Climatological Report (Daily)
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
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CDHW40 PHFO 210245
CLIHNL
CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
445 PM HST WED AUG 20 2025
...................................
...THE HONOLULU HI CLIMATE SUMMARY FOR AUGUST 20 2025...
VALID TODAY AS OF 0425 PM LOCAL TIME.
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)
TODAY
MAXIMUM 88 349 PM 93 1986 89 -1 90
MINIMUM 78 700 AM 66 2009 76 2 78
AVERAGE 83 82 1 84
PRECIPITATION (IN)
TODAY T 0.19 2000 0.03 -0.03 T
MONTH TO DATE T 0.47 -0.47 0.03
SINCE JUN 1 0.15 1.49 -1.34 0.11
SINCE JAN 1 8.88 9.22 -0.34 9.59
DEGREE DAYS
HEATING
TODAY 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
TODAY 18 17 1 19
MONTH TO DATE 363 340 23 351
SINCE JUN 1 1378 1315 63 1327
SINCE JAN 1 3287 2884 403 2917
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 900 AM
LOWEST 47 300 PM
AVERAGE 57
..........................................................
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 93 1987
MINIMUM TEMPERATURE (F) 76 70 1965
1984
SUNRISE AND SUNSET
AUGUST 20 2025........SUNRISE 612 AM HST SUNSET 658 PM HST
AUGUST 21 2025........SUNRISE 612 AM HST SUNSET 657 PM HST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$