AFOS product CLIDCA
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061 
CDUS41 KLWX 240520
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1220 AM EST MON DEC 24 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 23 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         47    405 PM  71    1990  45      2       53       
                                      1875                          
  MINIMUM         29    753 AM   7    1989  31     -2       44       
  AVERAGE         38                        38      0       49      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.30 1907   0.09  -0.09     0.29    
  MONTH TO DATE    1.27                      2.34  -1.07     4.29    
  SINCE DEC 1      1.27                      2.34  -1.07     4.29    
  SINCE JAN 1     30.69                     39.03  -8.34    46.28    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           5.6  1963   0.0    0.0              
  MONTH TO DATE    0.0                       1.5   -1.5              
  SINCE JUL 1      T                         2.0   -2.0              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       27                        27      0       16       
  MONTH TO DATE  393                       561   -168      445       
  SINCE DEC 1    393                       561   -168      445       
  SINCE JUL 1   1104                      1256   -152     1040       
                                                                     
 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    SW (210)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED     5.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    70           900 PM                                     
 LOWEST     31           200 PM                                     
 AVERAGE    51                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   45        69      1933                    
 MINIMUM TEMPERATURE (F)   31         5      1983                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 24 2012......SUNRISE   725 AM EST   SUNSET   452 PM EST   
DECEMBER 25 2012......SUNRISE   725 AM EST   SUNSET   452 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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