604  
CDUS46 KSGX 151023  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
223 AM PST SUN DEC 15 2024  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 14 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 67 2:22 PM 82 2017 66 1 74  
MINIMUM 44 3:58 AM 32 2023 43 1 42  
AVERAGE 56 55 1 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.04 2021 0.06 -0.06 0.00  
MONTH TO DATE 0.00 0.78 -0.78 T  
SINCE JUL 1 0.15 2.17 -2.02 2.53  
SINCE OCT 1 0.15 1.99 -1.84 0.37  
SINCE JAN 1 16.44 10.53 5.91 20.77  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 10 -1 7  
MONTH TO DATE 83 131 -48 91  
SINCE DEC 1 83 131 -48 91  
SINCE JUL 1 234 293 -59 184  
 
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 2 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 3.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 11:00 PM  
LOWEST 38 3:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 81 2013  
2017  
MINIMUM TEMPERATURE (F) 43 32 2015  
 
SUNRISE AND SUNSET  
DECEMBER 15 2024......SUNRISE 6:49 AM PST SUNSET 4:43 PM PST  
DECEMBER 16 2024......SUNRISE 6:50 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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