650  
CDUS46 KSGX 050031  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
531 PM PDT WED JUN 04 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 4 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 80 12:05 PM 99 2006 83 -3 84  
MINIMUM 59 4:01 AM 49 1999 58 1 56  
AVERAGE 70 70 0 70  
 
PRECIPITATION (IN)  
TODAY 0.00 T 2013 0.00 0.00 0.00  
MONTH TO DATE 0.10 0.01 0.09 0.00  
SINCE JUL 1 6.22 11.63 -5.41 19.80  
SINCE OCT 1 6.22 11.45 -5.23 17.64  
SINCE JAN 1 6.07 8.35 -2.28 16.29  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 5 6 -1 5  
MONTH TO DATE 30 22 8 9  
SINCE JUN 1 30 22 8 9  
SINCE JAN 1 280 236 44 70    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 3:00 AM  
LOWEST 48 3:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 101 2002  
MINIMUM TEMPERATURE (F) 58 46 1999  
 
SUNRISE AND SUNSET  
JUNE 4 2025..........SUNRISE 5:39 AM PDT SUNSET 7:59 PM PDT  
JUNE 5 2025..........SUNRISE 5:39 AM PDT SUNSET 7:59 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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