AFOS product CLIIAD
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CDUS41 KLWX 040519
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
118 AM EDT THU OCT 4 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR OCTOBER 3 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         86R   250 PM  86    2002  73     13       82       
  MINIMUM         63    437 AM  30    2003  48     15       58       
                                      1974                          
  AVERAGE         75                        60     15       70      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.86 1987   0.11  -0.11      T      
  MONTH TO DATE    T                         0.35  -0.35     0.12    
  SINCE SEP 1      1.40                      4.17  -2.77     7.24    
  SINCE JAN 1     19.04                     32.40 -13.36    34.23    
                                                                     
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                         6     -6        0       
  MONTH TO DATE    1                        18    -17       10       
  SINCE SEP 1     29                        78    -49       64       
  SINCE JUL 1     29                        83    -54       64       
                                                                     
 COOLING                                                             
  YESTERDAY       10                         2      8        5       
  MONTH TO DATE   16                         6     10        5       
  SINCE SEP 1    236                       138     98       85       
  SINCE JAN 1   1501                      1063    438     1246       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM            
  AVERAGE WIND SPEED     4.0                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87          1200 AM                                     
 LOWEST     43           200 PM                                     
 AVERAGE    65                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72        87      1967                    
 MINIMUM TEMPERATURE (F)   47        26      1974                    

                                                                      
SUNRISE AND SUNSET                                                   
OCTOBER  4 2007.......SUNRISE   708 AM EDT   SUNSET   648 PM EDT   
OCTOBER  5 2007.......SUNRISE   709 AM EDT   SUNSET   647 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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