343
CDUS42 KCHS 180705
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
205 AM EST THU DEC 18 2025
...............................
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1870 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 63 220 PM 78 1924 61 2 64
MINIMUM 45 540 AM 20 1943 47 -2 57
AVERAGE 54 54 0 61
PRECIPITATION (IN)
YESTERDAY 0.00 3.92 2023 0.09 -0.09 0.01
MONTH TO DATE 1.77 1.65 0.12 0.34
SINCE DEC 1 1.77 1.65 0.12 0.34
SINCE JAN 1 41.65 43.00 -1.35 47.39
DEGREE DAYS
HEATING
YESTERDAY 11 12 -1 4
MONTH TO DATE 259 175 84 207
SINCE DEC 1 259 175 84 207
SINCE JUL 1 438 390 48 313
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 1
SINCE DEC 1 0 0 0 1
SINCE JAN 1 2598 2441 157 2706
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WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 1.4
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THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 78 1933
2008
MINIMUM TEMPERATURE (F) 46 24 1901
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 717 AM EST SUNSET 516 PM EST
DECEMBER 19 2025......SUNRISE 717 AM EST SUNSET 517 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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