431  
CDUS42 KCHS 220602  
CLICXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
202 AM EDT FRI SEP 22 2023  
   
...............................
 
 
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR SEPTEMBER 21 2023...  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1870 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 330 PM 93 1925 82 -4 86  
MINIMUM 71 1220 AM 54 1918 72 -1 76  
AVERAGE 75 77 -2 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.68 8.50 1998 0.16 0.52 0.00  
MONTH TO DATE 5.63 3.76 1.87 3.70  
SINCE SEP 1 5.63 3.76 1.87 3.70  
SINCE JAN 1 39.44 33.49 5.95 30.79  
 
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 10 12 -2 16  
MONTH TO DATE 300 283 17 322  
SINCE SEP 1 300 283 17 322  
SINCE JAN 1 2256 2144 112 2339    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 13.3  
   
......................................................
 
 
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 92 1925  
MINIMUM TEMPERATURE (F) 71 53 1913  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2023.....SUNRISE 708 AM EDT SUNSET 717 PM EDT  
SEPTEMBER 23 2023.....SUNRISE 708 AM EDT SUNSET 715 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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