492  
CDHW40 PHFO 180245  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
445 PM HST SUN OCT 17 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR OCTOBER 17 2021
 
 
VALID TODAY AS OF 0425 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1940 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 86 1126 AM 91 1983 87 -1 85  
1995  
MINIMUM 75 501 AM 66 1978 74 1 76  
AVERAGE 81 80 1 81  
 
PRECIPITATION (IN)  
TODAY 0.00 0.54 1978 0.05 -0.05 T  
MONTH TO DATE 0.02 0.67 -0.65 0.50  
SINCE SEP 1 0.14 1.55 -1.41 0.60  
SINCE JAN 1 10.02 11.14 -1.12 10.48  
 
SNOWFALL (IN)  
TODAY MM  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 16 15 1 16  
MONTH TO DATE 279 271 8 276  
SINCE SEP 1 786 769 17 806  
SINCE JAN 1 4036 3846 190 4022    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 14.4  
 
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 64 1200 AM  
LOWEST 43 1100 AM  
AVERAGE 54  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1986  
MINIMUM TEMPERATURE (F) 74 66 1971  
1999  
 
SUNRISE AND SUNSET  
OCTOBER 17 2021.......SUNRISE 628 AM HST SUNSET 605 PM HST  
OCTOBER 18 2021.......SUNRISE 629 AM HST SUNSET 604 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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