AFOS product CLIIAD
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CDUS41 KLWX 020520
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1220 AM EST SUN DEC 2 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 1 2007...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2007


 WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         43    308 PM  75    2006  51     -8       75       
  MINIMUM         27   1229 AM   4    1967  30     -3       43       
  AVERAGE         35                        40     -5       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.02 1974   0.10  -0.10     0.02    
  MONTH TO DATE    0.00                      0.10  -0.10     0.02    
  SINCE DEC 1      0.00                      0.10  -0.10     0.02    
  SINCE JAN 1     25.03                     38.83 -13.80    44.26    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       T      0.0              
  MONTH TO DATE    0.0                       T      0.0              
  SINCE JUL 1      0.0                       0.9   -0.9              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       30                        24      6        6       
  MONTH TO DATE   30                        24      6        6       
  SINCE DEC 1     30                        24      6        6       
  SINCE JUL 1    759                      1001   -242      867       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1593                      1075    518     1256       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (320)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED     8.6                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    53           100 AM                                     
 LOWEST     24           300 PM                                     
 AVERAGE    39                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   50        75      1970                    
 MINIMUM TEMPERATURE (F)   29         0      1967                    

                                                                      
SUNRISE AND SUNSET                                                   
DECEMBER  2 2007......SUNRISE   710 AM EST   SUNSET   448 PM EST   
DECEMBER  3 2007......SUNRISE   711 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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