914  
CDUS46 KSGX 090933  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
233 AM PDT SAT SEP 09 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 8 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 98 2:57 PM 106 2015 94 4 100  
MINIMUM 69 5:40 AM 55 2002 65 4 80  
AVERAGE 84 79 5 90  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2010 0.00 0.00 0.01  
MONTH TO DATE 0.19 0.02 0.17 0.01  
SINCE JUL 1 2.11 0.10 2.01 0.04  
SINCE OCT 1 25.79 11.56 14.23 9.06  
SINCE JAN 1 20.55 8.46 12.09 1.44  
 
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 19 14 5 25  
MONTH TO DATE 87 117 -30 212  
SINCE SEP 1 87 117 -30 212  
SINCE JAN 1 1275 1490 -215 1834    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 4:00 AM  
LOWEST 20 12:00 PM  
AVERAGE 49  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 105 2015  
MINIMUM TEMPERATURE (F) 65 55 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 9 2023.....SUNRISE 6:29 AM PDT SUNSET 7:06 PM PDT  
SEPTEMBER 10 2023.....SUNRISE 6:30 AM PDT SUNSET 7:04 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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