561
CDUS42 KCHS 170621
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
221 AM EDT SUN AUG 17 2025
...............................
..THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR AUGUST 16 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 88 950 AM 97 1954 87 1 86
MINIMUM 75 1210 PM 68 1894 77 -2 75
1983
AVERAGE 82 82 0 81
PRECIPITATION (IN)
YESTERDAY 1.11 2.42 2023 0.19 0.92 0.00
MONTH TO DATE 5.18 3.02 2.16 10.17
SINCE JUN 1 11.58 12.95 -1.37 19.84
SINCE JAN 1 23.29 26.64 -3.35 40.19
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 17 16 1 16
MONTH TO DATE 252 271 -19 275
SINCE JUN 1 1355 1235 120 1338
SINCE JAN 1 1870 1622 248 1822
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WIND (MPH)
HIGHEST WIND SPEED 27 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 4.9
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THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 100 1954
MINIMUM TEMPERATURE (F) 77 70 1972
1976
1979
SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE 645 AM EDT SUNSET 802 PM EDT
AUGUST 18 2025........SUNRISE 645 AM EDT SUNSET 801 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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