AFOS product CLIONT
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CDUS46 KSGX 100031
CLIONT

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN DIEGO, CA
431 PM PST TUE DEC 09 2025

...................................

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 9 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         81   3:15 PM  84    2017  67     14       75        
  MINIMUM         49   3:02 AM  35    2013  44      5       44        
  AVERAGE         65                        55     10       60     

PRECIPITATION (IN)                                                    
  TODAY            0.00          0.29 2006   0.06  -0.06     0.00     
  MONTH TO DATE    0.00                      0.48  -0.48     0.00     
  SINCE JUL 1      5.21                      1.87   3.34     0.15     
  SINCE OCT 1      5.09                      1.69   3.40     0.15     
  SINCE JAN 1     11.28                     10.23   1.05    16.44     

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            0                        10    -10        5        
  MONTH TO DATE   45                        81    -36       37        
  SINCE DEC 1     45                        81    -36       37        
  SINCE JUL 1    156                       243    -87      188        

 COOLING                                                              
  TODAY            0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1   2005                      1967     38     2027        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   N (340)       
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     N (20)        
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    SW (240)       
  AVERAGE WIND SPEED     2.5                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.0                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED TODAY.                             
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    54           2:00 AM                                      
 LOWEST     14           3:00 PM                                      
 AVERAGE    34                                                        

..........................................................


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   67        85      2017                      
 MINIMUM TEMPERATURE (F)   44        31      2013                      


SUNRISE AND SUNSET                                                    
DECEMBER  9 2025......SUNRISE   6:45 AM PST   SUNSET   4:41 PM PST     
DECEMBER 10 2025......SUNRISE   6:45 AM PST   SUNSET   4:41 PM PST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$