270
CDCA42 TJSJ 171958
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
358 PM AST WED DEC 17 2025
...............................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR DECEMBER 17 2025...
VALID TODAY AS OF 0300 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 86 1:59 PM 91 1994 85 1 87
MINIMUM 78 2:06 AM 65 1972 75 3 76
AVERAGE 82 80 2 82
PRECIPITATION (IN)
TODAY 0.11 1.13 2002 0.09 0.02 0.53
MONTH TO DATE 1.00 1.77 -0.77 1.01
SINCE DEC 1 1.00 1.77 -0.77 1.01
SINCE JAN 1 29.66 40.29 -10.63 36.08
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 17
MONTH TO DATE 270 263 7 276
SINCE DEC 1 270 263 7 276
SINCE JAN 1 5647 5961 -314 4764
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 10.9
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 65
AVERAGE 80
......................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 91 1994
MINIMUM TEMPERATURE (F) 75 65 1982
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 6:45 AM AST SUNSET 5:47 PM AST
DECEMBER 18 2025......SUNRISE 6:46 AM AST SUNSET 5:48 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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