AFOS product CLIIAD
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CDUS41 KLWX 230521
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
121 AM EDT FRI OCT 23 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 22 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         82   3:06 PM  85    1979  66     16       60        
  MINIMUM         59   4:30 AM  26    1974  42     17       48        
  AVERAGE         71                        54     17       54     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.90 1985   0.10  -0.10     0.38     
  MONTH TO DATE    1.33                      2.29  -0.96     2.96     
  SINCE SEP 1      3.61                      6.21  -2.60     3.37     
  SINCE JAN 1     37.83                     34.21   3.62    33.21     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE SEP 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1      0.0                       0.0    0.0      0.0      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                        11    -11       11        
  MONTH TO DATE  128                       183    -55      124        
  SINCE SEP 1    189                       239    -50      129        
  SINCE JUL 1    189                       241    -52      129        

 COOLING                                                              
  YESTERDAY        6                         0      6        0        
  MONTH TO DATE   14                        16     -2       48        
  SINCE SEP 1    149                       157     -8      286        
  SINCE JAN 1   1401                      1173    228     1521        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SE (140)       
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     S (190)       
  AVERAGE WIND SPEED     3.5                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.5                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 
  FOG W/VISIBILITY <= 1/4 MILE                                        
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           3:00 AM                                      
 LOWEST     54           3:00 PM                                      
 AVERAGE    77                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   66        85      1978                      
 MINIMUM TEMPERATURE (F)   41        21      1969                      


SUNRISE AND SUNSET                                                    
OCTOBER 23 2020.......SUNRISE   7:28 AM EDT   SUNSET   6:20 PM EDT     
OCTOBER 24 2020.......SUNRISE   7:29 AM EDT   SUNSET   6:18 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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