Climatological Report (Monthly)
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000
CXUS52 KCHS 011712
CLMCXM

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1152 AM EST MON JAN 1 2018

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

...THE DOWNTOWN CHARLESTON SC CLIMATE SUMMARY FOR THE MONTH OF
DECEMBER 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              81   12/07/1998
                        12/19/1967
                        12/09/1943
 LOW               12   12/30/1917
HIGHEST            76   12/19                         76  12/24
LOWEST             31   12/29                         35  12/16
AVG. MAXIMUM     59.1              59.5    -0.4     63.1
AVG. MINIMUM     46.7              45.6     1.1     48.1
MEAN             52.9              52.6     0.3     55.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      1               2.0    -1.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.56   1941
 MINIMUM         0.19   1919
TOTALS           1.91              2.60   -0.69     2.95
DAYS >= .01         8               8.6    -0.6       10
DAYS >= .10         4               5.0    -1.0        4
DAYS >= .50         1               1.7    -0.7        2
DAYS >= 1.00        0               0.5    -0.5        1
GREATEST
 24 HR. TOTAL    0.79   12/07 TO 12/07

DEGREE_DAYS
HEATING TOTAL     371               393     -22      288
 SINCE 7/1        574               606     -32      429
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.7
HIGHEST WIND SPEED/DIRECTION    22/010
HIGHEST GUST SPEED/DIRECTION    27/030



-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

NO RECORDS WERE ESTABLISHED IN DOWNTOWN CHARLESTON DURING THE MONTH.

$$



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