198  
CDUS46 KSGX 140922  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
122 AM PST TUE JAN 14 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 13 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 63 12:37 PM 84 2018 68 -5 64  
MINIMUM 53 7:45 AM 29 2013 45 8 37  
AVERAGE 58 56 2 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.16 2010 0.09 -0.09 0.00  
MONTH TO DATE T 1.15 -1.15 0.44  
SINCE JUL 1 0.15 4.43 -4.28 3.95  
SINCE OCT 1 0.15 4.25 -4.10 1.79  
SINCE JAN 1 T 1.15 -1.15 0.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 9 -2 14  
MONTH TO DATE 80 121 -41 186  
SINCE DEC 1 276 425 -149 377  
SINCE JUL 1 427 587 -160 470  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE DEC 1 6 2 4 2  
SINCE JAN 1 1 0 1 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 16.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 18 5:00 AM  
LOWEST 13 11:00 PM  
AVERAGE 16  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 87 2021  
MINIMUM TEMPERATURE (F) 45 25 1962  
2007  
 
SUNRISE AND SUNSET  
JANUARY 14 2025.......SUNRISE 6:56 AM PST SUNSET 5:04 PM PST  
JANUARY 15 2025.......SUNRISE 6:56 AM PST SUNSET 5:05 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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