588  
CDUS42 KJAX 100536  
CLISSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
136 AM EDT WED MAY 10 2023  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR MAY 9 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1940 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 4:35 PM 95 1962 82 7 69  
MINIMUM 73 6:30 AM 49 1960 66 7 57  
AVERAGE 81 74 7 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.95 1980 0.06 -0.06 0.00  
MONTH TO DATE 0.28 0.53 -0.25 0.09  
SINCE MAR 1 6.11 6.62 -0.51 10.71  
SINCE JAN 1 11.93 12.55 -0.62 13.77  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 2  
MONTH TO DATE 0 0 0 2  
SINCE MAR 1 86 194 -108 99  
SINCE JUL 1 812 1307 -495 984  
 
COOLING  
YESTERDAY 16 9 7 0  
MONTH TO DATE 79 74 5 94  
SINCE MAR 1 468 254 214 354  
SINCE JAN 1 603 272 331 393    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 10:00 AM  
LOWEST 47 6:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE ST SIMONS ISLAND CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 93 2017  
MINIMUM TEMPERATURE (F) 67 49 1967  
 
SUNRISE AND SUNSET  
MAY 10 2023...........SUNRISE 6:34 AM EDT SUNSET 8:11 PM EDT  
MAY 11 2023...........SUNRISE 6:33 AM EDT SUNSET 8:11 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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