AFOS product CLIDCA
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CDUS41 KLWX 100522
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1222 AM EST TUE JAN 10 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 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         40   1152 AM  76    1937  43     -3       36       
  MINIMUM         33    525 PM   4    1970  29      4       23       
  AVERAGE         37                        36      1       30      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.16          1.87 1879   0.09   0.07     0.00    
  MONTH TO DATE    0.16                      0.79  -0.63     0.09    
  SINCE DEC 1      5.06                      3.84   1.22     1.87    
  SINCE JAN 1      0.16                      0.79  -0.63     0.09    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.6           2.9  1926   0.2    0.4              
  MONTH TO DATE    0.6                       1.2   -0.6              
  SINCE JUL 1      0.6                       4.0   -3.4              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       28                        29     -1       35       
  MONTH TO DATE  219                       261    -42      258       
  SINCE DEC 1    832                      1047   -215     1191       
  SINCE JUL 1   1427                      1742   -315     1763       
                                                                     
 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    10   HIGHEST WIND DIRECTION    NE (30)       
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     N (20)       
  AVERAGE WIND SPEED     3.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96           600 PM                                     
 LOWEST     52           200 AM                                     
 AVERAGE    74                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   43        70      1950                    
 MINIMUM TEMPERATURE (F)   29        -3      1875                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 10 2012.......SUNRISE   726 AM EST   SUNSET   505 PM EST   
JANUARY 11 2012.......SUNRISE   726 AM EST   SUNSET   506 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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