798  
CDUS46 KSGX 131026  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
226 AM PST FRI DEC 13 2024  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 12 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 61 11:46 AM 84 2010 67 -6 70  
MINIMUM 39 7:02 AM 36 2007 43 -4 43  
AVERAGE 50 55 -5 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.57 2014 0.06 -0.06 0.00  
MONTH TO DATE 0.00 0.66 -0.66 T  
SINCE JUL 1 0.15 2.05 -1.90 2.53  
SINCE OCT 1 0.15 1.87 -1.72 0.37  
SINCE JAN 1 16.44 10.41 6.03 20.77  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 10 5 8  
MONTH TO DATE 63 111 -48 77  
SINCE DEC 1 63 111 -48 77  
SINCE JUL 1 214 273 -59 170  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE DEC 1 0 0 0 2  
SINCE JAN 1 2027 1967 60 1695    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 8:00 PM  
LOWEST 24 9:00 AM  
AVERAGE 55  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 83 2017  
MINIMUM TEMPERATURE (F) 43 36 2015  
 
SUNRISE AND SUNSET  
DECEMBER 13 2024......SUNRISE 6:48 AM PST SUNSET 4:42 PM PST  
DECEMBER 14 2024......SUNRISE 6:48 AM PST SUNSET 4:43 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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