AFOS product CLIIAD
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CDUS41 KLWX 150525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1224 AM EST WED JAN 15 2020


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 14 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         48    724 PM  72    1995  42      6       34       
  MINIMUM         38    130 AM   5    1970  24     14       15       
  AVERAGE         43                        33     10       25      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.08          1.79 2005   0.09  -0.01      T      
  MONTH TO DATE    1.45                      1.16   0.29     1.13    
  SINCE DEC 1      4.42                      4.12   0.30     6.89    
  SINCE JAN 1      1.45                      1.16   0.29     1.13    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.3  1978   0.2   -0.2              
  MONTH TO DATE    2.0                       2.7   -0.7              
  SINCE JUL 1      2.6                       6.7   -4.1              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       22                        32    -10       40       
  MONTH TO DATE  313                       448   -135      384       
  SINCE DEC 1   1113                      1330   -217     1188       
  SINCE JUL 1   1976                      2246   -270     2146       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    SE (140)      
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    SE (140)      
  AVERAGE WIND SPEED     2.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           200 PM                                     
 LOWEST     85           100 AM                                     
 AVERAGE    93                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        68      2007                    
 MINIMUM TEMPERATURE (F)   24        -7      1964                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 15 2020.......SUNRISE   727 AM EST   SUNSET   511 PM EST   
JANUARY 16 2020.......SUNRISE   727 AM EST   SUNSET   512 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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