586  
CDUS46 KSGX 081021  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
221 AM PST FRI DEC 08 2023  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 7 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 65 3:25 PM 82 2006 68 -3 60  
MINIMUM 49 3:03 AM 32 2011 44 5 45  
AVERAGE 57 56 1 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.07 2009 0.06 -0.06 0.00  
MONTH TO DATE T 0.36 -0.36 0.05  
SINCE JUL 1 2.53 1.75 0.78 2.74  
SINCE OCT 1 0.37 1.57 -1.20 2.44  
SINCE JAN 1 20.97 10.11 10.86 4.14  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 9 -1 12  
MONTH TO DATE 40 61 -21 70  
SINCE DEC 1 40 61 -21 70  
SINCE JUL 1 133 223 -90 296  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE DEC 1 2 0 2 0  
SINCE JAN 1 1695 1967 -272 2301    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 3.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 12:00 AM  
LOWEST 52 2:00 PM  
AVERAGE 75  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 83 2015  
2017  
MINIMUM TEMPERATURE (F) 44 33 1998  
 
SUNRISE AND SUNSET  
DECEMBER 8 2023......SUNRISE 6:43 AM PST SUNSET 4:41 PM PST  
DECEMBER 9 2023......SUNRISE 6:44 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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