AFOS product CLIDCA
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CDUS41 KLWX 110522
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1222 AM EST FRI DEC 11 2015


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 10 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         63    154 PM  67    1966  48     15       51       
                                      1939                          
  MINIMUM         41    800 AM   4    1876  34      7       40       
  AVERAGE         52                        41     11       46      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             2.23 1878   0.11  -0.11     0.00    
  MONTH TO DATE    1.07                      1.08  -0.01     1.68    
  SINCE DEC 1      1.07                      1.08  -0.01     1.68    
  SINCE JAN 1     41.25                     37.77   3.48    42.59    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           7.0  1904   0.1   -0.1              
  MONTH TO DATE    0.0                       0.6   -0.6              
  SINCE JUL 1      0.0                       1.1   -1.1              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       13                        24    -11       19       
  MONTH TO DATE  179                       225    -46      200       
  SINCE DEC 1    179                       225    -46      200       
  SINCE JUL 1    714                       920   -206      807       
                                                                     
 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     8   HIGHEST WIND DIRECTION    SE (140)      
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    SE (140)      
  AVERAGE WIND SPEED     2.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96           500 AM                                     
 LOWEST     47           400 PM                                     
 AVERAGE    72                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   48        68      1979                    
                                             1971                    
                                             1897                    
 MINIMUM TEMPERATURE (F)   34        12      1917                    
                                             1904                    
                                             1880                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 11 2015......SUNRISE   716 AM EST   SUNSET   446 PM EST   
DECEMBER 12 2015......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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