Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 310836
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
436 AM AST WED DEC 31 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR DECEMBER 30 2025...
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)
YESTERDAY
MAXIMUM 85 2:56 PM 90 1987 85 0 82
MINIMUM 73 5:55 AM 66 1972 74 -1 71
AVERAGE 79 79 0 77
PRECIPITATION (IN)
YESTERDAY 0.00 1.67 1992 0.08 -0.08 0.07
MONTH TO DATE 1.10 2.86 -1.76 4.25
SINCE DEC 1 1.10 2.86 -1.76 4.25
SINCE JAN 1 29.76 41.38 -11.62 39.32
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 14 14 0 12
MONTH TO DATE 434 453 -19 468
SINCE DEC 1 434 453 -19 468
SINCE JAN 1 5811 6151 -340 4956
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91
LOWEST 59
AVERAGE 75
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 90 1994
MINIMUM TEMPERATURE (F) 74 65 1972
SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE 6:51 AM AST SUNSET 5:55 PM AST
JANUARY 1 2026.......SUNRISE 6:52 AM AST SUNSET 5:55 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$