Climatological Report (Daily)
Issued by NWS
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CDCA42 TJSJ 210904
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
504 AM AST FRI AUG 21 2026
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR AUGUST 20 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 94 3:32 PM 97 1993 90 4 90
MINIMUM 80 3:56 AM 73 1954 80 0 83
AVERAGE 87 85 2 87
PRECIPITATION (IN)
YESTERDAY 0.00 2.04 1954 0.14 -0.14 0.00
MONTH TO DATE 0.80 2.64 -1.84 2.64
SINCE JUN 1 1.59 7.90 -6.31 4.68
SINCE JAN 1 10.82 19.56 -8.74 20.78
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 22 20 2 22
MONTH TO DATE 399 400 -1 433
SINCE JUN 1 1673 1577 96 1677
SINCE JAN 1 4109 3840 269 4069
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 12.8
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70
LOWEST 24
AVERAGE 47
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 98 1992
MINIMUM TEMPERATURE (F) 80 73 2025
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 6:03 AM AST SUNSET 6:42 PM AST
AUGUST 22 2026........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.
$$