000 
CDUS41 KLWX 210533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1232 AM EST FRI JAN 21 2005

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 20 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         37    224 PM  57    1991  41     -4       29       
  MINIMUM         25    147 AM  -7    1985  21      4       20       
  AVERAGE         31                        31      0       25      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.01 1979   0.10  -0.10     0.00    
  MONTH TO DATE    2.43                      2.00   0.43     0.85    
  SINCE DEC 1      5.44                      5.07   0.37     5.42    
  SINCE JAN 1      2.43                      2.00   0.43     0.85    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        T             4.5  1975   0.3   -0.3      0.0     
  MONTH TO DATE    1.0                       4.8   -3.8      0.4     
  SINCE DEC 1      1.0                       7.0   -6.0     11.8     
  SINCE JUL 1      1.0                       7.9   -6.9     11.8     
  SNOW DEPTH       1                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       34                        34      0       40       
  MONTH TO DATE  490                       661   -171      661       
  SINCE DEC 1   1326                      1545   -219     1552       
  SINCE JUL 1   2131                      2522   -391     2378       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     5.8                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT SNOW                                                         
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    81           600 AM                                     
 LOWEST     43          1100 PM                                     
 AVERAGE    62                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   41        59      1990                    
 MINIMUM TEMPERATURE (F)   21       -16      1984                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 21 2005.......SUNRISE   724 AM EST   SUNSET   519 PM EST   
JANUARY 22 2005.......SUNRISE   724 AM EST   SUNSET   520 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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