Climatological Report (Daily)
Issued by NWS Jacksonville, FL

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CDUS42 KJAX 170627
CLISSI


CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
127 AM EST SUN DEC 17 2017


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

...THE ST SIMONS ISLAND CLIMATE SUMMARY FOR DECEMBER 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         56   1257 PM  84    1971  63     -7       64
  MINIMUM         42    752 AM  25    1968  45     -3       44
  AVERAGE         49                        54     -5       54

PRECIPITATION (IN)
  YESTERDAY        0.00          1.33 1973   0.09  -0.09     0.00
  MONTH TO DATE    2.33                      1.31   1.02     2.25
  SINCE DEC 1      2.33                      1.31   1.02     2.25
  SINCE JAN 1     48.55                     43.67   4.88    45.50

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE DEC 1      0.0                                       0.0
  SINCE JUL 1      0.0                                       0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       16                        11      5       11
  MONTH TO DATE  163                       158      5       93
  SINCE DEC 1    163                       158      5       93
  SINCE JUL 1    293                       338    -45      198

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    4                         9     -5       17
  SINCE DEC 1      4                         9     -5       17
  SINCE JAN 1   3124                      2624    500     3018
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     4.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           900 PM
 LOWEST     41          1100 AM
 AVERAGE    65

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


THE ST SIMONS ISLAND CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   62        80      1971
 MINIMUM TEMPERATURE (F)   45        28      1968


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   718 AM EST   SUNSET   526 PM EST
DECEMBER 18 2017......SUNRISE   718 AM EST   SUNSET   526 PM EST


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




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