AFOS product CLIIAD
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CDUS41 KLWX 110534
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1232 AM EST THU DEC 11 2003

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 10 2003...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2003

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58   1213 PM  70    1966  47     11       33       
  MINIMUM         27    637 AM   4    1989  27      0       14       
  AVERAGE         43                        37      6       24      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.76          2.26 1992   0.10   0.66     0.00    
  MONTH TO DATE    1.95                      1.00   0.95     0.57    
  SINCE DEC 1      1.95                      1.00   0.95     0.57    
  SINCE JAN 1     63.09                     39.73  23.36    35.14    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           2.6  1992   0.1   -0.1      0.0     
  MONTH TO DATE    7.8                       0.1    7.7      6.2     
  SINCE DEC 1      7.8                       0.1    7.7      6.2     
  SINCE JUL 1      7.8                       1.0    6.8      6.2     
  SNOW DEPTH       3                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       22                        27     -5       41       
  MONTH TO DATE  310                       258     52      393       
  SINCE DEC 1    310                       258     52      393       
  SINCE JUL 1   1136                      1235    -99     1375       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    993                      1075    -82     1345       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    SE (140)      
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    SE (120)      
  AVERAGE WIND SPEED     4.9                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1200 AM                                     
 LOWEST     85          1000 AM                                     
 AVERAGE    93                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   47        71      1979                    
 MINIMUM TEMPERATURE (F)   27         3      1968                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 11 2003......SUNRISE   718 AM EST   SUNSET   448 PM EST   
DECEMBER 12 2003......SUNRISE   719 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.                                          


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