836  
CDUS46 KSGX 100922  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
122 AM PST FRI JAN 10 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 9 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 75 12:51 PM 83 2007 68 7 62  
MINIMUM 43 4:05 AM 36 2000 44 -1 37  
AVERAGE 59 56 3 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.23 2005 0.09 -0.09 0.00  
MONTH TO DATE T 0.80 -0.80 0.44  
SINCE JUL 1 0.15 4.08 -3.93 3.95  
SINCE OCT 1 0.15 3.90 -3.75 1.79  
SINCE JAN 1 T 0.80 -0.80 0.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 9 -3 15  
MONTH TO DATE 55 85 -30 126  
SINCE DEC 1 251 389 -138 317  
SINCE JUL 1 402 551 -149 410  
 
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 15 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 46 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 76 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 17.4  
 
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 35 3:00 AM  
LOWEST 8 8:00 PM  
AVERAGE 22  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 78 1999  
2004  
MINIMUM TEMPERATURE (F) 44 37 2024  
 
SUNRISE AND SUNSET  
JANUARY 10 2025.......SUNRISE 6:57 AM PST SUNSET 5:00 PM PST  
JANUARY 11 2025.......SUNRISE 6:56 AM PST SUNSET 5:01 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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