AFOS product CLIDCA
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CDUS41 KLWX 290527
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1226 AM EST THU DEC 29 2016


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 28 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         52   1210 AM  75    1946  44      8       60       
  MINIMUM         37   1154 PM  10    1914  30      7       41       
  AVERAGE         45                        37      8       51      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.38 1922   0.09  -0.09     0.23    
  MONTH TO DATE    2.37                      2.80  -0.43     4.19    
  SINCE DEC 1      2.37                      2.80  -0.43     4.19    
  SINCE JAN 1     31.46                     39.49  -8.03    44.37    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           2.0  1993   0.1   -0.1              
  MONTH TO DATE    T                         2.0   -2.0              
  SINCE JUL 1      T                         2.5   -2.5              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       20                        28     -8       14       
  MONTH TO DATE  636                       700    -64      378       
  SINCE DEC 1    636                       700    -64      378       
  SINCE JUL 1   1123                      1395   -272      913       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        1       
  SINCE DEC 1      0                         0      0        1       
  SINCE JAN 1   1994                      1549    445     1999       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    NW (330)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     7.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    70          1000 PM                                     
 LOWEST     35           300 PM                                     
 AVERAGE    53                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   44        75      1984                    
 MINIMUM TEMPERATURE (F)   30         2      1917                    
                                             1880                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 29 2016......SUNRISE   726 AM EST   SUNSET   455 PM EST   
DECEMBER 30 2016......SUNRISE   726 AM EST   SUNSET   456 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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