948  
CDUS42 KCHS 182113  
CLICXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
513 PM EDT MON AUG 18 2025  
   
...............................  
 
   
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR AUGUST 18 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1870 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 88 1050 AM 97 1944 86 2 87  
1995  
MINIMUM 76 610 AM 67 1979 77 -1 79  
AVERAGE 82 81 1 83  
 
PRECIPITATION (IN)  
TODAY 0.00 6.08 1935 0.19 -0.19 0.00  
MONTH TO DATE 5.20 3.42 1.78 10.17  
SINCE JUN 1 11.60 13.35 -1.75 19.84  
SINCE JAN 1 23.31 27.04 -3.73 40.19  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 17 16 1 18  
MONTH TO DATE 285 303 -18 311  
SINCE JUN 1 1388 1267 121 1374  
SINCE JAN 1 1903 1654 249 1858    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 5.1  
   
......................................................  
 
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 98 1895  
MINIMUM TEMPERATURE (F) 76 67 1976  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 645 AM EDT SUNSET 801 PM EDT  
AUGUST 19 2025........SUNRISE 646 AM EDT SUNSET 800 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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