AFOS product CLIIAD
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CDUS41 KLWX 170529
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
128 AM EDT WED OCT 17 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR OCTOBER 16 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         79    254 PM  85    1989  68     11       63       
  MINIMUM         47    637 AM  30    1986  42      5       36       
  AVERAGE         63                        55      8       50      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.10 2002   0.11  -0.11      T      
  MONTH TO DATE    T                         1.78  -1.78     2.40    
  SINCE SEP 1      1.40                      5.60  -4.20     9.52    
  SINCE JAN 1     19.04                     33.83 -14.79    36.51    
                                                                     
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        2                        10     -8       15       
  MONTH TO DATE   39                       130    -91      126       
  SINCE SEP 1     67                       190   -123      180       
  SINCE JUL 1     67                       195   -128      180       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE   89                        15     74       11       
  SINCE SEP 1    309                       147    162       91       
  SINCE JAN 1   1574                      1072    502     1252       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     S (160)      
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    SE (150)      
  AVERAGE WIND SPEED     3.3                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HAZE                                                               

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    80           400 AM                                     
 LOWEST     38           300 PM                                     
 AVERAGE    59                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        83      1963                    
 MINIMUM TEMPERATURE (F)   42        31      1982                    
                                             1981                    

                                                                      
SUNRISE AND SUNSET                                                   
OCTOBER 17 2007.......SUNRISE   721 AM EDT   SUNSET   629 PM EDT   
OCTOBER 18 2007.......SUNRISE   722 AM EDT   SUNSET   627 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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