648  
CDUS46 KSGX 160919  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
119 AM PST TUE JAN 16 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 15 2024
 
 
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)  
YESTERDAY  
MAXIMUM 67 3:42 PM 88 2021 68 -1 55  
MINIMUM 39 5:23 AM 31 2013 45 -6 47  
AVERAGE 53 56 -3 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.78 2023 0.08 -0.08 0.78  
MONTH TO DATE 0.44 1.32 -0.88 5.20  
SINCE JUL 1 3.95 4.60 -0.65 10.74  
SINCE OCT 1 1.79 4.42 -2.63 10.44  
SINCE JAN 1 0.44 1.32 -0.88 5.20  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 9 3 14  
MONTH TO DATE 214 139 75 181  
SINCE DEC 1 405 443 -38 532  
SINCE JUL 1 498 605 -107 758  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 2 2 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 3.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 11:00 PM  
LOWEST 37 2:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 88 2021  
MINIMUM TEMPERATURE (F) 45 34 2006  
2007  
 
SUNRISE AND SUNSET  
JANUARY 16 2024.......SUNRISE 6:56 AM PST SUNSET 5:05 PM PST  
JANUARY 17 2024.......SUNRISE 6:55 AM PST SUNSET 5:06 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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