217  
CDUS46 KSGX 202321  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
421 PM PDT MON MAY 20 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 20 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 71 2:59 PM 98 2000 80 -9 85  
MINIMUM 55 6:41 AM 51 2011 56 -1 60  
AVERAGE 63 68 -5 73  
 
PRECIPITATION (IN)  
TODAY T 0.20 2002 0.01 -0.01 T  
MONTH TO DATE 0.15 0.24 -0.09 0.78  
SINCE JUL 1 19.80 11.56 8.24 23.78  
SINCE OCT 1 17.64 11.38 6.26 23.48  
SINCE JAN 1 16.29 8.28 8.01 18.24  
 
DEGREE DAYS  
HEATING  
TODAY 2 1 1 0  
MONTH TO DATE 24 29 -5 62  
SINCE MAR 1 414 306 108 536  
SINCE JUL 1 1302 1280 22 1897  
 
COOLING  
TODAY 0 4 -4 8  
MONTH TO DATE 20 70 -50 44  
SINCE MAR 1 45 150 -105 93  
SINCE JAN 1 45 163 -118 93    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 6:00 AM  
LOWEST 44 3:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 101 2000  
MINIMUM TEMPERATURE (F) 56 47 2002  
 
SUNRISE AND SUNSET  
MAY 20 2024...........SUNRISE 5:45 AM PDT SUNSET 7:49 PM PDT  
MAY 21 2024...........SUNRISE 5:45 AM PDT SUNSET 7:50 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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