AFOS product CLIIAD
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CDUS41 KLWX 050530
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
129 AM EDT WED APR 5 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 4 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         79    406 PM  85    2011  63     16       72       
  MINIMUM         56    139 AM  22    2013  39     17       38       
                                      1965                          
  AVERAGE         68                        51     17       55      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.47 1987   0.12  -0.12     0.03    
  MONTH TO DATE    0.06                      0.49  -0.43     0.14    
  SINCE MAR 1      4.18                      3.87   0.31     1.59    
  SINCE JAN 1      7.62                      9.29  -1.67     9.85    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.2  1990   0.0    0.0              
  MONTH TO DATE    0.0                       0.1   -0.1              
  SINCE JUL 1      7.3                      21.8  -14.5              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                        15    -15       10       
  MONTH TO DATE   39                        61    -22       42       
  SINCE MAR 1    679                       708    -29      488       
  SINCE JUL 1   3572                      4298   -726     3579       
                                                                     
 COOLING                                                             
  YESTERDAY        3                         0      3        0       
  MONTH TO DATE    3                         0      3        8       
  SINCE MAR 1      5                         3      2       13       
  SINCE JAN 1      5                         3      2       13       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED    12.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1200 AM                                     
 LOWEST     27           500 PM                                     
 AVERAGE    60                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   63        86      2010                    
 MINIMUM TEMPERATURE (F)   39        22      1965                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL  5 2017.........SUNRISE   648 AM EDT   SUNSET   738 PM EDT   
APRIL  6 2017.........SUNRISE   646 AM EDT   SUNSET   739 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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