518
CDCA42 TJSJ 171934
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
334 PM AST WED SEP 17 2025
...............................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR SEPTEMBER 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 92 12:35 PM 95 1991 89 3 90
MINIMUM 82 2:35 AM 64 1972 80 2 81
AVERAGE 87 84 3 86
PRECIPITATION (IN)
TODAY 0.09 0.85 1984 0.20 -0.11 0.10
MONTH TO DATE 1.00 3.27 -2.27 5.54
SINCE SEP 1 1.00 3.27 -2.27 5.54
SINCE JAN 1 22.65 24.56 -1.91 16.68
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 22 19 3 21
MONTH TO DATE 263 334 -71 335
SINCE SEP 1 263 334 -71 335
SINCE JAN 1 4513 4385 128 3133
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 11.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85
LOWEST 56
AVERAGE 71
......................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 96 1994
MINIMUM TEMPERATURE (F) 80 71 1972
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 6:08 AM AST SUNSET 6:20 PM AST
SEPTEMBER 18 2025.....SUNRISE 6:08 AM AST SUNSET 6:19 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page