000 
CDUS46 KSGX 180907
CLIONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA                               
106 AM PST SUN DEC 18 2005

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

...THE ONTARIO AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 2005...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1951 TO 2005

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         57    258 PM  86    1958  68    -11       77       
  MINIMUM         49    741 AM  31    1982  44      5       48       
  AVERAGE         53                        56     -3       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.42 1978   0.05  -0.05     0.00    
  MONTH TO DATE    0.07                      0.73  -0.66     0.41    
  SINCE JUL 1      2.12                      2.63  -0.51     5.88    
  SINCE JAN 1     20.86                     13.87   6.99    11.73    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JAN 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                         9      3        2       
  MONTH TO DATE  163                       145     18      162       
  SINCE DEC 1    163                       145     18      162       
  SINCE JUL 1    287                       330    -43      510       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         7     -7        4       
  SINCE DEC 1      0                         7     -7        4       
  SINCE JAN 1   1553                      1901   -348     1751       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     3.7                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           500 AM                                     
 LOWEST     57           200 PM                                     
 AVERAGE    72                                                       
..........................................................
                                                                     
THE ONTARIO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        81      2003                    
                                             1979                    
 MINIMUM TEMPERATURE (F)   44        35      1955                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 18 2005......SUNRISE   651 AM PST   SUNSET   444 PM PST   
DECEMBER 19 2005......SUNRISE   651 AM PST   SUNSET   444 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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