893
CDUS42 KCHS 210618
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
218 AM EDT THU MAY 21 2026
...............................
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR MAY 20 2026
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)
YESTERDAY
MAXIMUM 79 210 PM 95 1938 80 -1 88
MINIMUM 73 110 AM 45 1894 69 4 77
AVERAGE 76 74 2 83
PRECIPITATION (IN)
YESTERDAY 0.00 4.39 1932 0.07 -0.07 0.00
MONTH TO DATE 1.08 1.45 -0.37 5.33
SINCE MAR 1 1.79 7.44 -5.65 8.36
SINCE JAN 1 5.52 12.56 -7.04 11.03
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 11 10 1 18
MONTH TO DATE 126 152 -26 215
SINCE MAR 1 317 265 52 380
SINCE JAN 1 322 270 52 388
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 7.8
......................................................
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 99 1938
MINIMUM TEMPERATURE (F) 69 51 1894
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 617 AM EDT SUNSET 816 PM EDT
MAY 22 2026...........SUNRISE 617 AM EDT SUNSET 817 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