AFOS product CLIIAD
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CDUS41 KLWX 190525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
124 AM EDT FRI OCT 19 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR OCTOBER 18 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         82R   139 PM  82    1963  67     15       78       
  MINIMUM         59    659 AM  27    1982  41     18       58       
                                      1976                          
  AVERAGE         71                        54     17       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.09 1996   0.11  -0.11     0.00    
  MONTH TO DATE    T                         2.00  -2.00     3.17    
  SINCE SEP 1      1.40                      5.82  -4.42    10.29    
  SINCE JAN 1     19.04                     34.05 -15.01    37.28    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.0    0.0              
  MONTH TO DATE    0.0                       0.0    0.0              
  SINCE JUL 1      0.0                       0.0    0.0              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                        11    -11        0       
  MONTH TO DATE   39                       152   -113      133       
  SINCE SEP 1     67                       212   -145      187       
  SINCE JUL 1     67                       217   -150      187       
                                                                     
 COOLING                                                             
  YESTERDAY        6                         0      6        3       
  MONTH TO DATE   98                        15     83       14       
  SINCE SEP 1    318                       147    171       94       
  SINCE JAN 1   1583                      1072    511     1255       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SE (140)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SE (150)      
  AVERAGE WIND SPEED     6.9                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    90           400 AM                                     
 LOWEST     51           100 PM                                     
 AVERAGE    71                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        83      1991                    
                                             1963                    
 MINIMUM TEMPERATURE (F)   41        25      1976                    

                                                                      
SUNRISE AND SUNSET                                                   
OCTOBER 19 2007.......SUNRISE   723 AM EDT   SUNSET   626 PM EDT   
OCTOBER 20 2007.......SUNRISE   724 AM EDT   SUNSET   625 PM EDT   

                                                                     
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

 


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