177  
CDHW43 PHFO 181245  
CLIITO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE HONOLULU HI  
245 AM HST THU MAY 18 2023  
   
...............................
 
 
   
..THE HILO HI CLIMATE SUMMARY FOR MAY 17 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1949 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 203 PM 88 2020 81 -4 82  
MINIMUM 68 530 AM 61 1987 67 1 68  
AVERAGE 73 74 -1 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 2.35 1977 0.23 -0.12 0.27  
MONTH TO DATE 1.96 4.08 -2.12 11.95  
SINCE MAR 1 18.46 26.16 -7.70 31.93  
SINCE JAN 1 58.47 44.24 14.23 39.76  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE MAR 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 MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 8 9 -1 10  
MONTH TO DATE 156 146 10 158  
SINCE MAR 1 721 584 137 752  
SINCE JAN 1 1181 957 224 1269    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1200 AM  
LOWEST 69 200 PM  
AVERAGE 83  
   
......................................................
 
 
THE HILO HI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 91 1967  
MINIMUM TEMPERATURE (F) 67 61 1985  
 
SUNRISE AND SUNSET  
MAY 18 2023...........SUNRISE 544 AM HST SUNSET 650 PM HST  
MAY 19 2023...........SUNRISE 543 AM HST SUNSET 650 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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