Climatological Report (Monthly)
Issued by NWS
Issued by NWS
530 CXUS52 KCHS 022031 CLMCXM CLIMATE REPORT NATIONAL WEATHER SERVICE CHARLESTON SC 422 PM EDT WED OCT 02 2024 ................................... ...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1870 TO 2024 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 86 09/01 93 09/06 09/02 LOWEST 66 09/17 65 09/28 AVG. MAXIMUM 81.9 82.6 -0.7 82.7 AVG. MINIMUM 73.3 72.5 0.8 71.9 MEAN 77.6 77.6 0.0 77.3 DAYS MAX >= 90 0 1.7 -1.7 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 16.24 1945 MINIMUM 0.40 1901 TOTALS 4.47 5.25 -0.78 5.74 DAYS >= .01 8 8.6 -0.6 10 DAYS >= .10 4 5.8 -1.8 7 DAYS >= .50 3 2.8 0.2 4 DAYS >= 1.00 2 1.4 0.6 1 GREATEST 24 HR. TOTAL 1.94 09/26 DEGREE DAYS HEATING TOTAL 0 1 -1 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 386 377 9 380 SINCE 1/1 2442 2238 204 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 11.0 HIGHEST WIND SPEED/DIRECTION 44/140 HIGHEST GUST SPEED/DIRECTION 63/170 - 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: *SEP 25 - RECORD HIGH MINIMUM TEMPERATURE OF 79 DEGREES *SEP 30 - RECORD HIGH MINIMUM TEMPERATURE OF 78 DEGREES $$