049
CXUS52 KCHS 010616
CLMCXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
212 AM EDT THU OCT 01 2026
...............................
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1870 TO 2026
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 91 09/14 MM MM 87 09/07
09/18
09/26
LOWEST 62 09/25 MM MM 67 09/14
09/26
09/15
09/16
AVG. MAXIMUM 84.6 82.6 2.0 81.8
AVG. MINIMUM 74.5 72.5 2.0 71.2
MEAN 79.6 77.6 2.0 76.5
DAYS MAX >= 90 4 1.7 2.3 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 0.22R 5.25 -5.03 1.04
DAYS >= .01 5 8.6 -3.6 3
DAYS >= .10 1 5.8 -4.8 1
DAYS >= .50 0 2.8 -2.8 1
DAYS >= 1.00 0 1.4 -1.4 0
GREATEST
24 HR. TOTAL 0.12 09/12 TO 09/12
DEGREE DAYS
HEATING TOTAL 0 1 -1 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 442 377 65 354
SINCE 1/1 2606 2238 368 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.7
HIGHEST WIND SPEED/DIRECTION 25/050
25/050
HIGHEST GUST SPEED/DIRECTION 32/060
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
RECORDS ESTABLISHED IN DOWNTOWN CHARLESTON DURING THE MONTH:
*DRIEST SEPTEMBER ON RECORD
*SEP 4 - RECORD HIGH MINIMUM TEMPERATURE OF 82 DEGREES
*SEP 5 - RECORD HIGH MINIMUM TEMPERATURE OF 80 DEGREES
*SEP 10 - RECORD HIGH MINIMUM TEMPERATURE OF 81 DEGREES
*SEP 14 - RECORD HIGH MINIMUM TEMPERATURE OF 81 DEGREES
*SEP 15 - RECORD HIGH MINIMUM TEMPERATURE OF 80 DEGREES
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