000 
CDUS41 KLWX 040541
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1239 AM EST MON DEC 4 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 3 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         43    318 PM  74    1998  50     -7       36       
  MINIMUM         27    754 AM   7    1976  29     -2       21       
  AVERAGE         35                        39     -4       29      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.14 1967   0.10  -0.10     0.05    
  MONTH TO DATE    0.02                      0.30  -0.28     0.05    
  SINCE DEC 1      0.02                      0.30  -0.28     0.05    
  SINCE JAN 1     44.26                     39.03   5.23    41.68    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       30                        25      5       36       
  MONTH TO DATE   58                        74    -16       97       
  SINCE DEC 1     58                        74    -16       97       
  SINCE JUL 1    919                      1051   -132      836       
                                                                     
 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     9   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     2.4                                         
                                                                     
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    92           500 AM                                     
 LOWEST     49           200 PM                                     
 AVERAGE    71                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   50        75      1998                    
 MINIMUM TEMPERATURE (F)   29        10      1966                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  4 2006......SUNRISE   712 AM EST   SUNSET   448 PM EST   
DECEMBER  5 2006......SUNRISE   713 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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