038  
CDHW40 PHFO 210231  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
431 PM HST WED OCT 20 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR OCTOBER 20 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 87 159 PM 91 2009 87 0 85  
MINIMUM 69 608 AM 64 1981 74 -5 77  
AVERAGE 78 80 -2 81  
 
PRECIPITATION (IN)  
TODAY T 3.09 1985 0.05 -0.05 0.16  
MONTH TO DATE 0.02 0.81 -0.79 0.79  
SINCE SEP 1 0.14 1.69 -1.55 0.89  
SINCE JAN 1 10.02 11.28 -1.26 10.77  
 
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 13 15 -2 16  
MONTH TO DATE 322 316 6 324  
SINCE SEP 1 829 814 15 854  
SINCE JAN 1 4079 3891 188 4070    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 7.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 600 AM  
LOWEST 32 200 PM  
AVERAGE 55  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 2015  
MINIMUM TEMPERATURE (F) 74 64 1955  
 
SUNRISE AND SUNSET  
OCTOBER 20 2021.......SUNRISE 630 AM HST SUNSET 603 PM HST  
OCTOBER 21 2021.......SUNRISE 630 AM HST SUNSET 602 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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