781  
CDUS46 KSGX 240931  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
231 AM PDT SUN SEP 24 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 23 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 83 3:45 PM 103 2009 89 -6 96  
MINIMUM 60 6:13 AM 54 2010 63 -3 65  
2017  
AVERAGE 72 76 -4 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00 2004 0.01 -0.01 0.00  
2005  
2006  
MONTH TO DATE 0.24 0.07 0.17 0.27  
SINCE JUL 1 2.16 0.15 2.01 0.30  
SINCE OCT 1 25.84 11.61 14.23 9.32  
SINCE JAN 1 20.60 8.51 12.09 1.70  
 
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 7 11 -4 16  
MONTH TO DATE 218 308 -90 378  
SINCE SEP 1 218 308 -90 378  
SINCE JAN 1 1406 1681 -275 2000    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 4.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 5:00 AM  
LOWEST 28 1:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 103 2001  
2019  
MINIMUM TEMPERATURE (F) 63 53 1998  
2017  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2023.....SUNRISE 6:40 AM PDT SUNSET 6:45 PM PDT  
SEPTEMBER 25 2023.....SUNRISE 6:41 AM PDT SUNSET 6:43 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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