189  
CDUS46 KSGX 160034  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
534 PM PDT TUE JUL 15 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 15 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 87 2:56 PM 105 2006 94 -7 93  
MINIMUM 61 4:51 AM 60 2011 65 -4 65  
2012  
AVERAGE 74 80 -6 79  
 
PRECIPITATION (IN)  
TODAY 0.00 T 2004 0.01 -0.01 0.00  
2004  
2010  
MONTH TO DATE 0.00 0.02 -0.02 0.00  
SINCE JUL 1 0.00 0.02 -0.02 0.00  
SINCE OCT 1 6.22 11.48 -5.26 17.64  
SINCE JAN 1 6.07 8.38 -2.31 16.29  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 4 -4 2  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 9 14 -5 14  
MONTH TO DATE 182 202 -20 242  
SINCE JUN 1 470 452 18 527  
SINCE JAN 1 720 666 54 588    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 35 3:00 PM  
AVERAGE 63  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 94 106 1998  
MINIMUM TEMPERATURE (F) 65 57 2011  
 
SUNRISE AND SUNSET  
JULY 15 2025..........SUNRISE 5:50 AM PDT SUNSET 8:02 PM PDT  
JULY 16 2025..........SUNRISE 5:51 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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