 PM  
LOWEST 50 1100 PM  
AVERAGE 72  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 75 1985  
2007  
MINIMUM TEMPERATURE (F) 43 29 1975  
 
SUNRISE AND SUNSET  
APRIL 22 2021.........SUNRISE 603 AM EDT SUNSET 740 PM EDT  
APRIL 23 2021.........SUNRISE 601 AM EDT SUNSET 741 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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