Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 311930
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU JUL 31 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR JULY 31 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 89 1:33 PM 97 1993 90 -1 87
MINIMUM 80 5:32 AM 72 1955 79 1 78
AVERAGE 85 85 0 83
PRECIPITATION (IN)
TODAY 0.05 4.88 2019 0.11 -0.06 0.14
MONTH TO DATE 1.20 2.91 -1.71 3.18
SINCE JUN 1 2.04 5.26 -3.22 3.18
SINCE JAN 1 18.14 16.92 1.22 3.18
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 20 20 0 18
MONTH TO DATE 633 604 29 614
SINCE JUN 1 1244 1177 67 949
SINCE JAN 1 3636 3440 196 2194
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 9.8
SKY COVER
AVERAGE SKY COVER 0.2
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) 90 97 1994
MINIMUM TEMPERATURE (F) 79 73 1992
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 5:58 AM AST SUNSET 6:55 PM AST
AUGUST 1 2025........SUNRISE 5:58 AM AST SUNSET 6:54 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$