Climatological Report (Daily)
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000
CDCA42 TJSJ 180431
CLIIST


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1231 AM AST MON DEC 18 2017


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

...THE CYRIL E. KING AP/ST THOMAS  CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1953 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         86   1217 PM  91    1994  86      0       86
  MINIMUM         78    433 PM  65    1972  73      5       75
  AVERAGE         82                        80      2       81

PRECIPITATION (IN)
  YESTERDAY        0.02          1.13 2002   0.09  -0.07     0.20
  MONTH TO DATE    0.13                      1.71  -1.58     1.15
  SINCE DEC 1      0.13                      1.71  -1.58     1.15
  SINCE JAN 1     41.31                     38.09   3.22    40.39

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       17                        14      3       16
  MONTH TO DATE   82                       254   -172      249
  SINCE DEC 1     82                       254   -172      249
  SINCE JAN 1   4614                      5848  -1234     6201
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED    14.7


SKY COVER
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85
 LOWEST     65
 AVERAGE    75

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


THE CYRIL E. KING AP/ST THOMAS  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        91      1994
 MINIMUM TEMPERATURE (F)   73        65      1982


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   646 AM AST   SUNSET   548 PM AST
DECEMBER 19 2017......SUNRISE   646 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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