575  
CDUS46 KSGX 262321  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
421 PM PDT TUE SEP 26 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 26 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 88 2:43 PM 107 2010 88 0 99  
MINIMUM 60 3:04 AM 54 2005 62 -2 70  
AVERAGE 74 75 -1 85  
 
PRECIPITATION (IN)  
TODAY 0.00 T 2019 0.00 0.00 0.00  
2021  
MONTH TO DATE 0.24 0.08 0.16 0.27  
SINCE JUL 1 2.16 0.16 2.00 0.30  
SINCE OCT 1 25.84 11.62 14.22 9.32  
SINCE JAN 1 20.60 8.52 12.08 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 9 10 -1 20  
MONTH TO DATE 243 339 -96 432  
SINCE SEP 1 243 339 -96 432  
SINCE JAN 1 1431 1712 -281 2054    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 2.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 3:00 AM  
LOWEST 25 1:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 112 2010  
MINIMUM TEMPERATURE (F) 62 51 2013  
 
SUNRISE AND SUNSET  
SEPTEMBER 26 2023.....SUNRISE 6:41 AM PDT SUNSET 6:42 PM PDT  
SEPTEMBER 27 2023.....SUNRISE 6:42 AM PDT SUNSET 6:40 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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