709  
CDUS46 KSGX 230925  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
225 AM PDT SAT AUG 23 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 22 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 103 1:37 PM 104 1998 95 8 91  
MINIMUM 75 6:17 AM 59 2002 65 10 64  
AVERAGE 89 80 9 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00 2004 0.00 0.00 0.00  
2005  
2006  
MONTH TO DATE 0.00 0.02 -0.02 T  
SINCE JUL 1 0.00 0.07 -0.07 T  
SINCE OCT 1 6.22 11.53 -5.31 17.64  
SINCE JAN 1 6.07 8.43 -2.36 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 24 15 9 13  
MONTH TO DATE 336 330 6 406  
SINCE JUN 1 969 1022 -53 1211  
SINCE JAN 1 1219 1236 -17 1272    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 11:00 PM  
LOWEST 17 12:00 PM  
AVERAGE 38  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 95 105 1998  
MINIMUM TEMPERATURE (F) 65 58 2004  
 
SUNRISE AND SUNSET  
AUGUST 23 2025........SUNRISE 6:18 AM PDT SUNSET 7:27 PM PDT  
AUGUST 24 2025........SUNRISE 6:19 AM PDT SUNSET 7:26 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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