Climatological Report (Daily)
Issued by NWS
Issued by NWS
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210
CDUS42 KCHS 180604
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
204 AM EDT TUE AUG 18 2026
...................................
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR AUGUST 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 97 310 PM 100 1954 86 11 84
MINIMUM 79 540 AM 70 1972 77 2 78
1976
1979
AVERAGE 88 82 6 81
PRECIPITATION (IN)
YESTERDAY 0.00 5.57 1945 0.21 -0.21 0.02
MONTH TO DATE 1.96 3.23 -1.27 5.20
SINCE JUN 1 8.69 13.16 -4.47 11.60
SINCE JAN 1 15.35 26.85 -11.50 23.31
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 23 16 7 16
MONTH TO DATE 326 287 39 268
SINCE JUN 1 1419 1251 168 1371
SINCE JAN 1 1903 1638 265 1886
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.9
..........................................................
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 97 1944
1995
MINIMUM TEMPERATURE (F) 77 67 1979
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 645 AM EDT SUNSET 801 PM EDT
AUGUST 19 2026........SUNRISE 646 AM EDT SUNSET 800 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$