131  
CDUS46 KSGX 190027  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
527 PM PDT MON SEP 18 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 18 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 80 2:54 PM 106 2016 91 -11 81  
MINIMUM 65 6:30 AM 55 2010 64 1 62  
AVERAGE 73 77 -4 72  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00 MM 0.01 -0.01 0.00  
MONTH TO DATE 0.22 0.05 0.17 0.27  
SINCE JUL 1 2.14 0.13 2.01 0.30  
SINCE OCT 1 25.82 11.59 14.23 9.32  
SINCE JAN 1 20.58 8.49 12.09 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 8 12 -4 7  
MONTH TO DATE 197 250 -53 327  
SINCE SEP 1 197 250 -53 327  
SINCE JAN 1 1385 1623 -238 1949    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 4:00 AM  
LOWEST 44 2:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 100 2015  
MINIMUM TEMPERATURE (F) 64 56 2005  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2023.....SUNRISE 6:36 AM PDT SUNSET 6:53 PM PDT  
SEPTEMBER 19 2023.....SUNRISE 6:36 AM PDT SUNSET 6:52 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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