000 
CDUS41 KLWX 280541
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1241 AM EST SUN JAN 28 2007

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 27 2007...

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         59    425 PM  71    1974  42     17       48       
  MINIMUM         19    738 AM  -9    1987  22     -3       22       
  AVERAGE         39                        32      7       35      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.95 1976   0.09  -0.09     0.00    
  MONTH TO DATE    2.11                      2.69  -0.58     2.32    
  SINCE DEC 1      3.85                      5.76  -1.91     5.25    
  SINCE JAN 1      2.11                      2.69  -0.58     2.32    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       26                        33     -7       30       
  MONTH TO DATE  654                       893   -239      648       
  SINCE DEC 1   1362                      1777   -415     1619       
  SINCE JUL 1   2223                      2754   -531     2358       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     2.6                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           800 AM                                     
 LOWEST     30           400 PM                                     
 AVERAGE    57                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        68      2002                    
 MINIMUM TEMPERATURE (F)   22       -17      1987                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 28 2007.......SUNRISE   720 AM EST   SUNSET   526 PM EST   
JANUARY 29 2007.......SUNRISE   719 AM EST   SUNSET   527 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


$$