AFOS product CLIIAD
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CDUS41 KLWX 010537
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1231 AM EST SUN JAN 1 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 31 2005...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2005

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         47    356 PM  73    1992  42      5       60       
  MINIMUM         32    421 AM   1    1993  23      9       40       
  AVERAGE         40                        33      7       50      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.90 1975   0.10  -0.10     0.01    
  MONTH TO DATE    2.93                      3.07  -0.14     3.01    
  SINCE DEC 1      2.93                      3.07  -0.14     3.01    
  SINCE JAN 1     44.56                     41.80   2.76    38.71    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           8.5  1970   0.1   -0.1      0.0     
  MONTH TO DATE    5.7                       2.2    3.5       T      
  SINCE DEC 1      5.7                       2.2    3.5       T      
  SINCE JUL 1      6.0                       3.1    2.9       T      
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       25                        32     -7       15       
  MONTH TO DATE  971                       884     87      836       
  SINCE DEC 1    971                       884     87      836       
  SINCE JUL 1   1710                      1861   -151     1641       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1373                      1075    298     1201       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    NW (330)      
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     N (360)      
  AVERAGE WIND SPEED     2.2                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           700 AM                                     
 LOWEST     62           900 PM                                     
 AVERAGE    77                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        68      2005                    
 MINIMUM TEMPERATURE (F)   23        -6      1968                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY  1 2006.......SUNRISE   729 AM EST   SUNSET   458 PM EST   
JANUARY  2 2006.......SUNRISE   729 AM EST   SUNSET   459 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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