400  
CDUS46 KSGX 280019  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
419 PM PST WED DEC 27 2023  
   
...............................  
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 27 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 67 3:00 PM 81 2013 67 0 65  
MINIMUM 47 3:44 AM 32 2003 44 3 50  
AVERAGE 57 55 2 58  
 
PRECIPITATION (IN)  
TODAY 0.00 1.05 2021 0.08 -0.08 0.18  
MONTH TO DATE 0.83 1.60 -0.77 1.53  
SINCE JUL 1 3.36 2.99 0.37 4.22  
SINCE OCT 1 1.20 2.81 -1.61 3.92  
SINCE JAN 1 21.80 11.35 10.45 5.62  
 
DEGREE DAYS  
HEATING  
TODAY 8 10 -2 7  
MONTH TO DATE 159 261 -102 313  
SINCE DEC 1 159 261 -102 313  
SINCE JUL 1 252 423 -171 539  
 
COOLING  
TODAY 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 1 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 2.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 3:00 AM  
LOWEST 34 1:00 PM  
AVERAGE 53  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 84 2017  
MINIMUM TEMPERATURE (F) 44 31 2003  
2015  
 
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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