AFOS product CLIIAD
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411 
CDUS41 KLWX 300537
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
137 AM EDT SUN AUG 30 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 29 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         86   4:41 PM  98    1991  85      1       83        
  MINIMUM         72   6:45 AM  38    1982  62     10       56        
  AVERAGE         79                        74      5       70     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.20          1.17 1963   0.10   0.10     0.00     
  MONTH TO DATE    7.09                      3.32   3.77     4.79     
  SINCE JUN 1     17.15                     10.97   6.18     9.96     
  SINCE JAN 1     33.67                     27.79   5.88    29.84     

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 JUN 1      0.0                       0.0    0.0       T       
  SINCE JUL 1      0.0                       0.0    0.0      0.0      
  SNOW DEPTH      MM                                                  

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE JUN 1      5                        15    -10        9        
  SINCE JUL 1      0                         0      0        0        

 COOLING                                                              
  YESTERDAY       14                         9      5        5        
  MONTH TO DATE  389                       305     84      339        
  SINCE JUN 1   1163                       905    258     1039        
  SINCE JAN 1   1240                       997    243     1218        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     W (260)       
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (230)       
  AVERAGE WIND SPEED     6.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.7                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          10:00 AM                                      
 LOWEST     58           7:00 PM                                      
 AVERAGE    78                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   85        99      1991                      
 MINIMUM TEMPERATURE (F)   62        41      1986                      


SUNRISE AND SUNSET                                                    
AUGUST 30 2020........SUNRISE   6:37 AM EDT   SUNSET   7:42 PM EDT     
AUGUST 31 2020........SUNRISE   6:38 AM EDT   SUNSET   7:41 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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