Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 200850
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
450 AM AST WED AUG 20 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR AUGUST 19 2025...
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)
YESTERDAY
MAXIMUM 89 4:21 PM 96 1993 90 -1 90
MINIMUM 84 9:09 PM 74 1979 80 4 81
AVERAGE 87 85 2 86
PRECIPITATION (IN)
YESTERDAY 0.00 1.12 1995 0.14 -0.14 0.01
MONTH TO DATE 2.64 2.50 0.14 6.88
SINCE JUN 1 4.68 7.76 -3.08 10.06
SINCE JAN 1 20.78 19.42 1.36 10.06
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 21
MONTH TO DATE 411 380 31 359
SINCE JUN 1 1655 1557 98 1308
SINCE JAN 1 4047 3820 227 2553
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 10.5
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85
LOWEST 70
AVERAGE 78
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 97 1993
MINIMUM TEMPERATURE (F) 80 73 1954
SUNRISE AND SUNSET
AUGUST 20 2025........SUNRISE 6:03 AM AST SUNSET 6:43 PM AST
AUGUST 21 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.
$$