Climatological Report (Daily)
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000
CDCA42 TJSJ 160443
CLIISX


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1243 AM AST SAT DEC 16 2017


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

...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR DECEMBER 15 2017...

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)
 YESTERDAY
  MAXIMUM         87    204 PM  88    1998  85      2       85
  MINIMUM         73    653 AM  63    1982  73      0       70
  AVERAGE         80                        79      1       78

PRECIPITATION (IN)
  YESTERDAY        T             3.35 2001   0.09  -0.09      T
  MONTH TO DATE    3.11                      1.59   1.52     2.52
  SINCE DEC 1      3.11                      1.59   1.52     2.52
  SINCE JAN 1     40.80                     37.29   3.51    33.45

SNOWFALL (IN)
  YESTERDAY        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
  YESTERDAY        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
  YESTERDAY       15                        14      1       13
  MONTH TO DATE  225                       215     10      230
  SINCE DEC 1    225                       215     10      230
  SINCE JAN 1   4470                      5612  -1142     5784
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED    10.6


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94
 LOWEST     57
 AVERAGE    76

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


THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   85        88      1998
 MINIMUM TEMPERATURE (F)   73        67      2012


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   643 AM AST   SUNSET   547 PM AST
DECEMBER 17 2017......SUNRISE   643 AM AST   SUNSET   548 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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