Climatological Report (Annual)
Issued by NWS Charleston, SC

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077
CXUS52 KCHS 011731
CLACHS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1219 PM EST MON JAN 1 2018

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

...THE NORTH CHARLESTON SC CLIMATE SUMMARY FOR THE YEAR OF 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1938 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   08/01/1999
 LOW                6   01/21/1985
HIGHEST            98   08/16                        100  07/13
                                                          07/08
LOWEST             22   01/08                         23  01/20
AVG. MAXIMUM     78.3              76.2     2.1     78.6
AVG. MINIMUM     58.1              55.6     2.5     58.2
MEAN             68.2              65.9     2.3     68.4
DAYS MAX >= 90     62              55.2     6.8       98
DAYS MAX <= 32      0               0.4    -0.4        0
DAYS MIN <= 32     13              24.4   -11.4       20
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        74.89   2015
 MINIMUM        30.31   1954
TOTALS          52.87             51.03    1.84    59.63
DAILY AVG.       0.14              0.14    0.00     0.16
DAYS >= .01       101             112.7   -11.7      101
DAYS >= .10        72              74.4    -2.4       64
DAYS >= .50        36              33.4     2.6       28
DAYS >= 1.00       18              14.8     3.2       19
GREATEST
 24 HR. TOTAL    5.51   09/10 TO 09/11

SNOWFALL (INCHES)
TOTALS              T               0.5    -0.5        T
SINCE 7/1           T               0.3    -0.3      0.0
SNOWDEPTH AVG.      0                                  0
DAYS >= TRACE       4               0.5     3.5        2
DAYS >= 1.0         0               0.1    -0.1        0

DEGREE_DAYS
HEATING TOTAL    1398              1977    -579     1608
 SINCE 7/1        703               738     -35      530
COOLING TOTAL    2682              2304     378     2965
 SINCE 1/1       2682              2304     378     2965

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

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    43/070    DATE  09/11
HIGHEST GUST SPEED/DIRECTION    60/080    DATE  09/11


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               53     RAIN                      58
LIGHT RAIN              127     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       3
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                     193     FOG W/VIS <= 1/4 MILE     10
HAZE                     18

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

&&

2017 BECOMES 3RD WARMEST YEAR ON RECORD AT THE CHARLESTON
INTERNATIONAL AIRPORT.

$$



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