619  
CDUS42 KJAX 212235  
CLISSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
535 PM EST SAT JAN 21 2023  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR JANUARY 21 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 59 10:42 AM 79 1974 62 -3 58  
MINIMUM 43 8:04 AM 6 1985 44 -1 38  
AVERAGE 51 53 -2 48  
 
PRECIPITATION (IN)  
TODAY 0.00 3.88 1983 0.12 -0.12 0.08  
MONTH TO DATE 1.58 2.02 -0.44 1.75  
SINCE DEC 1 2.61 4.77 -2.16 2.90  
SINCE JAN 1 1.58 2.02 -0.44 1.75  
 
SNOWFALL (IN)  
TODAY 0.0 T 1984  
 
DEGREE DAYS  
HEATING  
TODAY 14 12 2 17  
MONTH TO DATE 162 252 -90 219  
SINCE DEC 1 450 554 -104 326  
SINCE JUL 1 565 722 -157 518  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 8 0 8 14  
SINCE DEC 1 37 15 22 67  
SINCE JAN 1 8 0 8 14    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 8:00 AM  
LOWEST 42 10:00 AM  
AVERAGE 62  
   
......................................................
 
 
THE ST SIMONS ISLAND CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 77 1954  
MINIMUM TEMPERATURE (F) 44 18 1985  
 
SUNRISE AND SUNSET  
JANUARY 21 2023.......SUNRISE 7:23 AM EST SUNSET 5:51 PM EST  
JANUARY 22 2023.......SUNRISE 7:23 AM EST SUNSET 5:52 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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