640
CDUS42 KCHS 172105
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
505 PM EDT WED SEP 17 2025
...............................
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR SEPTEMBER 17 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 84 150 PM 94 1896 83 1 79
MINIMUM 68 540 AM 60 1961 72 -4 66
1984
2011
AVERAGE 76 78 -2 73
PRECIPITATION (IN)
TODAY 0.00 4.71 1945 0.16 -0.16 0.00
MONTH TO DATE 0.94 3.10 -2.16 2.10
SINCE SEP 1 0.94 3.10 -2.16 2.10
SINCE JAN 1 34.83 32.83 2.00 43.00
DEGREE DAYS
HEATING
TODAY 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
TODAY 11 12 -1 8
MONTH TO DATE 183 235 -52 197
SINCE SEP 1 183 235 -52 197
SINCE JAN 1 2278 2096 182 2253
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.9
......................................................
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 1931
MINIMUM TEMPERATURE (F) 72 60 1910
1984
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 705 AM EDT SUNSET 723 PM EDT
SEPTEMBER 18 2025.....SUNRISE 705 AM EDT SUNSET 721 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page