405  
CDUS46 KSGX 291027  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
227 AM PST MON JAN 29 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 28 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 78 2:20 PM 84 2018 68 10 62  
MINIMUM 52 7:04 AM 36 1999 45 7 37  
AVERAGE 65 56 9 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.42 2008 0.07 -0.07 0.00  
MONTH TO DATE 0.78 2.32 -1.54 5.82  
SINCE JUL 1 4.29 5.60 -1.31 11.36  
SINCE OCT 1 2.13 5.42 -3.29 11.06  
SINCE JAN 1 0.78 2.32 -1.54 5.82  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 9 -9 15  
MONTH TO DATE 300 256 44 369  
SINCE DEC 1 491 560 -69 720  
SINCE JUL 1 584 722 -138 946  
 
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 1 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 3.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 50 7:00 AM  
LOWEST 18 2:00 PM  
AVERAGE 34  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 86 2018  
MINIMUM TEMPERATURE (F) 45 34 2002  
 
SUNRISE AND SUNSET  
JANUARY 29 2024.......SUNRISE 6:50 AM PST SUNSET 5:18 PM PST  
JANUARY 30 2024.......SUNRISE 6:49 AM PST SUNSET 5:19 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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