499
CXHW53 PHFO 011625
CLMITO
CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
625 AM HST WED OCT 01 2025
...............................
...THE HILO/GEN.LYMAN FLD CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1949 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 93 09/02/2015
09/26/2014
LOW 61 09/30/1970
HIGHEST 89 09/06 83 6 86 09/10
09/11
09/30
LOWEST 67 09/10 69 -2 67 09/30
09/24
09/26
AVG. MAXIMUM 85.2 83.3 1.9 84.0
AVG. MINIMUM 69.6 69.8 -0.2 70.0
MEAN 77.4 76.5 0.9 77.0
DAYS MAX >= 93 0 0
DAYS MAX >= 90 0 0
DAYS MAX <= 80 0 0
DAYS MIN >= 72 2 5
DAYS MIN <= 60 0 0
DAYS MIN <= 55 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 21.82 1994
MINIMUM 1.59 1974
TOTALS 2.76 8.70 -5.94 6.75
DAILY AVG. 0.09 0.29 -0.20 0.22
DAYS >= .01 20 23.3 -3.3 25
DAYS >= .10 7 15.3 -8.3 14
DAYS >= .50 1 4.8 -3.8 2
DAYS >= 1.00 0 1.6 -1.6 1
GREATEST
24 HR. TOTAL 0.74 09/10 TO 09/11 3.19
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 379 346 33 366
SINCE 1/1 2880 2457 423 MM
............................................................
WIND (MPH)
AVERAGE WIND SPEED 6.4
HIGHEST WIND SPEED/DIRECTION 21/100 DATE 09/25
HIGHEST GUST SPEED/DIRECTION 30/110 DATE 09/25
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.59
NUMBER OF DAYS FAIR 3
NUMBER OF DAYS PC 21
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 73
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM MM MIXED PRECIP MM
HEAVY RAIN 7 RAIN 5
LIGHT RAIN 17 FREEZING RAIN MM
LT FREEZING RAIN MM HAIL MM
HEAVY SNOW MM SNOW MM
LIGHT SNOW MM SLEET MM
FOG 18 FOG W/VIS <= 1/4 MILE MM
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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