011  
CDUS41 KOKX 210621  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
221 AM EDT TUE MAY 21 2024  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 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 69 1141 AM 98 1996 69 0 65  
MINIMUM 52 506 AM 35 1992 52 0 57  
AVERAGE 61 61 0 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.73 2023 0.10 -0.10 1.73  
MONTH TO DATE 2.86 2.03 0.83 1.89  
SINCE MAR 1 15.85 10.60 5.25 9.74  
SINCE JAN 1 25.57 17.55 8.02 16.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.0 7.1 -7.1 1.6  
SINCE JUL 1 10.9 31.8 -20.9 5.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 5 -1 4  
MONTH TO DATE 137 151 -14 142  
SINCE MAR 1 1162 1391 -229 1211  
SINCE JUL 1 4501 5110 -609 4350  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 1 7 -6 12  
SINCE MAR 1 5 9 -4 24  
SINCE JAN 1 5 9 -4 24    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 200 AM  
LOWEST 65 1100 AM  
AVERAGE 81  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 90 1996  
2022  
MINIMUM TEMPERATURE (F) 52 39 2002  
2020  
 
SUNRISE AND SUNSET  
MAY 21 2024...........SUNRISE 530 AM EDT SUNSET 809 PM EDT  
MAY 22 2024...........SUNRISE 529 AM EDT SUNSET 810 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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