AFOS product CLIIAD
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CDUS41 KLWX 280517
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1217 AM EST WED NOV 28 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR NOVEMBER 27 2007...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2007


 WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         60   1235 AM  68    1976  52      8       60       
  MINIMUM         39    744 PM  11    1974  31      8       33       
  AVERAGE         50                        42      8       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.98          2.59 1993   0.11   0.87     0.00    
  MONTH TO DATE    2.47                      2.98  -0.51     5.31    
  SINCE SEP 1      7.39                     10.17  -2.78    17.25    
  SINCE JAN 1     25.03                     38.40 -13.37    44.24    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                         0.1   MM                
  MONTH TO DATE    0.0                       0.5   -0.5              
  SINCE JUL 1      0.0                       0.6   -0.6              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       15                        23     -8       18       
  MONTH TO DATE  489                       518    -29      452       
  SINCE SEP 1    659                       901   -242      828       
  SINCE JUL 1    659                       906   -247      828       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        1       
  SINCE SEP 1    328                       147    181       95       
  SINCE JAN 1   1593                      1072    521     1256       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED    10.5                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     41           200 PM                                     
 AVERAGE    67                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   52        71      1998                    
                                             1990                    
 MINIMUM TEMPERATURE (F)   31        19      1996                    

                                                                      
SUNRISE AND SUNSET                                                   
NOVEMBER 28 2007......SUNRISE   706 AM EST   SUNSET   449 PM EST   
NOVEMBER 29 2007......SUNRISE   707 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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