886  
CDHW40 PHFO 220229  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
429 PM HST TUE SEP 21 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR SEPTEMBER 21 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 88 143 PM 92 1990 88 0 85  
1995  
MINIMUM 76 652 AM 67 1975 75 1 69  
AVERAGE 82 82 0 77  
 
PRECIPITATION (IN)  
TODAY T 0.57 1969 0.02 -0.02 0.03  
MONTH TO DATE 0.07 0.64 -0.57 0.08  
SINCE SEP 1 0.07 0.64 -0.57 0.08  
SINCE JAN 1 9.95 10.23 -0.28 9.96  
 
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 17 16 1 12  
MONTH TO DATE 354 353 1 371  
SINCE SEP 1 354 353 1 371  
SINCE JAN 1 3604 3430 174 3587    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 14.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 700 AM  
LOWEST 48 100 PM  
AVERAGE 57  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 93 1995  
MINIMUM TEMPERATURE (F) 75 66 1975  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2021.....SUNRISE 620 AM HST SUNSET 628 PM HST  
SEPTEMBER 22 2021.....SUNRISE 621 AM HST SUNSET 627 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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