053  
CDUS42 KCHS 122114  
CLICXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
514 PM EDT TUE MAY 12 2026  
   
...............................  
 
   
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR MAY 12 2026  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1870 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 69 120 PM 96 1896 78 -9 76  
MINIMUM 61 640 AM 53 1947 67 -6 71  
1952  
2021  
AVERAGE 65 73 -8 74  
 
PRECIPITATION (IN)  
TODAY 0.00 4.70 1915 0.07 -0.07 0.17  
MONTH TO DATE 1.08 0.88 0.20 5.25  
SINCE MAR 1 1.79 6.87 -5.08 8.28  
SINCE JAN 1 5.52 11.99 -6.47 10.95  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 9 0 9 0  
SINCE MAR 1 171 275 -104 172  
SINCE JUL 1 1569 1619 -50 1512  
 
COOLING  
TODAY 0 8 -8 9  
MONTH TO DATE 59 82 -23 96  
SINCE MAR 1 250 195 55 261  
SINCE JAN 1 255 200 55 269    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 16.8  
   
......................................................  
 
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 1899  
1922  
1953  
MINIMUM TEMPERATURE (F) 67 50 1917  
 
SUNRISE AND SUNSET  
MAY 12 2026...........SUNRISE 623 AM EDT SUNSET 810 PM EDT  
MAY 13 2026...........SUNRISE 622 AM EDT SUNSET 810 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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