Climatological Report (Daily)
Issued by NWS
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004
CDCA42 TJSJ 130851
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
451 AM AST SAT SEP 13 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR SEPTEMBER 12 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 91 MM 95 1992 89 2 88
MINIMUM 82 MM 73 1984 80 2 80
2021
AVERAGE 87 84 3 84
PRECIPITATION (IN)
YESTERDAY T 0.86 1985 0.19 -0.19 0.02
MONTH TO DATE 0.48 2.31 -1.83 4.98
SINCE SEP 1 0.48 2.31 -1.83 4.98
SINCE JAN 1 22.13 23.60 -1.47 16.12
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 22 19 3 19
MONTH TO DATE 149 239 -90 233
SINCE SEP 1 149 239 -90 233
SINCE JAN 1 4399 4290 109 3031
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 63
AVERAGE 73
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 1993
MINIMUM TEMPERATURE (F) 80 72 1981
SUNRISE AND SUNSET
SEPTEMBER 13 2025.....SUNRISE 6:07 AM AST SUNSET 6:24 PM AST
SEPTEMBER 14 2025.....SUNRISE 6:08 AM AST SUNSET 6:23 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$