687  
CDUS42 KJAX 160531  
CLISSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
131 AM EDT SAT OCT 16 2021  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR OCTOBER 15 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1940 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 2:14 PM 86 2018 79 5 85  
MINIMUM 68 5:46 AM 44 1961 64 4 71  
AVERAGE 76 72 4 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.88 1964 0.18 -0.18 0.00  
MONTH TO DATE 1.97 3.00 -1.03 1.09  
SINCE SEP 1 6.16 9.00 -2.84 10.04  
SINCE JAN 1 39.08 39.05 0.03 43.89  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 11 7 4 13  
MONTH TO DATE 173 137 36 149  
SINCE SEP 1 581 561 20 578  
SINCE JAN 1 2751 2695 56 2933    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 57 12:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE ST SIMONS ISLAND CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 88 2019  
MINIMUM TEMPERATURE (F) 64 44 1961  
 
SUNRISE AND SUNSET  
OCTOBER 16 2021.......SUNRISE 7:29 AM EDT SUNSET 6:52 PM EDT  
OCTOBER 17 2021.......SUNRISE 7:30 AM EDT SUNSET 6:51 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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