AFOS product CLIIAD
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CDUS41 KLWX 120524
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1224 AM EST THU NOV 12 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 11 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         70   6:06 PM  78    2006  60     10       69        
  MINIMUM         62  12:00 AM  16    1973  37     25       31        
  AVERAGE         66                        48     18       50     

PRECIPITATION (IN)                                                    
  YESTERDAY        1.21R         1.16 1995   0.10   1.11     0.00     
  MONTH TO DATE    1.55                      1.25   0.30     0.13     
  SINCE SEP 1      7.37                      8.42  -1.05     6.51     
  SINCE JAN 1     41.59                     36.42   5.17    36.35     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           5.3  1987   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.1   -0.1      0.0      
  SINCE SEP 1      0.0                       0.1   -0.1      0.0      
  SINCE JUL 1      0.0                       0.1   -0.1      0.0      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                        17    -17       15        
  MONTH TO DATE  104                       170    -66      229        
  SINCE SEP 1    371                       524   -153      414        
  SINCE JUL 1    371                       526   -155      414        

 COOLING                                                              
  YESTERDAY        1                         0      1        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    15   HIGHEST WIND DIRECTION     S (190)       
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (170)       
  AVERAGE WIND SPEED     7.0                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.9                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  HEAVY RAIN                                                          
  RAIN                                                                
  LIGHT RAIN                                                          
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          10:00 PM                                      
 LOWEST     87           1:00 AM                                      
 AVERAGE    94                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   59        74      1964                      
 MINIMUM TEMPERATURE (F)   36        22      1973                      
                                             1988                     


SUNRISE AND SUNSET                                                    
NOVEMBER 12 2020......SUNRISE   6:50 AM EST   SUNSET   4:58 PM EST     
NOVEMBER 13 2020......SUNRISE   6:51 AM EST   SUNSET   4:57 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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