000 
CDUS46 KSGX 180853
CLIONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA                               
152 AM PDT WED MAY 18 2005

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

...THE ONTARIO AIRPORT CLIMATE SUMMARY FOR MAY 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         75    234 PM 102    1970  80     -5       76       
  MINIMUM         55    327 AM  42    1981  53      2       58       
  AVERAGE         65                        67     -2       67      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.02 1962   0.01  -0.01     0.00    
  MONTH TO DATE    0.45                      0.09   0.36     0.00    
  SINCE JUL 1     27.59                     14.66  12.93     7.25    
  SINCE JAN 1     18.73                     11.13   7.60     5.85    
                                                                     
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        0                         2     -2        0       
  MONTH TO DATE   27                        49    -22        0       
  SINCE MAR 1    323                       401    -78      157       
  SINCE JUL 1   1536                      1325    211     1377       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         4     -4        2       
  MONTH TO DATE   32                        57    -25      144       
  SINCE MAR 1     51                       162   -111      293       
  SINCE JAN 1     52                       184   -132      294       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     W (250)      
  AVERAGE WIND SPEED     7.0                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           300 AM                                     
 LOWEST     44           100 PM                                     
 AVERAGE    65                                                       
..........................................................
                                                                     
THE ONTARIO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80       100      1970                    
 MINIMUM TEMPERATURE (F)   53        44      1977                    
                                                                     
SUNRISE AND SUNSET                                                   
MAY 18 2005...........SUNRISE   547 AM PDT   SUNSET   747 PM PDT   
MAY 19 2005...........SUNRISE   546 AM PDT   SUNSET   748 PM PDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


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