623  
CDUS46 KSGX 210030  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
530 PM PDT FRI JUN 20 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 20 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 84 3:34 PM 112 2016 88 -4 86  
MINIMUM 63 7:00 AM 55 2010 61 2 59  
AVERAGE 74 74 0 73  
 
PRECIPITATION (IN)  
TODAY 0.00 T 2003 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  
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 9 9 0 8  
MONTH TO DATE 192 141 51 130  
SINCE JUN 1 192 141 51 130  
SINCE JAN 1 442 355 87 191    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 12:00 AM  
LOWEST 37 2:00 PM  
AVERAGE 62  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 106 2008  
MINIMUM TEMPERATURE (F) 61 54 1998  
 
SUNRISE AND SUNSET  
JUNE 20 2025..........SUNRISE 5:39 AM PDT SUNSET 8:05 PM PDT  
JUNE 21 2025..........SUNRISE 5:40 AM PDT SUNSET 8:05 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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