151  
CDHW40 PHFO 221245  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
245 AM HST WED SEP 22 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR SEPTEMBER 21 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 88 143 PM 92 1990 88 0 85  
1995  
MINIMUM 76 652 AM 67 1975 75 1 69  
AVERAGE 82 82 0 77  
 
PRECIPITATION (IN)  
YESTERDAY 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)  
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 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 15.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 700 AM  
LOWEST 48 100 PM  
AVERAGE 57  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 93 1995  
MINIMUM TEMPERATURE (F) 75 66 1975  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2021.....SUNRISE 621 AM HST SUNSET 627 PM HST  
SEPTEMBER 23 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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