AFOS product CLIIAD
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854 
CDUS41 KLWX 200523
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1223 AM EST FRI NOV 20 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 19 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         54   3:27 PM  76    1985  56     -2       54        
  MINIMUM         24   2:09 AM  13    2014  35    -11       39        
  AVERAGE         39                        45     -6       47     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.93 2003   0.12  -0.12      T       
  MONTH TO DATE    2.03                      2.15  -0.12     0.42     
  SINCE SEP 1      7.85                      9.32  -1.47     6.80     
  SINCE JAN 1     42.07                     37.32   4.75    36.64     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           T    1969   0.0    0.0      0.0      
                                      1984                           
                                      2016                           
  MONTH TO DATE    0.0                       0.1   -0.1       T       
  SINCE SEP 1      0.0                       0.1   -0.1       T       
  SINCE JUL 1      0.0                       0.1   -0.1       T       
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       26                        20      6       18        
  MONTH TO DATE  237                       318    -81      441        
  SINCE SEP 1    504                       672   -168      626        
  SINCE JUL 1    504                       674   -170      626        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    1                         0      1        0        
  SINCE SEP 1    154                       160     -6      289        
  SINCE JAN 1   1406                      1176    230     1524        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (200)       
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (200)       
  AVERAGE WIND SPEED     9.2                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88           4:00 AM                                      
 LOWEST     36           3:00 PM                                      
 AVERAGE    62                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   56        79      1985                      
 MINIMUM TEMPERATURE (F)   34        18      1980                      


SUNRISE AND SUNSET                                                    
NOVEMBER 20 2020......SUNRISE   6:59 AM EST   SUNSET   4:52 PM EST     
NOVEMBER 21 2020......SUNRISE   7:00 AM EST   SUNSET   4:52 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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