687  
CDUS46 KSGX 100924  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
224 AM PDT SUN AUG 10 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 9 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 95 1:59 PM 104 2012 95 0 97  
MINIMUM 65 5:30 AM 56 2010 65 0 65  
AVERAGE 80 80 0 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2023 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.01 -0.01 T  
SINCE JUL 1 0.00 0.06 -0.06 T  
SINCE OCT 1 6.22 11.52 -5.30 17.64  
SINCE JAN 1 6.07 8.42 -2.35 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 15 15 0 16  
MONTH TO DATE 138 135 3 178  
SINCE JUN 1 771 827 -56 983  
SINCE JAN 1 1021 1041 -20 1044    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 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 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 4:00 AM  
LOWEST 33 12:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 95 105 2024  
MINIMUM TEMPERATURE (F) 65 58 2010  
2013  
 
SUNRISE AND SUNSET  
AUGUST 10 2025........SUNRISE 6:09 AM PDT SUNSET 7:42 PM PDT  
AUGUST 11 2025........SUNRISE 6:09 AM PDT SUNSET 7:41 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