508  
CDUS46 KSGX 250938  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
238 AM PDT SAT OCT 25 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR OCTOBER 24 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 84 1:14 PM 102 2017 81 3 89  
MINIMUM 58 6:16 AM 50 2004 55 3 58  
AVERAGE 71 68 3 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.30 2016 0.02 -0.02 0.00  
MONTH TO DATE 1.08 0.29 0.79 T  
SINCE JUL 1 1.20 0.47 0.73 T  
SINCE OCT 1 1.08 0.29 0.79 T  
SINCE JAN 1 7.27 8.83 -1.56 16.29  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 12 11 1 3  
SINCE SEP 1 12 12 0 3  
SINCE JUL 1 12 12 0 3  
 
COOLING  
YESTERDAY 6 4 2 9  
MONTH TO DATE 112 150 -38 241  
SINCE SEP 1 512 528 -16 627  
SINCE JAN 1 1901 1901 0 2001    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 2:00 AM  
LOWEST 29 1:00 PM  
AVERAGE 58  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 99 2017  
MINIMUM TEMPERATURE (F) 55 51 1998  
2012  
 
SUNRISE AND SUNSET  
OCTOBER 25 2025.......SUNRISE 7:04 AM PDT SUNSET 6:04 PM PDT  
OCTOBER 26 2025.......SUNRISE 7:05 AM PDT SUNSET 6:03 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab CA Page
Main Text Page