AFOS product CLIIAD
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CDUS41 KLWX 020526
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
126 AM EDT FRI JUN 2 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 1 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         82    216 PM  95    2011  80      2       87       
  MINIMUM         57   1147 PM  39    1984  57      0       63       
  AVERAGE         70                        68      2       75      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.22 1969   0.15  -0.15     0.00    
  MONTH TO DATE    0.00                      0.15  -0.15     0.00    
  SINCE JUN 1      0.00                      0.15  -0.15     0.00    
  SINCE JAN 1     19.09                     16.97   2.12    17.67    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          MM      MM   0.0    0.0              
  MONTH TO DATE    0.0                       0.0    0.0              
  SINCE JUL 1      7.3                      22.0  -14.7              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE    0                         2     -2        0       
  SINCE JUN 1      0                         2     -2        0       
  SINCE JUL 1   3852                      4704   -852     4036       
                                                                     
 COOLING                                                             
  YESTERDAY        5                         5      0       10       
  MONTH TO DATE    5                         5      0       10       
  SINCE JUN 1      5                         5      0       10       
  SINCE JAN 1    142                        97     45      108       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NW (320)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED     6.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     30           500 PM                                     
 AVERAGE    65                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        91      2009                    
                                             2000                    
                                             1978                    
 MINIMUM TEMPERATURE (F)   57        41      1993                    

                                                                     
SUNRISE AND SUNSET                                                   
JUNE  2 2017..........SUNRISE   546 AM EDT   SUNSET   830 PM EDT   
JUNE  3 2017..........SUNRISE   545 AM EDT   SUNSET   831 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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