Climatological Report (Daily)
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000
CDCA42 TJSJ 120445
CLIISX


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1245 AM AST TUE DEC 12 2017


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

...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR DECEMBER 11 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         84    255 PM  88    2009  85     -1       87
  MINIMUM         72   1035 PM  66    1982  74     -2       75
  AVERAGE         78                        79     -1       81

PRECIPITATION (IN)
  YESTERDAY        0.15          0.94 2011   0.10   0.05     0.18
  MONTH TO DATE    2.86                      1.22   1.64     2.09
  SINCE DEC 1      2.86                      1.22   1.64     2.09
  SINCE JAN 1     40.55                     36.92   3.63    33.02

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       13                        14     -1       16
  MONTH TO DATE  168                       159      9      171
  SINCE DEC 1    168                       159      9      171
  SINCE JAN 1   4413                      5556  -1143     5725
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     7.8


SKY COVER
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100
 LOWEST     69
 AVERAGE    85

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


THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   85        89      2013
 MINIMUM TEMPERATURE (F)   74        65      1973


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   640 AM AST   SUNSET   546 PM AST
DECEMBER 13 2017......SUNRISE   641 AM AST   SUNSET   546 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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