436  
CDUS46 KSGX 310030  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
430 PM PST MON DEC 30 2024  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 30 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 66 3:49 PM 79 1998 67 -1 60  
MINIMUM 48 9:20 AM 34 2010 44 4 51  
AVERAGE 57 55 2 56  
 
PRECIPITATION (IN)  
TODAY 0.00 0.58 2021 0.07 -0.07 0.15  
MONTH TO DATE T 1.82 -1.82 0.98  
SINCE JUL 1 0.15 3.21 -3.06 3.51  
SINCE OCT 1 0.15 3.03 -2.88 1.35  
SINCE JAN 1 16.44 11.57 4.87 21.75  
 
DEGREE DAYS  
HEATING  
TODAY 8 10 -2 9  
MONTH TO DATE 186 291 -105 180  
SINCE DEC 1 186 291 -105 180  
SINCE JUL 1 337 453 -116 273  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 5 0 5 2  
SINCE DEC 1 5 0 5 2  
SINCE JAN 1 2032 1967 65 1695    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 3.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 6:00 AM  
LOWEST 48 3:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 79 2011  
MINIMUM TEMPERATURE (F) 44 30 2010  
 
SUNRISE AND SUNSET  
DECEMBER 30 2024......SUNRISE 6:56 AM PST SUNSET 4:51 PM PST  
DECEMBER 31 2024......SUNRISE 6:56 AM PST SUNSET 4:52 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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