801  
CDUS46 KSGX 020017  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
517 PM PDT SUN JUN 01 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 1 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 89 12:53 PM 100 2013 82 7 78  
MINIMUM 64 3:53 PM 51 2011 58 6 58  
AVERAGE 77 70 7 68  
 
PRECIPITATION (IN)  
TODAY T R T 2009 0.00 0.00 0.00  
2009  
2017  
MONTH TO DATE T 0.00 0.00 0.00  
SINCE JUL 1 6.12 11.62 -5.50 19.80  
SINCE OCT 1 6.12 11.44 -5.32 17.64  
SINCE JAN 1 5.97 8.34 -2.37 16.29  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 1134 1288 -154 1312  
 
COOLING  
TODAY 12 5 7 3  
MONTH TO DATE 12 5 7 3  
SINCE JUN 1 12 5 7 3  
SINCE JAN 1 262 219 43 64    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 4:00 AM  
LOWEST 23 3:00 PM  
AVERAGE 48  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 96 2016  
MINIMUM TEMPERATURE (F) 58 50 2011  
 
SUNRISE AND SUNSET  
JUNE 1 2025..........SUNRISE 5:40 AM PDT SUNSET 7:57 PM PDT  
JUNE 2 2025..........SUNRISE 5:40 AM PDT SUNSET 7:58 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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