AFOS product CLIIAD
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CDUS41 KLWX 290524
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
124 AM EDT WED APR 29 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 28 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         53  10:36 AM  88    1981  71    -18       74        
                                      1983                           
                                      1990                           
  MINIMUM         39   2:11 AM  32    1972  46     -7       45        
                                      1993                           
  AVERAGE         46                        58    -12       60     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.10          1.68 2002   0.12  -0.02     0.02     
  MONTH TO DATE    4.18                      3.24   0.94     2.82     
  SINCE MAR 1      6.17                      6.62  -0.45     7.37     
  SINCE JAN 1     12.74                     12.04   0.70    14.83     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.0  2001   0.0    0.0      0.0      
                                      2002                           
  MONTH TO DATE    T                         0.3   -0.3      0.0      
  SINCE MAR 1      T                         3.1   -3.1      1.6      
  SINCE JUL 1      2.9                      22.0  -19.1     26.5      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       19                         8     11        5        
  MONTH TO DATE  371                       323     48      182        
  SINCE MAR 1    819                       970   -151      866        
  SINCE JUL 1   3963                      4560   -597     4371        

 COOLING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE    0                        16    -16       19        
  SINCE MAR 1      3                        19    -16       19        
  SINCE JAN 1      3                        19    -16       19        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SW (210)       
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    SW (210)       
  AVERAGE WIND SPEED     2.6                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.9                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          10:00 PM                                      
 LOWEST     57          10:00 AM                                      
 AVERAGE    75                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   71        89      2017                      
 MINIMUM TEMPERATURE (F)   46        32      1987                      


SUNRISE AND SUNSET                                                    
APRIL 29 2020.........SUNRISE   6:14 AM EDT   SUNSET   8:01 PM EDT     
APRIL 30 2020.........SUNRISE   6:12 AM EDT   SUNSET   8:02 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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