AFOS product CLIIAD
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CDUS41 KLWX 180524
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1224 AM EST WED NOV 18 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 17 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         56  10:48 AM  75    1963  57     -1       44        
  MINIMUM         32   1:30 AM  17    1976  35     -3       34        
  AVERAGE         44                        46     -2       39     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.03 1987   0.11  -0.11     0.00     
  MONTH TO DATE    2.03                      1.91   0.12     0.29     
  SINCE SEP 1      7.85                      9.08  -1.23     6.67     
  SINCE JAN 1     42.07                     37.08   4.99    36.51     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           T    1965   0.0    0.0      0.0      
                                      1967                           
                                      1980                           
  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       21                        19      2       26        
  MONTH TO DATE  182                       279    -97      398        
  SINCE SEP 1    449                       633   -184      583        
  SINCE JUL 1    449                       635   -186      583        

 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    32   HIGHEST WIND DIRECTION    NW (300)       
  HIGHEST GUST SPEED    47   HIGHEST GUST DIRECTION    NW (310)       
  AVERAGE WIND SPEED    14.2                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    67           2:00 AM                                      
 LOWEST     37           3:00 PM                                      
 AVERAGE    52                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   57        76      1963                      
 MINIMUM TEMPERATURE (F)   35        18      2014                      


SUNRISE AND SUNSET                                                    
NOVEMBER 18 2020......SUNRISE   6:56 AM EST   SUNSET   4:53 PM EST     
NOVEMBER 19 2020......SUNRISE   6:58 AM EST   SUNSET   4:53 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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