Climatological Report (Monthly)
Issued by NWS
Issued by NWS
486
CXUS52 KCHS 011415
CLMCXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1012 AM EDT MON SEP 01 2025
...................................
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 103 08/01/1999
LOW 59 08/29/1986
HIGHEST 91 08/01 91 08/01
LOWEST 70 08/30 70 08/22
AVG. MAXIMUM 84.7 86.4 -1.7 85.9
AVG. MINIMUM 75.6 76.5 -0.9 76.5
MEAN 80.1 81.4 -1.3 81.2
DAYS MAX >= 90 2 6.7 -4.7 3
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 16.71 1940
MINIMUM 0.18 1954
TOTALS 15.78 6.11 9.67 10.88
DAYS >= .01 14 11.7 2.3 11
DAYS >= .10 11 8.2 2.8 8
DAYS >= .50 8 3.7 4.3 6
DAYS >= 1.00 6 2.1 3.9 4
GREATEST
24 HR. TOTAL 4.10 08/22 TO 08/22
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 477 510 -33 509
SINCE 1/1 2095 1861 234 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.9
HIGHEST WIND SPEED/DIRECTION 27/040
HIGHEST GUST SPEED/DIRECTION 35/350
35/040
- 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:
*3RD WETTEST AUGUST ON RECORD
*AUG 22 - RECORD PRECIPITATION OF 4.10 INCHES
*AUG 23 - RECORD PRECIPITATION OF 3.95 INCHES
$$