Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 082017
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
417 PM AST MON SEP 08 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR SEPTEMBER 8 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 91 MM 95 1993 89 2 90
MINIMUM 82 MM 68 1979 80 2 80
AVERAGE 87 84 3 85
PRECIPITATION (IN)
TODAY 0.01 11.86 1953 0.19 -0.18 0.03
MONTH TO DATE 0.45 1.54 -1.09 2.04
SINCE SEP 1 0.45 1.54 -1.09 2.04
SINCE JAN 1 22.10 22.83 -0.73 13.18
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 20 2 20
MONTH TO DATE 63 160 -97 162
SINCE SEP 1 63 160 -97 162
SINCE JAN 1 4313 4211 102 2960
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 10.3
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 63
AVERAGE 73
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 1995
MINIMUM TEMPERATURE (F) 80 69 1980
SUNRISE AND SUNSET
SEPTEMBER 8 2025.....SUNRISE 6:07 AM AST SUNSET 6:28 PM AST
SEPTEMBER 9 2025.....SUNRISE 6:07 AM AST SUNSET 6:27 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$