Climatological Report (Daily)
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341
CDCA42 TJSJ 152010
CLIIST

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
410 PM AST MON DEC 15 2025

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

...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR DECEMBER 15 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1953 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         87        MM  91    1994  85      2       85
  MINIMUM         76        MM  70    2010  75      1       76
  AVERAGE         82                        80      2       81

PRECIPITATION (IN)
  TODAY            0.00          2.06 2014   0.09  -0.09     0.00
  MONTH TO DATE    0.89                      1.59  -0.70     0.48
  SINCE DEC 1      0.89                      1.59  -0.70     0.48
  SINCE JAN 1     29.55                     40.11 -10.56    35.55

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           17                        15      2       16
  MONTH TO DATE  236                       233      3      242
  SINCE DEC 1    236                       233      3      242
  SINCE JAN 1   5613                      5931   -318     4730
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED     6.4


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90
 LOWEST     70
 AVERAGE    80

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


THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   85        92      1994
 MINIMUM TEMPERATURE (F)   75        69      1954


SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE   6:44 AM AST   SUNSET   5:46 PM AST
DECEMBER 16 2025......SUNRISE   6:45 AM AST   SUNSET   5:47 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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