337  
CDUS46 KSGX 080930  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
230 AM PDT FRI SEP 08 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 7 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 92 3:04 PM 105 2022 94 -2 105  
MINIMUM 63 5:44 AM 55 1999 65 -2 77  
AVERAGE 78 79 -1 91  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00 MM 0.01 -0.01 0.00  
MONTH TO DATE 0.19 0.02 0.17 T  
SINCE JUL 1 2.11 0.10 2.01 0.03  
SINCE OCT 1 25.79 11.56 14.23 9.05  
SINCE JAN 1 20.55 8.46 12.09 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 13 14 -1 26  
MONTH TO DATE 68 103 -35 187  
SINCE SEP 1 68 103 -35 187  
SINCE JAN 1 1256 1476 -220 1809    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 4:00 AM  
LOWEST 23 5:00 PM  
AVERAGE 55  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 94 106 2015  
MINIMUM TEMPERATURE (F) 65 55 2002  
 
SUNRISE AND SUNSET  
SEPTEMBER 8 2023.....SUNRISE 6:29 AM PDT SUNSET 7:07 PM PDT  
SEPTEMBER 9 2023.....SUNRISE 6:29 AM PDT SUNSET 7:06 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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