Climatological Report (Daily)
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000
CDCA42 TJSJ 182126
CLIISX


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
526 PM AST MON DEC 18 2017


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

...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR DECEMBER 18 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1951 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         86    141 PM  88    1998  85      1       86
  MINIMUM         75    730 AM  64    1996  73      2       75
  AVERAGE         81                        79      2       81

PRECIPITATION (IN)
  TODAY            0.26          0.81 2001   0.08   0.18     0.04
  MONTH TO DATE    3.49                      1.86   1.63     2.64
  SINCE DEC 1      3.49                      1.86   1.63     2.64
  SINCE JAN 1     41.18                     37.56   3.62    33.57

SNOWFALL (IN)
  TODAY            0.0                       0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE DEC 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           16                        14      2       16
  MONTH TO DATE  272                       257     15      278
  SINCE DEC 1    272                       257     15      278
  SINCE JAN 1   4517                      5654  -1137     5832
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED    11.4


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94
 LOWEST     70
 AVERAGE    82

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


THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   85        88      1998
 MINIMUM TEMPERATURE (F)   73        65      2008


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   644 AM AST   SUNSET   548 PM AST
DECEMBER 19 2017......SUNRISE   644 AM AST   SUNSET   549 PM AST


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




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