Climatological Report (Daily)
Issued by NWS Honolulu, HI

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CDHW40 PHFO 220245
CLIHNL

CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
445 PM HST THU AUG 21 2025

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

...THE HONOLULU HI CLIMATE SUMMARY FOR AUGUST 21 2025...
VALID TODAY AS OF 0425 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1940 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         90    211 PM  93    1987  89      1       89
  MINIMUM         78    802 AM  70    1965  76      2       78
                                      1984
  AVERAGE         84                        82      2       84

PRECIPITATION (IN)
  TODAY            T             0.27 1978   0.03  -0.03      T
  MONTH TO DATE    T                         0.50  -0.50     0.03
  SINCE JUN 1      0.15                      1.52  -1.37     0.11
  SINCE JAN 1      8.88                      9.25  -0.37     9.59

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           19                        17      2       19
  MONTH TO DATE  382                       357     25      370
  SINCE JUN 1   1397                      1332     65     1346
  SINCE JAN 1   3306                      2901    405     2936
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED    14.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72           800 AM
 LOWEST     42           200 PM
 AVERAGE    57

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


THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        93      1995
 MINIMUM TEMPERATURE (F)   76        68      2009


SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE   612 AM HST   SUNSET   657 PM HST
AUGUST 22 2025........SUNRISE   613 AM HST   SUNSET   656 PM HST


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




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