Climatological Report (Daily)
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CDCA42 TJSJ 130459
CLIISX


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1259 AM AST WED DEC 13 2017


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

...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR DECEMBER 12 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         85    150 PM  89    2013  85      0       86
  MINIMUM         71    648 AM  65    1973  74     -3       73
  AVERAGE         78                        79     -1       80

PRECIPITATION (IN)
  YESTERDAY        0.25          0.96 1962   0.09   0.16     0.17
  MONTH TO DATE    3.11                      1.31   1.80     2.26
  SINCE DEC 1      3.11                      1.31   1.80     2.26
  SINCE JAN 1     40.80                     37.01   3.79    33.19

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       15
  MONTH TO DATE  181                       173      8      186
  SINCE DEC 1    181                       173      8      186
  SINCE JAN 1   4426                      5570  -1144     5740
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     6.3


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100
 LOWEST     70
 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        63      1983


SUNRISE AND SUNSET
DECEMBER 13 2017......SUNRISE   641 AM AST   SUNSET   546 PM AST
DECEMBER 14 2017......SUNRISE   642 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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