AFOS product CLIDCA
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CDUS41 KLWX 140521
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1221 AM EST FRI DEC 14 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 13 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         50    241 PM  71    1889  47      3       52       
  MINIMUM         35   1150 PM  11    1960  33      2       30       
  AVERAGE         43                        40      3       41      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.43 1909   0.09  -0.09     0.00    
  MONTH TO DATE    0.29                      1.39  -1.10     3.34    
  SINCE DEC 1      0.29                      1.39  -1.10     3.34    
  SINCE JAN 1     29.71                     38.08  -8.37    45.33    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           6.7  1966   0.1   -0.1              
  MONTH TO DATE    0.0                       0.8   -0.8              
  SINCE JUL 1      T                         1.3   -1.3              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       22                        25     -3       24       
  MONTH TO DATE  203                       299    -96      270       
  SINCE DEC 1    203                       299    -96      270       
  SINCE JUL 1    914                       994    -80      865       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1975                      1549    426     1925       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NE (50)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NE (40)       
  AVERAGE WIND SPEED     6.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    59           700 AM                                     
 LOWEST     34           100 PM                                     
 AVERAGE    47                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   47        70      1931                    
                                             1929                    
                                             1881                    
 MINIMUM TEMPERATURE (F)   33         6      1904                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 14 2012......SUNRISE   719 AM EST   SUNSET   447 PM EST   
DECEMBER 15 2012......SUNRISE   720 AM EST   SUNSET   447 PM EST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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