


Climatological Report (Monthly)
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
417 CXHW53 PHFO 011625 CLMITO CLIMATE REPORT NATIONAL WEATHER SERVICE HONOLULU HI 625 AM HST MON SEP 01 2025 ................................... ...THE HILO/GEN.LYMAN FLD CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 08/15/1950 LOW 63 08/01/1955 HIGHEST 88 08/11 83 5 88 08/30 LOWEST 67 08/24 69 -2 67 08/20 AVG. MAXIMUM 84.9 82.9 2.0 83.5 AVG. MINIMUM 70.0 70.4 -0.4 69.7 MEAN 77.5 76.6 0.9 76.6 DAYS MAX >= 93 0 0 DAYS MAX >= 90 0 0 DAYS MAX <= 80 2 2 DAYS MIN >= 72 6 2 DAYS MIN <= 60 0 0 DAYS MIN <= 55 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 48.85 2018 MINIMUM 2.66 1971 TOTALS 2.06R 11.30 -9.24 11.56 DAILY AVG. 0.05 0.36 -0.32 0.37 DAYS >= .01 19 27.2 -8.2 28 DAYS >= .10 5 18.2 -13.2 20 DAYS >= .50 1 6.0 -5.0 3 DAYS >= 1.00 0 2.2 -2.2 2 GREATEST 24 HR. TOTAL 0.70 08/17 TO 08/17 5.50 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 393 361 32 368 SINCE 1/1 2501 2111 390 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.5 HIGHEST WIND SPEED/DIRECTION 18/060 DATE 08/02 18/080 08/08 18/050 08/12 18/070 08/21 HIGHEST GUST SPEED/DIRECTION 26/080 DATE 08/15 26/040 08/16 26/100 08/25 26/110 08/31 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.69 NUMBER OF DAYS FAIR 0 NUMBER OF DAYS PC 19 NUMBER OF DAYS CLOUDY 10 AVERAGE RH (PERCENT) 74 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM MM MIXED PRECIP MM HEAVY RAIN 3 RAIN 7 LIGHT RAIN 19 FREEZING RAIN MM LT FREEZING RAIN MM HAIL MM HEAVY SNOW MM SNOW MM LIGHT SNOW MM SLEET MM FOG 16 FOG W/VIS <= 1/4 MILE MM HAZE 9 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$