Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 211952
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
352 PM AST THU AUG 21 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR AUGUST 21 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 93 1:55 PM 98 1992 90 3 89
MINIMUM 81 5:59 AM 74 1989 80 1 79
AVERAGE 87 85 2 84
PRECIPITATION (IN)
TODAY 0.00 2.87 2011 0.14 -0.14 0.37
MONTH TO DATE 2.64 2.78 -0.14 7.33
SINCE JUN 1 4.68 8.04 -3.36 10.51
SINCE JAN 1 20.78 19.70 1.08 10.51
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 22 20 2 19
MONTH TO DATE 455 420 35 399
SINCE JUN 1 1699 1597 102 1348
SINCE JAN 1 4091 3860 231 2593
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79
LOWEST 56
AVERAGE 68
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 1994
MINIMUM TEMPERATURE (F) 80 73 1982
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 6:03 AM AST SUNSET 6:42 PM AST
AUGUST 22 2025........SUNRISE 6:03 AM AST SUNSET 6:42 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$