000 
CDUS41 KLWX 170539
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1238 AM EST WED JAN 17 2007

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 16 2007...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2006

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         62    117 AM  65    1974  41     21       45       
  MINIMUM         30   1159 PM  -4    1964  22      8       28       
  AVERAGE         46                        31     15       37      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.64 1991   0.10  -0.10     0.00    
  MONTH TO DATE    1.87                      1.60   0.27     1.06    
  SINCE DEC 1      3.61                      4.67  -1.06     3.99    
  SINCE JAN 1      1.87                      1.60   0.27     1.06    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       19                        33    -14       28       
  MONTH TO DATE  280                       525   -245      381       
  SINCE DEC 1    988                      1409   -421     1352       
  SINCE JUL 1   1849                      2386   -537     2091       
                                                                     
 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    29   HIGHEST WIND DIRECTION    NW (330)      
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED    14.4                                         
                                                                     
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    78          1200 AM                                     
 LOWEST     44           600 PM                                     
 AVERAGE    61                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   41        70      1990                    
 MINIMUM TEMPERATURE (F)   22        -7      1982                    
                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 17 2007.......SUNRISE   726 AM EST   SUNSET   514 PM EST   
JANUARY 18 2007.......SUNRISE   726 AM EST   SUNSET   515 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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