843  
CDUS46 KSGX 162330  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
430 PM PDT SAT SEP 16 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 16 2023...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 74 2:43 PM 107 2000 92 -18 85  
2014  
MINIMUM 65 8:56 AM 56 1999 64 1 62  
AVERAGE 70 78 -8 74  
 
PRECIPITATION (IN)  
TODAY 0.00 0.03 2002 0.00 0.00 0.00  
MONTH TO DATE 0.22 0.04 0.18 0.27  
SINCE JUL 1 2.14 0.12 2.02 0.30  
SINCE OCT 1 25.82 11.58 14.24 9.32  
SINCE JAN 1 20.58 8.48 12.10 1.70  
 
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 5 13 -8 9  
MONTH TO DATE 185 225 -40 314  
SINCE SEP 1 185 225 -40 314  
SINCE JAN 1 1373 1598 -225 1936    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 9:00 AM  
LOWEST 66 2:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 102 2000  
2020  
MINIMUM TEMPERATURE (F) 64 55 2010  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2023.....SUNRISE 6:34 AM PDT SUNSET 6:56 PM PDT  
SEPTEMBER 17 2023.....SUNRISE 6:35 AM PDT SUNSET 6:54 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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