812  
CDUS42 KCHS 202109  
CLICXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
509 PM EDT MON OCT 20 2025  
   
...............................
 
 
   
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR OCTOBER 20 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 72 1200 AM 87 1926 75 -3 74  
MINIMUM 60 630 AM 40 1972 62 -2 56  
AVERAGE 66 68 -2 65  
 
PRECIPITATION (IN)  
TODAY 0.00 3.82 1904 0.12 -0.12 0.00  
MONTH TO DATE 3.84 3.03 0.81 0.15  
SINCE SEP 1 4.88 8.28 -3.40 4.62  
SINCE JAN 1 38.77 38.01 0.76 45.52  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 1 8 -7 20  
SINCE SEP 1 1 9 -8 20  
SINCE JUL 1 1 9 -8 20  
 
COOLING  
TODAY 1 4 -3 0  
MONTH TO DATE 103 133 -30 118  
SINCE SEP 1 457 510 -53 504  
SINCE JAN 1 2552 2371 181 2560    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 11.1  
   
......................................................
 
 
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 84 1943  
1962  
MINIMUM TEMPERATURE (F) 61 39 1913  
 
SUNRISE AND SUNSET  
OCTOBER 20 2025.......SUNRISE 728 AM EDT SUNSET 641 PM EDT  
OCTOBER 21 2025.......SUNRISE 729 AM EDT SUNSET 639 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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