Climatological Report (Monthly)
Issued by NWS

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CXUS52 KCHS 031351
CLMCXM

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
941 AM EDT TUE OCT 3 2017

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

...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1870 TO 2017

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            93   09/28                         90  09/11
LOWEST             66   09/11                         68  09/03
AVG. MAXIMUM     84.1              82.0     2.1     84.8
AVG. MINIMUM     73.0              71.8     1.2     73.7
MEAN             78.6              76.9     1.7     79.2
DAYS MAX >= 90      2               2.2    -0.2        1
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           6.60              5.76    0.84     7.79
DAYS >= .01         6               8.9    -2.9        9
DAYS >= .10         3               6.2    -3.2        7
DAYS >= .50         3               2.9     0.1        4
DAYS >= 1.00        2               1.5     0.5        2
GREATEST
 24 HR. TOTAL    4.53   09/11

DEGREE_DAYS
HEATING TOTAL       0                 1      -1        0
 SINCE 7/1          0                 1      -1        0
COOLING TOTAL     414               358      56      435
 SINCE 1/1       2434              2183     251     2572
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    40/080
HIGHEST GUST SPEED/DIRECTION    52/090



-  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 11 - RECORD PRECIPITATION OF 4.53 INCHES
*SEP 28 - RECORD HIGH TEMPERATURE OF 93 DEGREES

$$


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