927  
CDUS46 KSGX 090924  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
124 AM PST MON DEC 09 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 8 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 73 3:18 PM 83 2015 67 6 66  
2017  
MINIMUM 45 6:59 AM 33 1998 44 1 44  
AVERAGE 59 56 3 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.10 2004 0.06 -0.06 0.00  
MONTH TO DATE 0.00 0.42 -0.42 T  
SINCE JUL 1 0.15 1.81 -1.66 2.53  
SINCE OCT 1 0.15 1.63 -1.48 0.37  
SINCE JAN 1 16.44 10.17 6.27 20.77  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 10 -4 10  
MONTH TO DATE 32 71 -39 50  
SINCE DEC 1 32 71 -39 50  
SINCE JUL 1 183 233 -50 143  
 
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 1 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 1.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 11:00 PM  
LOWEST 18 1:00 PM  
AVERAGE 49  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 84 2017  
MINIMUM TEMPERATURE (F) 44 35 2013  
 
SUNRISE AND SUNSET  
DECEMBER 9 2024......SUNRISE 6:45 AM PST SUNSET 4:41 PM PST  
DECEMBER 10 2024......SUNRISE 6:46 AM PST SUNSET 4:42 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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