Climatological Report (Daily)
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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.




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