916  
CDUS41 KOKX 160616  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
216 AM EDT SAT MAY 16 2026  
   
...............................  
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 15 2026  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 516 PM 82 1976 68 -1 72  
MINIMUM 50 544 AM 40 1968 50 0 61  
1999  
AVERAGE 59 59 0 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.35 2024 0.09 -0.09 0.10  
MONTH TO DATE 0.70 1.55 -0.85 2.26  
SINCE MAR 1 7.04 10.12 -3.08 9.00  
SINCE JAN 1 13.28 17.07 -3.79 13.32  
 
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 0.2 7.1 -6.9 0.0  
SINCE JUL 1 61.8 31.8 30.0 11.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 6 0 0  
MONTH TO DATE 133 123 10 38  
SINCE MAR 1 1283 1363 -80 1011  
SINCE JUL 1 5139 5082 57 4493  
 
COOLING  
YESTERDAY 0 1 -1 2  
MONTH TO DATE 0 2 -2 4  
SINCE MAR 1 11 4 7 4  
SINCE JAN 1 11 4 7 4    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 9.2  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1100 PM  
LOWEST 45 1200 PM  
AVERAGE 66  
   
......................................................  
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 86 1998  
MINIMUM TEMPERATURE (F) 51 39 2000  
 
SUNRISE AND SUNSET  
MAY 16 2026...........SUNRISE 534 AM EDT SUNSET 804 PM EDT  
MAY 17 2026...........SUNRISE 533 AM EDT SUNSET 805 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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