Climatological Report (Daily)
Issued by NWS
Issued by NWS
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840
CDCA42 TJSJ 171948
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
348 PM AST MON AUG 17 2026
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR AUGUST 17 2026...
VALID TODAY AS OF 0300 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1953 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 94 1:45 PM 95 1995 90 4 85
MINIMUM 84 6:26 AM 74 2015 80 4 76
AVERAGE 89 85 4 81
PRECIPITATION (IN)
TODAY 0.00 4.24 2022 0.14 -0.14 2.22
MONTH TO DATE 0.80 2.23 -1.43 2.63
SINCE JUN 1 1.59 7.49 -5.90 4.67
SINCE JAN 1 10.82 19.15 -8.33 20.77
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 24 20 4 16
MONTH TO DATE 334 340 -6 368
SINCE JUN 1 1608 1517 91 1612
SINCE JAN 1 4044 3780 264 4004
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 9.6
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70
LOWEST 49
AVERAGE 60
..........................................................
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 1953
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 6:02 AM AST SUNSET 6:45 PM AST
AUGUST 18 2026........SUNRISE 6:03 AM AST SUNSET 6:45 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$