600
CDUS42 KCHS 212107
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
507 PM EDT THU MAY 21 2026
...............................
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR MAY 21 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 84 1100 AM 99 1938 80 4 92
MINIMUM 74 510 AM 51 1894 69 5 78
AVERAGE 79 75 4 85
PRECIPITATION (IN)
TODAY 0.00 2.26 1966 0.08 -0.08 0.00
MONTH TO DATE 1.08 1.53 -0.45 5.33
SINCE MAR 1 1.79 7.52 -5.73 8.36
SINCE JAN 1 5.52 12.64 -7.12 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 14 10 4 20
MONTH TO DATE 140 162 -22 235
SINCE MAR 1 331 275 56 400
SINCE JAN 1 336 280 56 408
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.6
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THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 1938
MINIMUM TEMPERATURE (F) 70 54 1895
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.
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