Climatological Report (Daily)
Issued by NWS
Issued by NWS
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635
CDUS42 KCHS 210603
CLICXM
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
203 AM EDT MON SEP 21 2026
...................................
...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR SEPTEMBER 20 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1870 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 85 1240 PM 97 1942 82 3 84
MINIMUM 75 620 AM 54 1929 72 3 73
AVERAGE 80 77 3 79
PRECIPITATION (IN)
YESTERDAY 0.00 2.15 1952 0.16 -0.16 0.00
MONTH TO DATE 0.18 3.60 -3.42 0.94
SINCE SEP 1 0.18 3.60 -3.42 0.94
SINCE JAN 1 18.33 33.33 -15.00 34.83
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 15 12 3 14
MONTH TO DATE 345 271 74 227
SINCE SEP 1 345 271 74 227
SINCE JAN 1 2509 2132 377 2322
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 9.2
..........................................................
THE DOWNTOWN CHARLESTON SC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 93 1925
MINIMUM TEMPERATURE (F) 72 54 1918
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 707 AM EDT SUNSET 718 PM EDT
SEPTEMBER 22 2026.....SUNRISE 708 AM EDT SUNSET 716 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$