AFOS product CLIDCA
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CDUS41 KLWX 200526
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1224 AM EST SUN DEC 20 2015


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 19 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         45    348 PM  74    1924  46     -1       43       
  MINIMUM         30    658 AM   6    1884  32     -2       34       
  AVERAGE         38                        39     -1       39      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.34 2009   0.10  -0.10     0.00    
  MONTH TO DATE    1.62                      1.97  -0.35     2.08    
  SINCE DEC 1      1.62                      1.97  -0.35     2.08    
  SINCE JAN 1     41.80                     38.66   3.14    42.99    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          15.0  2009   0.0    0.0              
  MONTH TO DATE    0.0                       1.2   -1.2              
  SINCE JUL 1      0.0                       1.7   -1.7              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       27                        26      1       26       
  MONTH TO DATE  293                       453   -160      394       
  SINCE DEC 1    293                       453   -160      394       
  SINCE JUL 1    828                      1148   -320     1001       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1998                      1549    449     1712       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    46   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     9.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    61           100 AM                                     
 LOWEST     31           400 PM                                     
 AVERAGE    46                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   45        66      1889                    
                                             1877                    
 MINIMUM TEMPERATURE (F)   31         5      1942                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 20 2015......SUNRISE   722 AM EST   SUNSET   449 PM EST   
DECEMBER 21 2015......SUNRISE   723 AM EST   SUNSET   449 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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