Climatological Report (Daily)
Issued by NWS San Juan, PR

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855
CDCA42 TJSJ 211948
CLISJU

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
348 PM AST FRI AUG 21 2026

...................................

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 21 2026...
VALID TODAY AS OF 0300 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         90   1:48 PM  97    1980  89      1       89
  MINIMUM         80   6:44 AM  72    1956  78      2       81
  AVERAGE         85                        84      1       85

PRECIPITATION (IN)
  TODAY            0.00          2.72 1983   0.20  -0.20     0.00
  MONTH TO DATE    0.90                      4.06  -3.16     5.45
  SINCE JUN 1      2.96                     14.74 -11.78    15.03
  SINCE JAN 1     23.91                     33.71  -9.80    39.43

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           20                        18      2       20
  MONTH TO DATE  437                       378     59      409
  SINCE JUN 1   1655                      1484    171     1522
  SINCE JAN 1   3908                      3617    291     3846
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     9.3


SKY COVER
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77
 LOWEST     61
 AVERAGE    69

..........................................................


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        93      2007
 MINIMUM TEMPERATURE (F)   78        70      1916


SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE   6:07 AM AST   SUNSET   6:47 PM AST
AUGUST 22 2026........SUNRISE   6:07 AM AST   SUNSET   6:46 PM AST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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