306  
CDHW40 PHFO 010234  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
434 PM HST THU SEP 30 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR SEPTEMBER 30 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 92 1988 88 -1 87  
MINIMUM 74 539 AM 67 1981 75 -1 71  
AVERAGE 81 81 0 79  
 
PRECIPITATION (IN)  
TODAY T 0.45 2013 0.02 -0.02 0.00  
MONTH TO DATE 0.12 0.88 -0.76 0.10  
SINCE SEP 1 0.12 0.88 -0.76 0.10  
SINCE JAN 1 10.00 10.47 -0.47 9.98  
 
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 16 0 14  
MONTH TO DATE 507 498 9 530  
SINCE SEP 1 507 498 9 530  
SINCE JAN 1 3757 3575 182 3746    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 10.1  
 
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 74 400 AM  
LOWEST 50 200 PM  
AVERAGE 62  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 1986  
1988  
MINIMUM TEMPERATURE (F) 75 69 1954  
1970  
1992  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2021.....SUNRISE 623 AM HST SUNSET 620 PM HST  
OCTOBER 1 2021.......SUNRISE 623 AM HST SUNSET 619 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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