AFOS product CLIIAD
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CDUS41 KLWX 150540
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
139 AM EDT THU MAR 15 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MARCH 14 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         82   1221 PM  88    1990  54     28       73       
  MINIMUM         55    652 AM  15    1993  31     24       41       
                                      1968                          
  AVERAGE         69                        43     26       57      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.99 1999   0.12  -0.12     0.02    
  MONTH TO DATE    0.86                      1.59  -0.73     0.04    
  SINCE MAR 1      0.86                      1.59  -0.73     0.04    
  SINCE JAN 1      5.51                      7.41  -1.90     4.82    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.1   -0.1              
  MONTH TO DATE    1.9                       1.8    0.1              
  SINCE AUG 1     13.3                      19.2   -5.9              
  SINCE JUL 1     13.3                      19.2   -5.9              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                        22    -22        8       
  MONTH TO DATE  327                       341    -14      235       
  SINCE MAR 1    327                       341    -14      235       
  SINCE JUL 1   3703                      4101   -398     3463       
                                                                     
 COOLING                                                             
  YESTERDAY        4                         0      4        0       
  MONTH TO DATE    4                         0      4        3       
  SINCE MAR 1      4                         0      4        3       
  SINCE JAN 1      4                         0      4        3       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    SW (240)      
  AVERAGE WIND SPEED     8.2                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    61           300 AM                                     
 LOWEST     30           100 PM                                     
 AVERAGE    46                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   55        82      1990                    
 MINIMUM TEMPERATURE (F)   32        -1      1993                    

                                                                      
SUNRISE AND SUNSET                                                   
MARCH 15 2007.........SUNRISE   722 AM EDT   SUNSET   717 PM EDT   
MARCH 16 2007.........SUNRISE   720 AM EDT   SUNSET   718 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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