379  
CDHW40 PHFO 201245  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
245 AM HST WED AUG 20 2025  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR AUGUST 19 2025
 
 
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)  
YESTERDAY  
MAXIMUM 90 235 PM 93 1994 89 1 89  
1995  
MINIMUM 78 349 AM 65 2009 76 2 76  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.61 1986 0.03 -0.03 T  
MONTH TO DATE T 0.44 -0.44 0.03  
SINCE JUN 1 0.15 1.46 -1.31 0.11  
SINCE JAN 1 8.88 9.19 -0.31 9.59  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 19 17 2 18  
MONTH TO DATE 345 323 22 332  
SINCE JUN 1 1360 1298 62 1308  
SINCE JAN 1 3269 2867 402 2898    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 13.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 200 AM  
LOWEST 48 1000 AM  
AVERAGE 61  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 1986  
MINIMUM TEMPERATURE (F) 76 66 2009  
 
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.  
 

 
 
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