486  
CDUS46 KSGX 271038  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
238 AM PST WED DEC 27 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 26 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 67 2:19 PM 82 2013 66 1 79  
MINIMUM 48 7:07 AM 32 2008 43 5 48  
AVERAGE 58 55 3 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.65 2019 0.07 -0.07 0.00  
MONTH TO DATE 0.83 1.52 -0.69 1.35  
SINCE JUL 1 3.36 2.91 0.45 4.04  
SINCE OCT 1 1.20 2.73 -1.53 3.74  
SINCE JAN 1 21.80 11.27 10.53 5.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 10 -3 1  
MONTH TO DATE 151 251 -100 306  
SINCE DEC 1 151 251 -100 306  
SINCE JUL 1 244 413 -169 532  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE DEC 1 2 0 2 0  
SINCE JAN 1 1695 1967 -272 2301    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 1.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 3:00 AM  
LOWEST 35 3:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 81 2013  
MINIMUM TEMPERATURE (F) 44 32 2003  
 
SUNRISE AND SUNSET  
DECEMBER 27 2023......SUNRISE 6:55 AM PST SUNSET 4:49 PM PST  
DECEMBER 28 2023......SUNRISE 6:55 AM PST SUNSET 4:49 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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