AFOS product CLIDCA
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CDUS41 KLWX 180524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
124 AM EDT SUN SEP 18 2016


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 17 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         83    455 PM  96    1991  79      4       86       
  MINIMUM         68    515 AM  44    1923  62      6       63       
  AVERAGE         76                        71      5       75      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          3.26 1876   0.14  -0.14     0.00    
  MONTH TO DATE    0.05                      2.02  -1.97     0.27    
  SINCE SEP 1      0.05                      2.02  -1.97     0.27    
  SINCE JAN 1     24.98                     28.42  -3.44    33.16    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          MM      MM   0.0    0.0              
  MONTH TO DATE    0.0                       0.0    0.0              
  SINCE JUL 1      0.0                       0.0    0.0              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    0                         2     -2        0       
  SINCE SEP 1      0                         2     -2        0       
  SINCE JUL 1      0                         2     -2        0       
                                                                     
 COOLING                                                             
  YESTERDAY       11                         6      5       10       
  MONTH TO DATE  239                       147     92      216       
  SINCE SEP 1    239                       147     92      216       
  SINCE JAN 1   1825                      1458    367     1890       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     8.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87          1100 PM                                     
 LOWEST     55           100 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79        91      1927                    
                                             1921                    
                                             1898                    
 MINIMUM TEMPERATURE (F)   62        45      1937                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 18 2016.....SUNRISE   653 AM EDT   SUNSET   711 PM EDT   
SEPTEMBER 19 2016.....SUNRISE   654 AM EDT   SUNSET   709 PM EDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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