187  
CDUS42 KJAX 292132  
CLISSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
532 PM EDT FRI SEP 29 2023  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR SEPTEMBER 29 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 83 2:52 PM 92 1974 83 0 70  
MINIMUM 69 6:54 AM 53 1962 70 -1 60  
AVERAGE 76 76 0 65  
 
PRECIPITATION (IN)  
TODAY 0.00 3.46 1965 0.18 -0.18 0.78  
MONTH TO DATE 9.37 5.81 3.56 8.25  
SINCE SEP 1 9.37 5.81 3.56 8.25  
SINCE JAN 1 41.49 35.86 5.63 44.34  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 11 12 -1 0  
MONTH TO DATE 452 414 38 422  
SINCE SEP 1 452 414 38 422  
SINCE JAN 1 3196 2548 648 2839    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 7:00 AM  
LOWEST 67 1:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE ST SIMONS ISLAND CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 92 1944  
MINIMUM TEMPERATURE (F) 69 49 1967  
 
SUNRISE AND SUNSET  
SEPTEMBER 29 2023.....SUNRISE 7:18 AM EDT SUNSET 7:13 PM EDT  
SEPTEMBER 30 2023.....SUNRISE 7:18 AM EDT SUNSET 7:12 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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