162  
CDUS46 KSGX 290930  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
230 AM PDT SUN JUN 29 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 28 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 97 3:27 PM 103 2015 91 6 90  
MINIMUM 61 5:15 AM 56 2005 63 -2 62  
AVERAGE 79 76 3 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2020 0.00 0.00 0.00  
MONTH TO DATE 0.10 0.02 0.08 T  
SINCE JUL 1 6.22 11.64 -5.42 19.80  
SINCE OCT 1 6.22 11.46 -5.24 17.64  
SINCE JAN 1 6.07 8.36 -2.29 16.29  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE JUN 1 0 0 0 2  
SINCE JUL 1 1134 1288 -154 1314  
 
COOLING  
YESTERDAY 14 12 2 11  
MONTH TO DATE 258 226 32 255  
SINCE JUN 1 258 226 32 255  
SINCE JAN 1 508 440 68 316    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 5.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 13 3:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 105 2013  
MINIMUM TEMPERATURE (F) 63 57 2023  
 
SUNRISE AND SUNSET  
JUNE 29 2025..........SUNRISE 5:42 AM PDT SUNSET 8:06 PM PDT  
JUNE 30 2025..........SUNRISE 5:43 AM PDT SUNSET 8:06 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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