AFOS product CLIDCA
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CDUS41 KLWX 120520
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1220 AM EST THU JAN 12 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 11 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         49   1159 PM  75    1975  43      6       34       
  MINIMUM         33    702 AM   2    1982  29      4       28       
  AVERAGE         41                        36      5       31      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.51          1.72 1922   0.10   0.41     0.11    
  MONTH TO DATE    0.67                      0.98  -0.31     0.20    
  SINCE DEC 1      5.57                      4.03   1.54     1.98    
  SINCE JAN 1      0.67                      0.98  -0.31     0.20    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           4.3  1904   0.2   -0.2              
  MONTH TO DATE    0.6                       1.5   -0.9              
  SINCE JUL 1      0.6                       4.3   -3.7              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       24                        29     -5       34       
  MONTH TO DATE  265                       319    -54      327       
  SINCE DEC 1    878                      1105   -227     1260       
  SINCE JUL 1   1473                      1800   -327     1832       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (80)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     E (80)       
  AVERAGE WIND SPEED     6.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1100 PM                                     
 LOWEST     76          1200 PM                                     
 AVERAGE    85                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   43        76      1890                    
 MINIMUM TEMPERATURE (F)   28         3      1886                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 12 2012.......SUNRISE   726 AM EST   SUNSET   507 PM EST   
JANUARY 13 2012.......SUNRISE   726 AM EST   SUNSET   508 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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