698  
CDUS41 KOKX 210621  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
221 AM EDT SAT SEP 21 2024  
   
...............................  
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 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 77 116 PM 87 1983 74 3 74  
MINIMUM 66 1100 PM 38 1979 58 8 52  
AVERAGE 72 66 6 63  
 
PRECIPITATION (IN)  
YESTERDAY T 0.96 1988 0.12 -0.12 0.00  
MONTH TO DATE 0.06 2.36 -2.30 2.81  
SINCE SEP 1 0.06 2.36 -2.30 2.81  
SINCE JAN 1 38.93 32.66 6.27 33.34  
 
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 2 -2 2  
MONTH TO DATE 5 18 -13 5  
SINCE SEP 1 5 18 -13 5  
SINCE JUL 1 6 21 -15 5  
 
COOLING  
YESTERDAY 7 3 4 0  
MONTH TO DATE 68 90 -22 158  
SINCE SEP 1 68 90 -22 158  
SINCE JAN 1 989 854 135 936    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 12.9  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 300 AM  
LOWEST 56 100 PM  
AVERAGE 70  
   
......................................................  
 
THE ISLIP NY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 84 1980  
MINIMUM TEMPERATURE (F) 57 43 1973  
1991  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2024.....SUNRISE 639 AM EDT SUNSET 650 PM EDT  
SEPTEMBER 22 2024.....SUNRISE 640 AM EDT SUNSET 649 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab NY Page
The Nexlab NJ Page
The Nexlab CT Page
Main Text Page