500
CXHW50 PHFO 011625
CLMHNL

CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
625 AM HST WED OCT 01 2025

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

...THE HONOLULU CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

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

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             95   09/19/1994
 LOW              64   09/22/2019
HIGHEST           91   09/11         89       2       91  09/01
                                                          09/12
LOWEST            72   09/05         74      -2       72  09/10
                       09/25
                                                          09/11
AVG. MAXIMUM    88.9               88.4     0.5     88.9
AVG. MINIMUM    76.2               74.8     1.4     75.8
MEAN            82.6               81.6     1.0     82.4
DAYS MAX >= 93     0                                   0
DAYS MAX >= 90    10                                  13
DAYS MAX <= 80     0                                   0
DAYS MIN >= 72    30                                  30
DAYS MIN <= 60     0                                   0
DAYS MIN <= 55     0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.48   2015
 MINIMUM        0.05   1998
TOTALS          0.70               0.88   -0.18     0.06
DAILY AVG.      0.02               0.03   -0.01     0.00
DAYS >= .01        3                7.2    -4.2        3
DAYS >= .10        1                2.2    -1.2        0
DAYS >= .50        0                0.3    -0.3        0
DAYS >= 1.00       0                0.2    -0.2        0
GREATEST
 24 HR. TOTAL   0.50   09/08 TO 09/08               0.03


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    534                498      36      528
 SINCE 1/1      4019               3575     444       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.7
HIGHEST WIND SPEED/DIRECTION    26/070    DATE  09/19
                                26/080          09/20
HIGHEST GUST SPEED/DIRECTION    37/060    DATE  09/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       0
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       2     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$