086  
CDUS46 KSGX 200936  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
236 AM PDT SUN JUL 20 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 19 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 87 2:25 PM 105 2009 94 -7 99  
MINIMUM 63 5:16 AM 59 2001 65 -2 67  
AVERAGE 75 80 -5 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2014 0.00 0.00 0.00  
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  
YESTERDAY 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  
YESTERDAY 10 15 -5 18  
MONTH TO DATE 227 262 -35 305  
SINCE JUN 1 515 512 3 590  
SINCE JAN 1 765 726 39 651    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 4:00 AM  
LOWEST 43 2:00 PM  
AVERAGE 65  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 95 103 2016  
MINIMUM TEMPERATURE (F) 65 58 2001  
 
SUNRISE AND SUNSET  
JULY 20 2025..........SUNRISE 5:54 AM PDT SUNSET 8:00 PM PDT  
JULY 21 2025..........SUNRISE 5:54 AM PDT SUNSET 7:59 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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