518  
CDUS46 KSGX 210040  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
540 PM PDT FRI SEP 20 2024  
   
...............................  
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 20 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 12:16 PM 104 2015 90 -12 78  
MINIMUM 60 12:44 AM 53 1999 63 -3 62  
AVERAGE 69 77 -8 70  
 
PRECIPITATION (IN)  
TODAY T 0.29 2005 0.00 0.00 0.02  
MONTH TO DATE T 0.05 -0.05 0.24  
SINCE JUL 1 T 0.13 -0.13 2.16  
SINCE OCT 1 17.64 11.59 6.05 25.64  
SINCE JAN 1 16.29 8.49 7.80 20.40  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 4 12 -8 5  
MONTH TO DATE 297 274 23 205  
SINCE SEP 1 297 274 23 205  
SINCE JAN 1 1671 1647 24 1393    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 12:00 AM  
LOWEST 43 12:00 PM  
AVERAGE 65  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 105 2003  
MINIMUM TEMPERATURE (F) 63 53 2007  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2024.....SUNRISE 6:38 AM PDT SUNSET 6:49 PM PDT  
SEPTEMBER 21 2024.....SUNRISE 6:38 AM PDT SUNSET 6:48 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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