152  
CDUS46 KSGX 040024  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
524 PM PDT TUE JUN 03 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 3 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 1:18 PM 102 2016 83 -3 76  
2020  
MINIMUM 60 3:36 AM 50 1999 58 2 56  
AVERAGE 70 70 0 66  
 
PRECIPITATION (IN)  
TODAY 0.10R 0.01 2009 0.00 0.10 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 1  
MONTH TO DATE 25 16 9 4  
SINCE JUN 1 25 16 9 4  
SINCE JAN 1 275 230 45 65    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1:00 AM  
LOWEST 48 12:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 99 2006  
MINIMUM TEMPERATURE (F) 58 49 1999  
 
SUNRISE AND SUNSET  
JUNE 3 2025..........SUNRISE 5:40 AM PDT SUNSET 7:58 PM PDT  
JUNE 4 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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