000 
CDUS41 KLWX 130533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON                        
1229 AM EST FRI DEC 13 2002

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 12 2002...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2002

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         45    128 PM  72    1979  47     -2       50       
  MINIMUM         32    239 AM   9    1988  27      5       35       
  AVERAGE         39                        37      2       43      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.95 1964   0.10  -0.10     0.04    
  MONTH TO DATE    1.66                      1.20   0.46     0.97    
  SINCE DEC 1      1.66                      1.20   0.46     0.97    
  SINCE JAN 1     36.23                     39.93  -3.70    36.61    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          10.6  1982   0.1   -0.1      0.0     
  MONTH TO DATE    6.2                       0.3    5.9      0.0     
  SINCE DEC 1      6.2                       0.3    5.9      0.0     
  SINCE JUL 1      6.2                       1.2    5.0      0.0     
  SNOW DEPTH       2                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       26                        28     -2       22       
  MONTH TO DATE  454                       313    141      203       
  SINCE DEC 1    454                       313    141      203       
  SINCE JUL 1   1436                      1290    146     1006       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1345                      1075    270     1032       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NW (320)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED     4.9                                         
                                                                     
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    96          1200 AM                                     
 LOWEST     62           100 PM                                     
 AVERAGE    79                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   47        71      1984                    
 MINIMUM TEMPERATURE (F)   26         7      1988                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 13 2002......SUNRISE   720 AM EST   SUNSET   448 PM EST   
DECEMBER 14 2002......SUNRISE   721 AM EST   SUNSET   448 PM EST   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.