128  
CDUS46 KSGX 240018  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
518 PM PDT THU OCT 23 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR OCTOBER 23 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 75 3:28 PM 104 2017 81 -6 92  
MINIMUM 55 5:33 AM 50 2004 55 0 60  
AVERAGE 65 68 -3 76  
 
PRECIPITATION (IN)  
TODAY 0.00 0.25 2016 0.01 -0.01 0.00  
MONTH TO DATE 1.08 0.27 0.81 T  
SINCE JUL 1 1.20 0.45 0.75 T  
SINCE OCT 1 1.08 0.27 0.81 T  
SINCE JAN 1 7.27 8.81 -1.54 16.29  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 12 10 2 3  
SINCE SEP 1 12 11 1 3  
SINCE JUL 1 12 11 1 3  
 
COOLING  
TODAY 0 4 -4 11  
MONTH TO DATE 106 146 -40 232  
SINCE SEP 1 506 524 -18 618  
SINCE JAN 1 1895 1897 -2 1992    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 43 2:00 PM  
AVERAGE 65  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 102 2017  
MINIMUM TEMPERATURE (F) 55 50 2004  
 
SUNRISE AND SUNSET  
OCTOBER 23 2025.......SUNRISE 7:02 AM PDT SUNSET 6:06 PM PDT  
OCTOBER 24 2025.......SUNRISE 7:03 AM PDT SUNSET 6:05 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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