013  
CDUS42 KJAX 202131  
CLISSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
531 PM EDT FRI OCT 20 2023  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR OCTOBER 20 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 85 3:12 PM 90 2018 78 7 72  
MINIMUM 62 3:45 AM 40 1989 62 0 45  
AVERAGE 74 70 4 59  
 
PRECIPITATION (IN)  
TODAY T 1.49 1970 0.13 -0.13 0.00  
MONTH TO DATE 2.12 3.75 -1.63 1.66  
SINCE SEP 1 11.49 9.75 1.74 9.91  
SINCE JAN 1 43.61 39.80 3.81 46.00  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 6  
MONTH TO DATE 3 3 0 21  
SINCE SEP 1 3 3 0 21  
SINCE JUL 1 3 3 0 21  
 
COOLING  
TODAY 9 6 3 0  
MONTH TO DATE 153 169 -16 117  
SINCE SEP 1 616 593 23 541  
SINCE JAN 1 3360 2727 633 2958    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 3:00 AM  
LOWEST 46 3:00 PM  
AVERAGE 68  
   
......................................................
 
 
THE ST SIMONS ISLAND CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 87 1962  
MINIMUM TEMPERATURE (F) 62 39 1964  
 
SUNRISE AND SUNSET  
OCTOBER 20 2023.......SUNRISE 7:32 AM EDT SUNSET 6:49 PM EDT  
OCTOBER 21 2023.......SUNRISE 7:32 AM EDT SUNSET 6:48 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 FL Page
The Nexlab GA Page Main Text Page