760  
CDUS46 KSGX 180048  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
548 PM PDT WED JUN 17 2026  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 17 2026
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 2:02 PM 101 2021 87 -2 97  
MINIMUM 59 5:19 AM 55 2010 60 -1 65  
AVERAGE 72 74 -2 81  
 
PRECIPITATION (IN)  
TODAY 0.00 T 2011 0.00 0.00 0.00  
2020  
2021  
MONTH TO DATE 0.00 0.02 -0.02 0.10  
SINCE JUL 1 12.20 11.64 0.56 6.22  
SINCE OCT 1 12.08 11.46 0.62 6.22  
SINCE JAN 1 5.06 8.36 -3.30 6.07  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 638 1288 -650 1134  
 
COOLING  
TODAY 7 8 -1 16  
MONTH TO DATE 171 114 57 157  
SINCE JUN 1 171 114 57 157  
SINCE JAN 1 601 328 273 407    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 33 1:00 PM  
AVERAGE 63  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 103 2008  
MINIMUM TEMPERATURE (F) 60 56 2005  
 
SUNRISE AND SUNSET  
JUNE 17 2026..........SUNRISE 5:39 AM PDT SUNSET 8:04 PM PDT  
JUNE 18 2026..........SUNRISE 5:39 AM PDT SUNSET 8:04 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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