Climatological Report (Monthly)
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
889
CXUS52 KCHS 011830
CLMCHS
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
227 PM EDT WED OCT 01 2025
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...THE NORTH CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1937 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 99 09/05/1944
09/04/1944
LOW 42 09/30/1967
09/28/2024
HIGHEST 92 09/25 MM MM 91 09/01
LOWEST 60 09/15 MM MM 61 09/10
AVG. MAXIMUM 85.1 85.4 -0.3 84.8
AVG. MINIMUM 66.7 68.3 -1.6 69.2
MEAN 75.9 76.9 -1.0 77.0
DAYS MAX >= 90 7 6.0 1.0 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 17.31 1945
MINIMUM 0.18 1990
TOTALS 0.98 6.01 -5.03 3.53
DAYS >= .01 3 10.2 -7.2 10
DAYS >= .10 1 6.8 -5.8 6
DAYS >= .50 1 3.5 -2.5 3
DAYS >= 1.00 0 1.9 -1.9 1
GREATEST
24 HR. TOTAL 0.86 09/07
SNOWFALL (INCHES)
TOTALS 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0
DEGREE DAYS
HEATING TOTAL 0 2 -2 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 337 357 -20 367
SINCE 1/1 2470 2250 220 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.0
HIGHEST WIND SPEED/DIRECTION 26/160
HIGHEST GUST SPEED/DIRECTION 33/160
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 3 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 11 FOG W/VIS <= 1/4 MILE 1
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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