AFOS product CLIIAD
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CDUS41 KLWX 150523
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
122 AM EDT THU JUN 15 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 14 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         90    247 PM  98    1994  84      6       80       
  MINIMUM         72    123 AM  41    1979  61     11       61       
  AVERAGE         81                        72      9       71      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.91 1989   0.13  -0.13     0.00    
  MONTH TO DATE    0.18                      1.92  -1.74     1.04    
  SINCE JUN 1      0.18                      1.92  -1.74     1.04    
  SINCE JAN 1     19.27                     18.74   0.53    18.71    
                                                                     
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                         0      0        0       
  MONTH TO DATE    6                        13     -7        3       
  SINCE JUN 1      6                        13     -7        3       
  SINCE JUL 1   3858                      4715   -857     4039       
                                                                     
 COOLING                                                             
  YESTERDAY       16                         8      8        6       
  MONTH TO DATE   91                        86      5      112       
  SINCE JUN 1     91                        86      5      112       
  SINCE JAN 1    228                       178     50      210       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (340)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (360)      
  AVERAGE WIND SPEED     7.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    74           200 AM                                     
 LOWEST     50           200 PM                                     
 AVERAGE    62                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   84        99      1994                    
 MINIMUM TEMPERATURE (F)   61        42      1978                    

                                                                     
SUNRISE AND SUNSET                                                   
JUNE 15 2017..........SUNRISE   544 AM EDT   SUNSET   837 PM EDT   
JUNE 16 2017..........SUNRISE   544 AM EDT   SUNSET   837 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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