364  
CDUS41 KOKX 210623  
CLIISP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE NEW YORK, NY  
223 AM EDT SUN MAY 21 2023  
   
...............................
 
 
   
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 20 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1963 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 65 554 PM 98 1996 69 -4 68  
MINIMUM 57 1207 AM 35 1992 52 5 50  
AVERAGE 61 61 0 59  
 
PRECIPITATION (IN)  
YESTERDAY 1.73R 1.47 1972 0.10 1.63 0.39  
MONTH TO DATE 1.89 2.03 -0.14 3.77  
SINCE MAR 1 9.74 10.60 -0.86 10.25  
SINCE JAN 1 16.33 17.55 -1.22 19.23  
 
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 1.6 7.1 -5.5 1.6  
SINCE JUL 1 5.0 31.8 -26.8 37.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 5 -1 6  
MONTH TO DATE 142 151 -9 125  
SINCE MAR 1 1211 1391 -180 1259  
SINCE JUL 1 4350 5110 -760 4669  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 12 7 5 7  
SINCE MAR 1 24 9 15 7  
SINCE JAN 1 24 9 15 7    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 9.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 700 AM  
LOWEST 87 1200 AM  
AVERAGE 94  
   
......................................................
 
 
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 2023...........SUNRISE 530 AM EDT SUNSET 808 PM EDT  
MAY 22 2023...........SUNRISE 529 AM EDT SUNSET 809 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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