783  
CDUS46 KSGX 110919  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
219 AM PDT WED JUN 11 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 10 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 91 2:36 PM 107 2019 85 6 84  
MINIMUM 60 3:15 AM 54 2007 59 1 57  
AVERAGE 76 72 4 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00 MM 0.00 0.00 0.00  
MONTH TO DATE 0.10 0.02 0.08 T  
SINCE JUL 1 6.22 11.64 -5.42 19.80  
SINCE OCT 1 6.22 11.46 -5.24 17.64  
SINCE JAN 1 6.07 8.36 -2.29 16.29  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE JUN 1 0 0 0 2  
SINCE JUL 1 1134 1288 -154 1314  
 
COOLING  
YESTERDAY 11 7 4 6  
MONTH TO DATE 69 60 9 52  
SINCE JUN 1 69 60 9 52  
SINCE JAN 1 319 274 45 113    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 AM  
LOWEST 34 4:00 PM  
AVERAGE 64  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 109 2019  
MINIMUM TEMPERATURE (F) 59 53 1999  
 
SUNRISE AND SUNSET  
JUNE 11 2025..........SUNRISE 5:39 AM PDT SUNSET 8:02 PM PDT  
JUNE 12 2025..........SUNRISE 5:39 AM PDT SUNSET 8:02 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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