438  
CDUS46 KSGX 290920  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
220 AM PDT SAT APR 29 2023  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR APRIL 28 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 84 1:18 PM 97 2008 78 6 67  
MINIMUM 53 4:57 AM 45 2002 53 0 52  
AVERAGE 69 65 4 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.72 2005 0.02 -0.02 T  
MONTH TO DATE 0.01 0.73 -0.72 0.26  
SINCE JUL 1 23.20 11.29 11.91 9.51  
SINCE OCT 1 22.90 11.11 11.79 9.02  
SINCE JAN 1 17.66 8.01 9.65 1.40  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 5  
MONTH TO DATE 116 100 16 67  
SINCE MAR 1 474 272 202 208  
SINCE JUL 1 1835 1246 589 1125  
 
COOLING  
YESTERDAY 4 3 1 0  
MONTH TO DATE 42 51 -9 77  
SINCE MAR 1 42 74 -32 117  
SINCE JAN 1 42 87 -45 147    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 6:00 AM  
LOWEST 37 1:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 97 2021  
MINIMUM TEMPERATURE (F) 53 42 1999  
 
SUNRISE AND SUNSET  
APRIL 29 2023.........SUNRISE 6:03 AM PDT SUNSET 7:33 PM PDT  
APRIL 30 2023.........SUNRISE 6:02 AM PDT SUNSET 7:33 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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