AFOS product CLIDCA
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CDUS41 KLWX 100529
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1229 AM EST MON DEC 10 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 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         52   1200 PM  71    1991  49      3       51       
  MINIMUM         49   1159 PM   4    1876  34     15       34       
  AVERAGE         51                        41     10       43      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.14          1.29 2009   0.11   0.03     0.00    
  MONTH TO DATE    0.21                      0.97  -0.76     3.34    
  SINCE DEC 1      0.21                      0.97  -0.76     3.34    
  SINCE JAN 1     29.63                     37.66  -8.03    45.33    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           1.6  2005   0.0    0.0              
  MONTH TO DATE    0.0                       0.5   -0.5              
  SINCE JUL 1      T                         1.0   -1.0              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       14                        24    -10       22       
  MONTH TO DATE  137                       201    -64      165       
  SINCE DEC 1    137                       201    -64      165       
  SINCE JUL 1    848                       896    -48      760       
                                                                     
 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    16   HIGHEST WIND DIRECTION    NE (60)       
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NE (60)       
  AVERAGE WIND SPEED     6.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1200 AM                                     
 LOWEST     77           100 PM                                     
 AVERAGE    85                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   48        67      1966                    
                                             1939                    
 MINIMUM TEMPERATURE (F)   34         4      1876                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 10 2012......SUNRISE   716 AM EST   SUNSET   446 PM EST   
DECEMBER 11 2012......SUNRISE   717 AM EST   SUNSET   446 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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