814  
CDUS46 KSGX 042323  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
423 PM PDT FRI AUG 04 2023  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 4 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 92 2:38 PM 104 1998 95 -3 93  
MINIMUM 62 5:22 AM 58 2002 65 -3 68  
AVERAGE 77 80 -3 81  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00 MM 0.01 -0.01 0.00  
MONTH TO DATE T 0.01 -0.01 T  
SINCE JUL 1 T 0.06 -0.06 0.03  
SINCE OCT 1 23.68 11.52 12.16 9.05  
SINCE JAN 1 18.44 8.42 10.02 1.43  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 16 4 12 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 12 15 -3 16  
MONTH TO DATE 62 60 2 67  
SINCE JUN 1 660 752 -92 879  
SINCE JAN 1 765 966 -201 1135    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 4:00 AM  
LOWEST 28 2:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 95 100 2019  
MINIMUM TEMPERATURE (F) 65 58 2010  
 
SUNRISE AND SUNSET  
AUGUST 4 2023........SUNRISE 6:04 AM PDT SUNSET 7:49 PM PDT  
AUGUST 5 2023........SUNRISE 6:05 AM PDT SUNSET 7:48 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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