538  
CDUS46 KSGX 050928  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
128 AM PST TUE DEC 05 2023  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 4 2023  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 3:26 PM 81 2007 68 10 63  
MINIMUM 45 5:19 AM 34 2011 44 1 46  
AVERAGE 62 56 6 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.95 2019 0.05 -0.05 T  
MONTH TO DATE T 0.20 -0.20 0.05  
SINCE JUL 1 2.53 1.59 0.94 2.74  
SINCE OCT 1 0.37 1.41 -1.04 2.44  
SINCE JAN 1 20.97 9.95 11.02 4.14  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 9 -6 10  
MONTH TO DATE 32 34 -2 36  
SINCE DEC 1 32 34 -2 36  
SINCE JUL 1 125 196 -71 262  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1693 1967 -274 2301    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (360)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 1.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 7:00 AM  
LOWEST 23 3:00 PM  
AVERAGE 47  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 80 2007  
MINIMUM TEMPERATURE (F) 44 34 2011  
 
SUNRISE AND SUNSET  
DECEMBER 5 2023......SUNRISE 6:41 AM PST SUNSET 4:41 PM PST  
DECEMBER 6 2023......SUNRISE 6:42 AM PST SUNSET 4:41 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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