557  
CDHW43 PHFO 110245  
CLIITO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
445 PM HST WED SEP 10 2025  
   
...............................  
 
   
..THE HILO/GEN.LYMAN FLD CLIMATE SUMMARY FOR SEPTEMBER 10 2025  
 
VALID TODAY AS OF 0425 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1949 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 83 359 PM 90 1992 83 0 86  
2015  
MINIMUM 67 706 AM 62 1955 70 -3 69  
AVERAGE 75 77 -2 78  
 
PRECIPITATION (IN)  
TODAY 0.74 1.30 1987 0.27 0.47 0.00  
MONTH TO DATE 1.03 3.05 -2.02 0.91  
SINCE SEP 1 1.03 3.05 -2.02 0.91  
SINCE JAN 1 36.41 78.04 -41.63 69.13  
 
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 10 12 -2 13  
MONTH TO DATE 131 120 11 123  
SINCE SEP 1 131 120 11 123  
SINCE JAN 1 2632 2231 401 2423    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 400 AM  
LOWEST 67 100 PM  
AVERAGE 82  
   
......................................................  
 
THE HILO/GEN.LYMAN FLD CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 91 1992  
MINIMUM TEMPERATURE (F) 70 64 1955  
1970  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2025.....SUNRISE 1026 AM HDT SUNSET 1046 PM HDT  
SEPTEMBER 11 2025.....SUNRISE 1027 AM HDT SUNSET 1045 PM HDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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