559
CDUS42 KCHS 182109
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
509 PM EDT MON MAY 18 2026
...............................
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR MAY 18 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 80 840 AM 98 1899 79 1 88
MINIMUM 72 550 AM 52 2009 69 3 73
AVERAGE 76 74 2 81
PRECIPITATION (IN)
TODAY 0.00 1.79 1955 0.07 -0.07 0.00
MONTH TO DATE 1.08 1.30 -0.22 5.33
SINCE MAR 1 1.79 7.29 -5.50 8.36
SINCE JAN 1 5.52 12.41 -6.89 11.03
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 11 9 2 16
MONTH TO DATE 105 133 -28 185
SINCE MAR 1 296 246 50 350
SINCE JAN 1 301 251 50 358
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 5.9
......................................................
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 93 1962
1977
2001
MINIMUM TEMPERATURE (F) 69 53 2002
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 619 AM EDT SUNSET 814 PM EDT
MAY 19 2026...........SUNRISE 618 AM EDT SUNSET 815 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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