174
CDUS42 KCHS 180610
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
210 AM EDT MON MAY 18 2026
...............................
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR MAY 17 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 82 230 PM 94 1899 79 3 87
MINIMUM 72 1210 AM 54 1984 68 4 77
AVERAGE 77 74 3 82
PRECIPITATION (IN)
YESTERDAY 0.00 1.73 2023 0.07 -0.07 0.00
MONTH TO DATE 1.08 1.23 -0.15 5.33
SINCE MAR 1 1.79 7.22 -5.43 8.36
SINCE JAN 1 5.52 12.34 -6.82 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 12 9 3 17
MONTH TO DATE 94 124 -30 169
SINCE MAR 1 285 237 48 334
SINCE JAN 1 290 242 48 342
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 7.6
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THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 98 1899
MINIMUM TEMPERATURE (F) 69 52 2009
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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