AFOS product CLIIAD
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CDUS41 KLWX 050539
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1230 AM EST SUN DEC 5 2004

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 4 2004...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2004

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         49    251 PM  75    1998  50     -1       37       
  MINIMUM         24    716 AM  10    1966  29     -5       24       
  AVERAGE         37                        39     -2       31      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.18 1993   0.10  -0.10     0.14    
  MONTH TO DATE    0.41                      0.40   0.01     0.14    
  SINCE DEC 1      0.41                      0.40   0.01     0.14    
  SINCE JAN 1     36.11                     39.13  -3.02    61.28    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           T    1983   T      0.0      1.0     
  MONTH TO DATE    0.0                      MM     MM        1.0     
  SINCE DEC 1      0.0                      MM     MM        1.0     
  SINCE JUL 1      0.0                       0.9   -0.9      1.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       28                        25      3       34       
  MONTH TO DATE   98                        99     -1      118       
  SINCE DEC 1     98                        99     -1      118       
  SINCE JUL 1    903                      1076   -173      944       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1201                      1075    126      993       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED     6.3                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    88           500 AM                                     
 LOWEST     39           200 PM                                     
 AVERAGE    64                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   49        77      2001                    
 MINIMUM TEMPERATURE (F)   29        12      1966                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  5 2004......SUNRISE   714 AM EST   SUNSET   447 PM EST   
DECEMBER  6 2004......SUNRISE   715 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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