AFOS product CLIIAD
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CDUS41 KLWX 220522
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1222 AM EST SUN NOV 22 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 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         67   1:36 PM  76    2007  55     12       54        
  MINIMUM         40   3:12 AM  16    1969  34      6       30        
  AVERAGE         54                        45      9       42     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             0.83 2005   0.12  -0.12      T       
  MONTH TO DATE    2.03                      2.38  -0.35     0.42     
  SINCE SEP 1      7.85                      9.55  -1.70     6.80     
  SINCE JAN 1     42.07                     37.55   4.52    36.64     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.2  1987   0.1   -0.1      0.0      
  MONTH TO DATE    0.0                       0.2   -0.2       T       
  SINCE SEP 1      0.0                       0.2   -0.2       T       
  SINCE JUL 1      0.0                       0.2   -0.2       T       
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       11                        20     -9       23        
  MONTH TO DATE  263                       358    -95      481        
  SINCE SEP 1    530                       712   -182      666        
  SINCE JUL 1    530                       714   -184      666        

 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     9   HIGHEST WIND DIRECTION    NE (30)        
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     N (20)        
  AVERAGE WIND SPEED     3.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.7                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT RAIN                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82           4:00 AM                                      
 LOWEST     54           1:00 PM                                      
 AVERAGE    68                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   55        75      2007                      
 MINIMUM TEMPERATURE (F)   34        14      1964                      
                                             2014                     


SUNRISE AND SUNSET                                                    
NOVEMBER 22 2020......SUNRISE   7:01 AM EST   SUNSET   4:51 PM EST     
NOVEMBER 23 2020......SUNRISE   7:02 AM EST   SUNSET   4:51 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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