000 
CDUS41 KLWX 070536
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1236 AM EST THU DEC 7 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 6 2006...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2006

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         51    348 PM  79    1998  49      2       37       
  MINIMUM         20    638 AM   9    2002  28     -8       23       
  AVERAGE         36                        39     -3       30      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.75 1983   0.10  -0.10     0.04    
  MONTH TO DATE    0.02                      0.60  -0.58     0.31    
  SINCE DEC 1      0.02                      0.60  -0.58     0.31    
  SINCE JAN 1     44.26                     39.33   4.93    41.94    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       29                        26      3       35       
  MONTH TO DATE  154                       151      3      187       
  SINCE DEC 1    154                       151      3      187       
  SINCE JUL 1   1015                      1128   -113      926       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1256                      1075    181     1373       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     9.4                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           500 AM                                     
 LOWEST     30           300 PM                                     
 AVERAGE    61                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   48        77      1998                    
 MINIMUM TEMPERATURE (F)   28         1      2002                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  7 2006......SUNRISE   715 AM EST   SUNSET   447 PM EST   
DECEMBER  8 2006......SUNRISE   716 AM EST   SUNSET   447 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


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