AFOS product CLIIAD
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CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1222 AM EST MON FEB 10 2020


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 9 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         49    423 PM  69    2001  45      4       34       
  MINIMUM         24    737 AM  -5    1967  25     -1       20       
  AVERAGE         37                        35      2       27      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.07 1970   0.10  -0.10     0.00    
  MONTH TO DATE    1.18                      0.89   0.29     0.16    
  SINCE DEC 1      7.48                      6.53   0.95     9.88    
  SINCE JAN 1      4.51                      3.57   0.94     4.12    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           2.2  2010   0.3   -0.3              
  MONTH TO DATE    0.0                       2.8   -2.8              
  SINCE JUL 1      2.9                      14.1  -11.2              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       28                        30     -2       38       
  MONTH TO DATE  180                       275    -95      239       
  SINCE DEC 1   1784                      2143   -359     2044       
  SINCE JUL 1   2647                      3059   -412     3002       
                                                                     
 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    15   HIGHEST WIND DIRECTION     S (160)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SE (150)      
  AVERAGE WIND SPEED     4.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           800 AM                                     
 LOWEST     36           200 PM                                     
 AVERAGE    60                                                       

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

                                                                     
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   45        63      2001                    
                                             1990                    
 MINIMUM TEMPERATURE (F)   25       -10      1979                    

                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY 10 2020......SUNRISE   707 AM EST   SUNSET   541 PM EST   
FEBRUARY 11 2020......SUNRISE   706 AM EST   SUNSET   542 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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