152
CXUS52 KCHS 011452
CLMCXM

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1036 AM EDT MON JUN 01 2026

...................................

...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF MAY 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   05/27/2019
 LOW              45   05/20/1894
HIGHEST           89   05/28         MM      MM       92  05/21
LOWEST            53   05/03         MM      MM       66  05/09
                                                          05/11
                                                          05/31
AVG. MAXIMUM    78.4               79.0    -0.6     80.8
AVG. MINIMUM    69.1               68.0     1.1     70.6
MEAN            73.7               73.5     0.2     75.7
DAYS MAX >= 90     0                1.5    -1.5        2
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       11.93   1976
 MINIMUM        0.02   2000
TOTALS          2.22               2.58   -0.36     6.01
DAYS >= .01        7                6.8     0.2       14
DAYS >= .10        5                4.3     0.7        7
DAYS >= .50        2                1.6     0.4        2
DAYS >= 1.00       0                0.8    -0.8        1
GREATEST
 24 HR. TOTAL   0.89   05/02 TO 05/02


DEGREE DAYS
HEATING TOTAL      9                  6       3        0
 SINCE 7/1      1569               1619     -50       MM
COOLING TOTAL    288                269      19      342
 SINCE 1/1       484                387      97       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    26/070
HIGHEST GUST SPEED/DIRECTION    31/070



-  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:

*MAY 22 - RECORD HIGH MINIMUM TEMPERATURE OF 76 DEGREES
*MAY 23 - RECORD HIGH MINIMUM TEMPERATURE OF 77 DEGREES
*MAY 27 - RECORD HIGH MINIMUM TEMPERATURE OF 79 DEGREES

$$