803  
CDUS46 KSGX 140146  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
546 PM PST FRI DEC 13 2024  
   
...............................  
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 13 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 62 3:28 PM 83 2017 67 -5 71  
MINIMUM 45 6:19 AM 36 2015 43 2 45  
AVERAGE 54 55 -1 58  
 
PRECIPITATION (IN)  
TODAY 0.00 0.58 2012 0.06 -0.06 0.00  
MONTH TO DATE 0.00 0.72 -0.72 T  
SINCE JUL 1 0.15 2.11 -1.96 2.53  
SINCE OCT 1 0.15 1.93 -1.78 0.37  
SINCE JAN 1 16.44 10.47 5.97 20.77  
 
DEGREE DAYS  
HEATING  
TODAY 11 10 1 7  
MONTH TO DATE 74 121 -47 84  
SINCE DEC 1 74 121 -47 84  
SINCE JUL 1 225 283 -58 177  
 
COOLING  
TODAY 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 N (350)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 1.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 7:00 AM  
LOWEST 46 3:00 PM  
AVERAGE 72  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 82 2017  
MINIMUM TEMPERATURE (F) 43 32 2023  
 
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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