831
CDUS42 KCHS 170600
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
200 AM EDT SUN MAY 17 2026
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..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR MAY 16 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
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 1030 AM 96 1915 79 -3 91
MINIMUM 67 440 AM 53 1926 68 -1 75
AVERAGE 72 74 -2 83
PRECIPITATION (IN)
YESTERDAY 0.00 2.28 1922 0.07 -0.07 0.00
MONTH TO DATE 1.08 1.16 -0.08 5.33
SINCE MAR 1 1.79 7.15 -5.36 8.36
SINCE JAN 1 5.52 12.27 -6.75 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 7 9 -2 18
MONTH TO DATE 82 115 -33 152
SINCE MAR 1 273 228 45 317
SINCE JAN 1 278 233 45 325
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 7.2
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THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 94 1899
MINIMUM TEMPERATURE (F) 68 54 1984
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 619 AM EDT SUNSET 813 PM EDT
MAY 18 2026...........SUNRISE 619 AM EDT SUNSET 814 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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