Climatological Report (Daily)
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513
CDCA42 TJSJ 182120
CLIISX

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
520 PM AST TUE AUG 18 2026

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

...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR AUGUST 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1951 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         91   3:28 PM  95    2020  90      1       90
  MINIMUM         79   4:43 AM  72    1975  78      1       83
  AVERAGE         85                        84      1       87

PRECIPITATION (IN)
  TODAY            0.00          2.35 2013   0.10  -0.10    MM
  MONTH TO DATE    T                         1.77  -1.77     0.00
  SINCE JUN 1      0.11                      6.33  -6.22     3.23
  SINCE JAN 1      4.43                     17.08 -12.65     3.30

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       22
  MONTH TO DATE  247                       324    -77      321
  SINCE JUN 1   1383                      1424    -41     1406
  SINCE JAN 1   3602                      3538     64     3630
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     9.8


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85
 LOWEST     57
 AVERAGE    71

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


THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90        95      1972
 MINIMUM TEMPERATURE (F)   78        70      1979


SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE   6:03 AM AST   SUNSET   6:43 PM AST
AUGUST 19 2026........SUNRISE   6:03 AM AST   SUNSET   6:43 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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