478  
CDHW40 PHFO 101245  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
245 AM HST FRI SEP 10 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR SEPTEMBER 9 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 88 226 PM 92 2019 89 -1 90  
MINIMUM 76 1152 PM 68 1955 75 1 78  
AVERAGE 82 82 0 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.66 1974 0.03 -0.03 T  
MONTH TO DATE T 0.31 -0.31 0.02  
SINCE SEP 1 T 0.31 -0.31 0.02  
SINCE JAN 1 9.88 9.90 -0.02 9.90  
 
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 17 17 0 19  
MONTH TO DATE 153 153 0 165  
SINCE SEP 1 153 153 0 165  
SINCE JAN 1 3403 3230 173 3381    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 10.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 500 AM  
LOWEST 46 1000 AM  
AVERAGE 58  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 92 1995  
2009  
2019  
MINIMUM TEMPERATURE (F) 75 68 1985  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2021.....SUNRISE 618 AM HST SUNSET 639 PM HST  
SEPTEMBER 11 2021.....SUNRISE 618 AM HST SUNSET 638 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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