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

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763
CDCA42 TJSJ 181952
CLISJU

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
352 PM AST FRI SEP 18 2026

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 18 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         91  12:28 PM  96    1995  89      2       82
  MINIMUM         79   4:05 AM  71    1960  78      1       76
  AVERAGE         85                        83      2       79

PRECIPITATION (IN)
  TODAY            0.00          8.84 1989   0.22  -0.22     0.56
  MONTH TO DATE    4.36                      4.12   0.24     3.59
  SINCE SEP 1      4.36                      4.12   0.24     3.59
  SINCE JAN 1     29.29                     40.06 -10.77    47.21

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           20                        18      2       14
  MONTH TO DATE  352                       324     28      344
  SINCE SEP 1    352                       324     28      344
  SINCE JAN 1   4470                      4135    335     4389
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     6.0


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94
 LOWEST     59
 AVERAGE    77

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        95      2013
 MINIMUM TEMPERATURE (F)   77        71      1950


SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE   6:12 AM AST   SUNSET   6:24 PM AST
SEPTEMBER 19 2026.....SUNRISE   6:12 AM AST   SUNSET   6:23 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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