Climatological Report (Daily)
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CDCA42 TJSJ 170857
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
457 AM AST MON AUG 17 2026
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR AUGUST 16 2026...
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)
YESTERDAY
MAXIMUM 93 11:03 AM 97 1995 90 3 86
MINIMUM 82 5:58 AM 72 1988 80 2 80
AVERAGE 88 85 3 83
PRECIPITATION (IN)
YESTERDAY 0.00 1.61 1978 0.15 -0.15 MM
MONTH TO DATE 0.80 2.09 -1.29 0.41
SINCE JUN 1 1.59 7.35 -5.76 2.45
SINCE JAN 1 10.82 19.01 -8.19 18.55
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 23 20 3 18
MONTH TO DATE 310 320 -10 352
SINCE JUN 1 1584 1497 87 1596
SINCE JAN 1 4020 3760 260 3988
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 12.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72
LOWEST 24
AVERAGE 48
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 1995
MINIMUM TEMPERATURE (F) 80 74 2015
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.
$$