AFOS product CLIIAD
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CDUS41 KLWX 060523
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1223 AM EST MON JAN 6 2020


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 5 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         43    117 AM  69    1997  42      1       53       
  MINIMUM         27   1159 PM   5    1970  24      3       40       
  AVERAGE         35                        33      2       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.11 1993   0.09  -0.09     0.11    
  MONTH TO DATE    0.68                      0.40   0.28     0.14    
  SINCE DEC 1      3.65                      3.36   0.29     5.90    
  SINCE JAN 1      0.68                      0.40   0.28     0.14    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           6.4  1980   0.1   -0.1              
  MONTH TO DATE    0.0                       0.8   -0.8              
  SINCE JUL 1      0.6                       4.8   -4.2              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       30                        32     -2       18       
  MONTH TO DATE  115                       160    -45      109       
  SINCE DEC 1    915                      1042   -127      913       
  SINCE JUL 1   1778                      1958   -180     1871       
                                                                     
 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    28   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED    12.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    78          1000 PM                                     
 LOWEST     46           200 PM                                     
 AVERAGE    62                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        71      2007                    
 MINIMUM TEMPERATURE (F)   24         4      1999                    
                                             1977                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY  6 2020.......SUNRISE   729 AM EST   SUNSET   502 PM EST   
JANUARY  7 2020.......SUNRISE   729 AM EST   SUNSET   503 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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