AFOS product CLIDCA
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CDUS41 KLWX 100520
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
120 AM EDT FRI AUG 10 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR AUGUST 9 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         95    435 PM 102    1930  87      8       95       
  MINIMUM         76   1137 PM  57    1989  71      5       77       
  AVERAGE         86                        79      7       86      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.71 1905   0.10  -0.10     0.00    
  MONTH TO DATE    0.05                      0.95  -0.90     1.00    
  SINCE JUN 1      5.24                      8.46  -3.22     5.71    
  SINCE JAN 1     15.98                     24.42  -8.44    19.38    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          MM      MM   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                         0      0        0       
  SINCE JUN 1      0                         6     -6        0       
  SINCE JUL 1      0                         0      0        0       
                                                                     
 COOLING                                                             
  YESTERDAY       21                        14      7       21       
  MONTH TO DATE  185                       126     59      175       
  SINCE JUN 1   1126                       897    229     1209       
  SINCE JAN 1   1385                      1031    354     1409       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     N (350)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     N (340)      
  AVERAGE WIND SPEED     7.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    94           400 AM                                     
 LOWEST     33           300 PM                                     
 AVERAGE    64                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   87        98      2010                    
                                             1943                    
 MINIMUM TEMPERATURE (F)   71        55      1919                    
                                             1879                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 10 2012........SUNRISE   618 AM EDT   SUNSET   808 PM EDT   
AUGUST 11 2012........SUNRISE   619 AM EDT   SUNSET   807 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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