000 
CDUS41 KLWX 010544
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1244 AM EST MON JAN 1 2007

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 31 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         48    222 PM  73    1992  42      6       47       
  MINIMUM         30    349 AM   1    1993  23      7       32       
  AVERAGE         39                        33      6       40      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.08          1.90 1975   0.10  -0.02      T      
  MONTH TO DATE    1.74                      3.07  -1.33     2.93    
  SINCE DEC 1      1.74                      3.07  -1.33     2.93    
  SINCE JAN 1     45.98                     41.80   4.18    44.56    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       26                        32     -6       25       
  MONTH TO DATE  708                       884   -176      971       
  SINCE DEC 1    708                       884   -176      971       
  SINCE JUL 1   1569                      1861   -292     1710       
                                                                     
 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    13   HIGHEST WIND DIRECTION    SE (130)      
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SE (130)      
  AVERAGE WIND SPEED     4.0                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96          1200 AM                                     
 LOWEST     58           100 PM                                     
 AVERAGE    77                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        68      2005                    
 MINIMUM TEMPERATURE (F)   23        -6      1968                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY  1 2007.......SUNRISE   729 AM EST   SUNSET   458 PM EST   
JANUARY  2 2007.......SUNRISE   729 AM EST   SUNSET   459 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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