Climatological Report (Daily)
Issued by NWS Honolulu, HI

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CDHW40 PHFO 011245
CLIHNL

CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
245 AM HST MON SEP 01 2025

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

...THE HONOLULU CLIMATE SUMMARY FOR AUGUST 31 2025...

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)
 YESTERDAY
  MAXIMUM         86    143 PM  95    2019  89     -3       88
  MINIMUM         75    700 AM  69    1987  75      0       78
  AVERAGE         81                        82     -1       83

PRECIPITATION (IN)
  YESTERDAY        T             1.71 1996   0.04  -0.04     0.01
  MONTH TO DATE    T                         0.84  -0.84     0.15
  SINCE JUN 1      0.15                      1.86  -1.71     0.23
  SINCE JAN 1      8.88                      9.59  -0.71     9.71

DEGREE DAYS
 HEATING
  YESTERDAY        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
  YESTERDAY       16                        17     -1       18
  MONTH TO DATE  561                       533     28      541
  SINCE JUN 1   1576                      1508     68     1517
  SINCE JAN 1   3485                      3077    408     3107
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     6.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           500 AM
 LOWEST     55           200 PM
 AVERAGE    66

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


THE HONOLULU CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        93      1984
 MINIMUM TEMPERATURE (F)   75        68      1975


SUNRISE AND SUNSET
SEPTEMBER  1 2025.....SUNRISE  1012 AM HDT   SUNSET  1044 PM HDT
SEPTEMBER  2 2025.....SUNRISE  1012 AM HDT   SUNSET  1043 PM HDT


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




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