591  
CDUS46 KSGX 091013  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
213 AM PST TUE JAN 09 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 8 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 59 4:06 PM 87 1962 68 -9 64  
2007  
MINIMUM 34 6:53 AM 33 2000 44 -10 40  
AVERAGE 47 56 -9 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.67 2005 0.08 -0.08 0.00  
MONTH TO DATE 0.44 0.71 -0.27 1.13  
SINCE JUL 1 3.95 3.99 -0.04 6.67  
SINCE OCT 1 1.79 3.81 -2.02 6.37  
SINCE JAN 1 0.44 0.71 -0.27 1.13  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 9 9 13  
MONTH TO DATE 111 76 35 98  
SINCE DEC 1 302 380 -78 449  
SINCE JUL 1 395 542 -147 675  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 2 2 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 4.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 56 7:00 AM  
LOWEST 13 5:00 PM  
AVERAGE 35  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 83 2007  
MINIMUM TEMPERATURE (F) 44 36 2000  
 
SUNRISE AND SUNSET  
JANUARY 9 2024.......SUNRISE 6:57 AM PST SUNSET 4:59 PM PST  
JANUARY 10 2024.......SUNRISE 6:57 AM PST SUNSET 4:59 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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