400  
CDUS42 KCHS 182110  
CLICXM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHARLESTON SC  
510 PM EDT FRI JUL 18 2025  
   
...............................  
 
   
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR JULY 18 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 89 1050 AM 98 1942 88 1 87  
MINIMUM 78 150 PM 68 1946 77 1 80  
AVERAGE 84 82 2 84  
 
PRECIPITATION (IN)  
TODAY 0.07 2.78 1894 0.16 -0.09 0.00  
MONTH TO DATE 2.17 2.86 -0.69 3.58  
SINCE JUN 1 4.02 7.71 -3.69 5.74  
SINCE JAN 1 15.73 21.40 -5.67 26.09  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 19 18 1 19  
MONTH TO DATE 320 309 11 350  
SINCE JUN 1 823 737 86 833  
SINCE JAN 1 1338 1124 214 1317    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 6.5  
   
......................................................  
 
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 101 1942  
MINIMUM TEMPERATURE (F) 77 67 1923  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 625 AM EDT SUNSET 827 PM EDT  
JULY 19 2025..........SUNRISE 625 AM EDT SUNSET 827 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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