779  
CDUS42 KCHS 120602  
CLICXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
202 AM EDT TUE AUG 12 2025  
   
...............................  
 
   
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR AUGUST 11 2025  
 
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)  
YESTERDAY  
MAXIMUM 82 230 PM 97 1954 87 -5 89  
MINIMUM 75 1050 AM 67 1989 77 -2 80  
AVERAGE 79 82 -3 85  
 
PRECIPITATION (IN)  
YESTERDAY 1.19 7.66 1940 0.19 1.00 0.00  
MONTH TO DATE 4.07 2.06 2.01 8.71  
SINCE JUN 1 10.47 11.99 -1.52 18.38  
SINCE JAN 1 22.18 25.68 -3.50 38.73  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 14 17 -3 20  
MONTH TO DATE 156 187 -31 191  
SINCE JUN 1 1259 1151 108 1254  
SINCE JAN 1 1774 1538 236 1738    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 10.8  
   
......................................................  
 
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 98 1998  
MINIMUM TEMPERATURE (F) 77 66 1967  
 
SUNRISE AND SUNSET  
AUGUST 12 2025........SUNRISE 641 AM EDT SUNSET 808 PM EDT  
AUGUST 13 2025........SUNRISE 642 AM EDT SUNSET 807 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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