442  
CXUS52 KCHS 020146  
CLACXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
830 PM EST MON JAN 01 2024  
   
...............................
 
 
   
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE YEAR OF 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1870 TO 2023  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 104 06/02/1985  
06/24/1944  
LOW 7 02/14/1899  
HIGHEST 94 07/21 94  
08/08  
LOWEST 34 01/15 19  
AVG. MAXIMUM 74.5 73.3 1.2 73.7  
AVG. MINIMUM 62.7 61.1 1.6 62.2  
MEAN 68.6 67.2 1.4 68.0  
DAYS MAX >= 90 31 24.5 6.5 17  
DAYS MAX <= 32 0 0.0 0.0 1  
DAYS MIN <= 32 0 6.1 -6.1 7  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 74.87 1945  
MINIMUM 27.63 2000  
TOTALS 49.32 44.26 5.06 39.20  
DAYS >= .01 119 101.9 17.1 109  
DAYS >= .10 78 65.1 12.9 62  
DAYS >= .50 28 27.2 0.8 18  
DAYS >= 1.00 15 12.4 2.6 13  
GREATEST  
24 HR. TOTAL 3.92 12/17  
 
DEGREE DAYS  
HEATING TOTAL 1087 1623 -536 1415  
SINCE 7/1 472 567 -95 MM  
COOLING TOTAL 2512 2448 64 2596  
SINCE 1/1 2512 2448 64 MM    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 6.6  
HIGHEST WIND SPEED/DIRECTION 39/160 DATE 08/30  
HIGHEST GUST SPEED/DIRECTION 48/170 DATE 08/30  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
RECORDS ESTABLISHED IN DOWNTOWN CHARLESTON DURING THE YEAR:  
 
*2ND WARMEST FEBRUARY ON RECORD  
*5TH WETTEST DECEMBER ON RECORD  
 

 
 
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