AFOS product CLIIAD
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CDUS41 KLWX 210552
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
145 AM EDT FRI JUL 21 2006

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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 20 2006...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2006

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         89    412 PM 101    1980  88      1       90       
  MINIMUM         71    423 AM  55    1974  64      7       73       
  AVERAGE         80                        76      4       82      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.28 1970   0.11  -0.11     0.00    
  MONTH TO DATE    2.19                      2.34  -0.15     6.99    
  SINCE JUN 1     13.98                      6.41   7.57     8.91    
  SINCE JAN 1     25.49                     23.22   2.27    26.59    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0      0.0     
  MONTH TO DATE    0.0                       0.0    0.0      0.0     
  SINCE JUN 1      0.0                       0.0    0.0      0.0     
  SINCE JUL 1      0.0                       0.0    0.0      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         1     -1        0       
  SINCE JUN 1      4                        22    -18        9       
  SINCE JUL 1      0                         1     -1        0       
                                                                     
 COOLING                                                             
  YESTERDAY       15                        12      3       17       
  MONTH TO DATE  261                       215     46      264       
  SINCE JUN 1    500                       418     82      537       
  SINCE JAN 1    582                       493     89      565       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     4.3                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     52           400 PM                                     
 AVERAGE    73                                                       
..........................................................
                                                                     
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       101      1991                    
 MINIMUM TEMPERATURE (F)   65        48      1966                    
                                                                     
SUNRISE AND SUNSET                                                   
JULY 21 2006..........SUNRISE   601 AM EDT   SUNSET   831 PM EDT   
JULY 22 2006..........SUNRISE   602 AM EDT   SUNSET   830 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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