000 
CDUS41 KLWX 150540
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1240 AM EST THU DEC 15 2005

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 14 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         25   1157 PM  67    2001  46    -21       38       
  MINIMUM         13    220 AM   3    1989  26    -13       27       
  AVERAGE         19                        36    -17       33      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.96 1999   0.10  -0.10     0.00    
  MONTH TO DATE    0.96                      1.40  -0.44     1.69    
  SINCE DEC 1      0.96                      1.40  -0.44     1.69    
  SINCE JAN 1     42.59                     40.13   2.46    37.39    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           3.6  2003   0.1   -0.1      0.0     
  MONTH TO DATE    4.6                       0.5    4.1      0.0     
  SINCE DEC 1      4.6                       0.5    4.1      0.0     
  SINCE JUL 1      4.9                       1.4    3.5      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       46                        28     18       32       
  MONTH TO DATE  482                       369    113      294       
  SINCE DEC 1    482                       369    113      294       
  SINCE JUL 1   1221                      1346   -125     1099       
                                                                     
 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    10   HIGHEST WIND DIRECTION    NE (60)       
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    NE (60)       
  AVERAGE WIND SPEED     3.4                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    73           300 AM                                     
 LOWEST     50           200 PM                                     
 AVERAGE    62                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   46        71      1971                    
 MINIMUM TEMPERATURE (F)   26         5      1989                    
                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 15 2005......SUNRISE   721 AM EST   SUNSET   449 PM EST   
DECEMBER 16 2005......SUNRISE   722 AM EST   SUNSET   449 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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