Climatological Report (Daily)
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646
CDCA42 TJSJ 171939
CLIISX

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
339 PM AST SUN AUG 17 2025

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

...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR AUGUST 17 2025...
VALID TODAY AS OF 0300 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1951 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         87   1:59 PM  95    2020  90     -3       91
                                      2023
  MINIMUM         77   5:37 AM  63    1978  78     -1       79
  AVERAGE         82                        84     -2       85

PRECIPITATION (IN)
  TODAY            0.03          2.92 1978   0.11  -0.08    MM
  MONTH TO DATE    0.03                      1.67  -1.64      T
  SINCE JUN 1      3.26                      6.23  -2.97     1.87
  SINCE JAN 1      3.33                     16.98 -13.65     9.77

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           17                        18     -1       20
  MONTH TO DATE  298                       306     -8      344
  SINCE JUN 1   1383                      1406    -23     1600
  SINCE JAN 1   3607                      3520     87     3487
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED    14.0


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94
 LOWEST     70
 AVERAGE    82

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


THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90        95      2020
 MINIMUM TEMPERATURE (F)   78        72      1975


SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE   6:02 AM AST   SUNSET   6:44 PM AST
AUGUST 18 2025........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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