AFOS product CLIONT
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CDUS46 KSGX 121030
CLIONT

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN DIEGO, CA
230 AM PST FRI DEC 12 2025

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 11 2025...

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)                                                          
 YESTERDAY                                                           
  MAXIMUM         84R  2:35 PM  83    2004  67     17       73        
  MINIMUM         52   5:36 AM  34    1998  44      8       42        
                                      2011                           
  AVERAGE         68                        55     13       58     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.07 2022   0.06  -0.06     0.00     
  MONTH TO DATE    0.00                      0.60  -0.60     0.00     
  SINCE JUL 1      5.21                      1.99   3.22     0.15     
  SINCE OCT 1      5.09                      1.81   3.28     0.15     
  SINCE JAN 1     11.28                     10.35   0.93    16.44     

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                        10    -10        7        
  MONTH TO DATE   45                       101    -56       48        
  SINCE DEC 1     45                       101    -56       48        
  SINCE JUL 1    156                       263   -107      199        

 COOLING                                                              
  YESTERDAY        3                         0      3        0        
  MONTH TO DATE    7                         0      7        0        
  SINCE DEC 1      7                         0      7        0        
  SINCE JAN 1   2012                      1967     45     2027        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   0   RESULTANT WIND DIRECTION  NW (310)       
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     W (290)       
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    SW (240)       
  AVERAGE WIND SPEED     2.7                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    69          11:00 PM                                      
 LOWEST     19           1:00 PM                                      
 AVERAGE    44                                                        

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


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   67        84      2010                      
 MINIMUM TEMPERATURE (F)   43        36      2007                      


SUNRISE AND SUNSET                                                    
DECEMBER 12 2025......SUNRISE   6:47 AM PST   SUNSET   4:42 PM PST     
DECEMBER 13 2025......SUNRISE   6:47 AM PST   SUNSET   4:42 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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