


Climatological Report (Monthly)
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
416 CXHW50 PHFO 011625 CLMHNL CLIMATE REPORT NATIONAL WEATHER SERVICE HONOLULU HI 625 AM HST MON SEP 01 2025 ................................... ...THE HONOLULU CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 08/31/2019 LOW 25 08/02/2024 HIGHEST 92 08/11 89 3 90 08/17 08/18 08/20 LOWEST 74 08/11 75 -1 73 08/02 08/14 08/30 08/03 AVG. MAXIMUM 89.2 88.8 0.4 88.5 AVG. MINIMUM 76.6 75.6 1.0 75.9 MEAN 82.9 82.2 0.7 82.2 DAYS MAX >= 93 0 0 DAYS MAX >= 90 13 6 DAYS MAX <= 80 0 0 DAYS MIN >= 72 31 31 DAYS MIN <= 60 0 0 DAYS MIN <= 55 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.74 2004 MINIMUM T 1974 TOTALS TR 0.84 -0.84 0.15 DAILY AVG. T 0.03 -0.03 0.00 DAYS >= .01 0 5.7 -5.7 9 DAYS >= .10 0 1.2 -1.2 0 DAYS >= .50 0 0.4 -0.4 0 DAYS >= 1.00 0 0.2 -0.2 0 GREATEST 24 HR. TOTAL T 08/31 TO 08/31 0.07 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 561 533 28 541 SINCE 1/1 3485 3077 408 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 11.9 HIGHEST WIND SPEED/DIRECTION 29/080 DATE 08/03 HIGHEST GUST SPEED/DIRECTION 39/110 DATE 08/02 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.44 NUMBER OF DAYS FAIR 9 NUMBER OF DAYS PC 19 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 61 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 5 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 0 FOG W/VIS <= 1/4 MILE 0 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$