388  
CDHW40 PHFO 281245  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
245 AM HST TUE SEP 28 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR SEPTEMBER 27 2021
 
 
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)  
YESTERDAY  
MAXIMUM 89 224 PM 93 1987 88 1 90  
MINIMUM 76 647 AM 68 1996 75 1 76  
AVERAGE 83 81 2 83  
 
PRECIPITATION (IN)  
YESTERDAY T 0.22 1986 0.02 -0.02 0.00  
MONTH TO DATE 0.12 0.80 -0.68 0.10  
SINCE SEP 1 0.12 0.80 -0.68 0.10  
SINCE JAN 1 10.00 10.39 -0.39 9.98  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 18 16 2 18  
MONTH TO DATE 457 449 8 480  
SINCE SEP 1 457 449 8 480  
SINCE JAN 1 3707 3526 181 3696    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 9.7  
 
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 71 400 AM  
LOWEST 48 200 PM  
AVERAGE 60  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 91 1988  
1995  
1997  
MINIMUM TEMPERATURE (F) 75 69 1950  
1975  
1977  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2021.....SUNRISE 622 AM HST SUNSET 622 PM HST  
SEPTEMBER 29 2021.....SUNRISE 622 AM HST SUNSET 621 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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