746
CXUS52 KCHS 011836
CLMCXM

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
227 PM EDT WED OCT 01 2025

...................................

...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1870 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            100   09/05/1944
                       09/04/1944
                       09/02/1912
 LOW              50   09/30/1967
                       09/29/1942
HIGHEST           87   09/07         MM      MM       86  09/01
                       09/26
                                                          09/02
LOWEST            67   09/14         MM      MM       66  09/17
                       09/15
                       09/16
AVG. MAXIMUM    81.8               82.6    -0.8     81.9
AVG. MINIMUM    71.2               72.5    -1.3     73.3
MEAN            76.5               77.6    -1.1     77.6
DAYS MAX >= 90     0                1.7    -1.7        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       16.24   1945
 MINIMUM        0.40   1901
TOTALS          1.04               5.25   -4.21     4.47
DAYS >= .01        3                8.6    -5.6        8
DAYS >= .10        1                5.8    -4.8        4
DAYS >= .50        1                2.8    -1.8        3
DAYS >= 1.00       0                1.4    -1.4        2
GREATEST
 24 HR. TOTAL   0.94   09/07

DEGREE DAYS
HEATING TOTAL      0                  1      -1        0
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    354                377     -23      386
 SINCE 1/1      2449               2238     211       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    23/350
                                23/020
HIGHEST GUST SPEED/DIRECTION    33/350



-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$