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

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904
CDCA42 TJSJ 152103
CLISJU

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
503 PM AST TUE SEP 15 2026

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 15 2026...
VALID TODAY AS OF 0500 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         88   2:07 PM  96    2024  89     -1       90
  MINIMUM         77   8:58 AM  69    1960  78     -1       78
  AVERAGE         83                        83      0       84

PRECIPITATION (IN)
  TODAY            0.31          3.82 2004   0.22   0.09     0.05
  MONTH TO DATE    3.12                      3.47  -0.35     2.59
  SINCE SEP 1      3.12                      3.47  -0.35     2.59
  SINCE JAN 1     28.05                     39.41 -11.36    46.21

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1      0                         0      0        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           18                        18      0       19
  MONTH TO DATE  293                       270     23      290
  SINCE SEP 1    293                       270     23      290
  SINCE JAN 1   4411                      4081    330     4335
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     6.2


SKY COVER
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85
 LOWEST     63
 AVERAGE    74

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        93      1900
 MINIMUM TEMPERATURE (F)   78        69      1929


SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE   6:12 AM AST   SUNSET   6:26 PM AST
SEPTEMBER 16 2026.....SUNRISE   6:12 AM AST   SUNSET   6:25 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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