000 
CDUS41 KLWX 010537
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1236 AM EST THU FEB 1 2007

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 31 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         33    429 PM  65    1993  42     -9       51       
  MINIMUM         20    800 AM  -7    1965  22     -2       39       
  AVERAGE         27                        32     -5       45      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.68 1985   0.09  -0.09     0.03    
  MONTH TO DATE    2.11                      3.05  -0.94     2.40    
  SINCE DEC 1      3.85                      6.12  -2.27     5.33    
  SINCE JAN 1      2.11                      3.05  -0.94     2.40    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       38                        33      5       20       
  MONTH TO DATE  795                      1025   -230      715       
  SINCE DEC 1   1503                      1909   -406     1686       
  SINCE JUL 1   2364                      2886   -522     2425       
                                                                     
 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    25   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED     8.8                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    68          1100 PM                                     
 LOWEST     28           400 PM                                     
 AVERAGE    48                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        75      2002                    
 MINIMUM TEMPERATURE (F)   22         2      1965                    
                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY  1 2007......SUNRISE   716 AM EST   SUNSET   531 PM EST   
FEBRUARY  2 2007......SUNRISE   715 AM EST   SUNSET   532 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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