Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 212121
CLIIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
521 PM AST MON JUL 21 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR JULY 21 2025...
VALID TODAY AS OF 0500 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 92 MM 97 1993 90 2 90
MINIMUM 79 MM 68 1999 79 0 82
AVERAGE 86 84 2 86
PRECIPITATION (IN)
TODAY 0.02 1.21 1958 0.10 -0.08 T
MONTH TO DATE 1.06 1.85 -0.79 2.35
SINCE JUN 1 1.90 4.20 -2.30 2.35
SINCE JAN 1 18.00 15.86 2.14 2.35
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 21 20 1 21
MONTH TO DATE 417 420 -3 419
SINCE JUN 1 1028 993 35 754
SINCE JAN 1 3420 3256 164 1999
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 10.2
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85
LOWEST 56
AVERAGE 71
..........................................................
THE CYRIL E. KING AP/ST THOMAS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 97 1994
MINIMUM TEMPERATURE (F) 79 66 1999
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 5:54 AM AST SUNSET 6:58 PM AST
JULY 22 2025..........SUNRISE 5:55 AM AST SUNSET 6:58 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$