AFOS product CLIIAD
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CDUS41 KLWX 290522
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
122 AM EDT FRI MAY 29 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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         85   3:40 PM  90    1991  78      7       90        
                                      2012                           
                                      2019                           
  MINIMUM         70   2:29 AM  37    1994  55     15       65        
  AVERAGE         78                        67     11       78     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.07          2.16 1982   0.15  -0.08     0.36     
  MONTH TO DATE    2.32                      4.09  -1.77     4.72     
  SINCE MAR 1      9.87                     10.94  -1.07    12.09     
  SINCE JAN 1     16.44                     16.36   0.08    19.55     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      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        0                         2     -2        0        
  MONTH TO DATE  175                       125     50       60        
  SINCE MAR 1   1005                      1107   -102      942        
  SINCE JUL 1   4149                      4697   -548     4447        

 COOLING                                                              
  YESTERDAY       13                         4      9       13        
  MONTH TO DATE   54                        60     -6      125        
  SINCE MAR 1     57                        80    -23      147        
  SINCE JAN 1     57                        80    -23      147        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (190)       
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SE (140)       
  AVERAGE WIND SPEED    10.5                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.9                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           8:00 AM                                      
 LOWEST     61           4:00 PM                                      
 AVERAGE    77                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   79        97      1969                      
 MINIMUM TEMPERATURE (F)   56        40      1997                      


SUNRISE AND SUNSET                                                    
MAY 29 2020...........SUNRISE   5:47 AM EDT   SUNSET   8:28 PM EDT     
MAY 30 2020...........SUNRISE   5:47 AM EDT   SUNSET   8:28 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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