000  
CDHW40 PHFO 190231  
CLIHNL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
431 PM HST MON OCT 18 2021  
   
...............................
 
 
   
..THE HONOLULU HI CLIMATE SUMMARY FOR OCTOBER 18 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 87 223 PM 91 1986 87 0 86  
MINIMUM 76 706 AM 66 1971 74 2 76  
1999  
AVERAGE 82 80 2 81  
 
PRECIPITATION (IN)  
TODAY 0.00 0.68 1973 0.04 -0.04 0.11  
MONTH TO DATE 0.02 0.71 -0.69 0.61  
SINCE SEP 1 0.14 1.59 -1.45 0.71  
SINCE JAN 1 10.02 11.18 -1.16 10.59  
 
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 15 2 16  
MONTH TO DATE 296 286 10 292  
SINCE SEP 1 803 784 19 822  
SINCE JAN 1 4053 3861 192 4038    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 14.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 67 300 AM  
LOWEST 43 100 PM  
AVERAGE 55  
   
......................................................
 
 
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1990  
1996  
2015  
MINIMUM TEMPERATURE (F) 74 66 1955  
1971  
 
SUNRISE AND SUNSET  
OCTOBER 18 2021.......SUNRISE 629 AM HST SUNSET 604 PM HST  
OCTOBER 19 2021.......SUNRISE 629 AM HST SUNSET 604 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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