AFOS product CLIIAD
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CDUS41 KLWX 050523
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1223 AM EST SUN FEB 5 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 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         39    349 PM  70    1991  44     -5       54       
  MINIMUM         14    727 AM   4    1996  25    -11       40       
                                      1965                          
  AVERAGE         27                        34     -7       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.17 1998   0.10  -0.10     0.01    
  MONTH TO DATE    T                         0.40  -0.40     0.95    
  SINCE DEC 1      5.09                      6.04  -0.95     9.18    
  SINCE JAN 1      2.73                      3.08  -0.35     5.42    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           6.2  1995   0.3   -0.3              
  MONTH TO DATE    T                         1.3   -1.3              
  SINCE JUL 1      1.0                      12.6  -11.6              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       38                        31      7       18       
  MONTH TO DATE  120                       124     -4       77       
  SINCE DEC 1   1729                      1992   -263     1613       
  SINCE JUL 1   2456                      2908   -452     2363       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        2       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED     6.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    73           700 AM                                     
 LOWEST     21           200 PM                                     
 AVERAGE    47                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   44        73      1991                    
 MINIMUM TEMPERATURE (F)   25       -10      1996                    

                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY  5 2017......SUNRISE   712 AM EST   SUNSET   536 PM EST   
FEBRUARY  6 2017......SUNRISE   711 AM EST   SUNSET   537 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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