630  
CDUS46 KSGX 310019  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
519 PM PDT WED JUL 30 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 30 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 92 2:08 PM 102 2020 95 -3 93  
2021  
MINIMUM 64 5:28 AM 60 2010 65 -1 64  
2013  
AVERAGE 78 80 -2 79  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00 MM 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.05 -0.05 0.00  
SINCE JUL 1 0.00 0.05 -0.05 0.00  
SINCE OCT 1 6.22 11.51 -5.29 17.64  
SINCE JAN 1 6.07 8.41 -2.34 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 13 15 -2 14  
MONTH TO DATE 331 427 -96 506  
SINCE JUN 1 619 677 -58 791  
SINCE JAN 1 869 891 -22 852    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 6:00 AM  
LOWEST 29 12:00 PM  
AVERAGE 53  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 95 105 2020  
MINIMUM TEMPERATURE (F) 65 59 2010  
2013  
 
SUNRISE AND SUNSET  
JULY 30 2025..........SUNRISE 6:01 AM PDT SUNSET 7:53 PM PDT  
JULY 31 2025..........SUNRISE 6:01 AM PDT SUNSET 7:52 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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