893  
CDUS42 KJAX 252135  
CLISSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
535 PM EDT MON SEP 25 2023  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR SEPTEMBER 25 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 90 12:00 PM 94 1961 84 6 85  
MINIMUM 71 MM 57 1990 71 0 68  
AVERAGE 81 78 3 77  
 
PRECIPITATION (IN)  
TODAY 0.00 2.75 1953 0.21 -0.21 0.00  
MONTH TO DATE 2.70 5.04 -2.34 7.47  
SINCE SEP 1 2.70 5.04 -2.34 7.47  
SINCE JAN 1 34.82 35.09 -0.27 43.56  
 
SNOWFALL (IN)  
TODAY 0.0 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 16 12 4 12  
MONTH TO DATE 409 366 43 388  
SINCE SEP 1 409 366 43 388  
SINCE JAN 1 3153 2500 653 2805    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 4:00 AM  
LOWEST 42 12:00 PM  
AVERAGE 62  
   
......................................................
 
 
THE ST SIMONS ISLAND CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 93 2019  
MINIMUM TEMPERATURE (F) 71 58 1956  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2023.....SUNRISE 7:15 AM EDT SUNSET 7:19 PM EDT  
SEPTEMBER 26 2023.....SUNRISE 7:16 AM EDT SUNSET 7:17 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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