AFOS product CLIIAD
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CDUS41 KLWX 230527
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
126 AM EDT MON JUL 23 2007


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

...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 22 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         87    132 PM  98    1998  88     -1       90       
  MINIMUM         64   1159 PM  50    1974  65     -1       71       
  AVERAGE         76                        76      0       81      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.25 1969   0.11  -0.11     0.15    
  MONTH TO DATE    0.84                      2.56  -1.72     2.34    
  SINCE JUN 1      3.76                      6.63  -2.87    14.13    
  SINCE JAN 1     15.06                     23.44  -8.38    25.64    
                                                                     
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                         0      0        0       
  MONTH TO DATE    0                         1     -1        0       
  SINCE JUN 1      3                        22    -19        4       
  SINCE JUL 1      0                         1     -1        0       
                                                                     
 COOLING                                                             
  YESTERDAY       11                        12     -1       16       
  MONTH TO DATE  264                       239     25      295       
  SINCE JUN 1    555                       442    113      534       
  SINCE JAN 1    706                       517    189      616       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NE (60)       
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM            
  AVERAGE WIND SPEED     7.1                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    56          1200 AM                                     
 LOWEST     25           400 PM                                     
 AVERAGE    41                                                       

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

                                                                      
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88        99      1991                    
 MINIMUM TEMPERATURE (F)   65        50      1983                    
                                             1977                    

                                                                      
SUNRISE AND SUNSET                                                   
JULY 23 2007..........SUNRISE   603 AM EDT   SUNSET   829 PM EDT   
JULY 24 2007..........SUNRISE   603 AM EDT   SUNSET   829 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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