268  
CDUS46 KSGX 100955  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
255 AM PDT TUE SEP 10 2024  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 9 2024...  
 
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)  
YESTERDAY  
MAXIMUM 108R 1:30 PM 108 2024 93 15 98  
MINIMUM 78 6:07 AM 55 2000 65 13 72  
AVERAGE 93 79 14 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2013 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.02 -0.02 0.19  
SINCE JUL 1 T 0.10 -0.10 2.11  
SINCE OCT 1 17.64 11.56 6.08 25.59  
SINCE JAN 1 16.29 8.46 7.83 20.35  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 28 14 14 20  
MONTH TO DATE 229 131 98 107  
SINCE SEP 1 229 131 98 107  
SINCE JAN 1 1603 1504 99 1295    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 44 5:00 AM  
LOWEST 14 4:00 PM  
AVERAGE 29  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 100 2015  
2017  
2021  
MINIMUM TEMPERATURE (F) 65 55 2008  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2024.....SUNRISE 6:31 AM PDT SUNSET 7:03 PM PDT  
SEPTEMBER 11 2024.....SUNRISE 6:31 AM PDT SUNSET 7:02 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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