787  
CDUS41 KOKX 030628  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
228 AM EDT WED SEP 03 2025  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 2 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 1202 PM 92 1973 79 -1 80  
MINIMUM 58 512 AM 47 1992 63 -5 62  
AVERAGE 68 71 -3 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.44 1974 0.12 -0.12 0.00  
MONTH TO DATE 0.00 0.24 -0.24 0.03  
SINCE SEP 1 0.00 0.24 -0.24 0.03  
SINCE JAN 1 23.78 30.54 -6.76 38.90  
 
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 SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 3 -3 1  
 
COOLING  
YESTERDAY 3 6 -3 6  
MONTH TO DATE 5 12 -7 17  
SINCE SEP 1 5 12 -7 17  
SINCE JAN 1 933 776 157 938    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 AM  
LOWEST 43 1100 AM  
AVERAGE 68  
   
......................................................
 
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 94 1973  
MINIMUM TEMPERATURE (F) 63 50 1967  
1975  
1991  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2025.....SUNRISE 622 AM EDT SUNSET 721 PM EDT  
SEPTEMBER 4 2025.....SUNRISE 623 AM EDT SUNSET 719 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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