AFOS product CLIIAD
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CDUS41 KLWX 220529
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
129 AM EDT THU OCT 22 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 21 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         80   2:46 PM  86    1979  67     13       69        
  MINIMUM         58  12:01 AM  22    1972  42     16       54        
  AVERAGE         69                        54     15       62     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             2.45 1995   0.11  -0.11     0.00     
  MONTH TO DATE    1.33                      2.19  -0.86     2.58     
  SINCE SEP 1      3.61                      6.11  -2.50     2.99     
  SINCE JAN 1     37.83                     34.11   3.72    32.83     

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        3        
  MONTH TO DATE  128                       172    -44      113        
  SINCE SEP 1    189                       228    -39      118        
  SINCE JUL 1    189                       230    -41      118        

 COOLING                                                              
  YESTERDAY        4                         0      4        0        
  MONTH TO DATE    8                        16     -8       48        
  SINCE SEP 1    143                       157    -14      286        
  SINCE JAN 1   1395                      1173    222     1521        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (190)       
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    SE (130)       
  AVERAGE WIND SPEED     6.5                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           5:00 AM                                      
 LOWEST     62           2:00 PM                                      
 AVERAGE    81                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   66        85      1979                      
 MINIMUM TEMPERATURE (F)   42        26      1974                      


SUNRISE AND SUNSET                                                    
OCTOBER 22 2020.......SUNRISE   7:27 AM EDT   SUNSET   6:21 PM EDT     
OCTOBER 23 2020.......SUNRISE   7:28 AM EDT   SUNSET   6:20 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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