290  
CDUS46 KSGX 040921  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
221 AM PDT MON SEP 04 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 3 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 81 2:11 PM 110 2007 94 -13 106  
MINIMUM 64 11:59 PM 56 2000 65 -1 77  
AVERAGE 73 80 -7 92  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.02 2017 0.01 0.00 0.00  
MONTH TO DATE 0.19 0.01 0.18 T  
SINCE JUL 1 2.11 0.09 2.02 0.03  
SINCE OCT 1 25.79 11.55 14.24 9.05  
SINCE JAN 1 20.55 8.45 12.10 1.43  
 
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 8 15 -7 27  
MONTH TO DATE 30 45 -15 80  
SINCE SEP 1 30 45 -15 80  
SINCE JAN 1 1218 1418 -200 1702    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 8.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 47 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 94 109 2022  
MINIMUM TEMPERATURE (F) 65 57 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2023.....SUNRISE 6:26 AM PDT SUNSET 7:12 PM PDT  
SEPTEMBER 5 2023.....SUNRISE 6:27 AM PDT SUNSET 7:11 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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