AFOS product CLIIAD
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CDUS41 KLWX 300522
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
122 AM EDT FRI OCT 30 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 29 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         63   1:24 AM  82    1984  64     -1       65        
  MINIMUM         51  11:59 PM  19    1976  40     11       48        
  AVERAGE         57                        52      5       57     

PRECIPITATION (IN)                                                    
  YESTERDAY        1.68          4.26 2012   0.11   1.57     0.00     
  MONTH TO DATE    3.38                      3.03   0.35     4.25     
  SINCE SEP 1      5.66                      6.95  -1.29     4.66     
  SINCE JAN 1     39.88                     34.95   4.93    34.50     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.6  2011   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE SEP 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1      0.0                       0.0    0.0      0.0      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        8                        13     -5        8        
  MONTH TO DATE  167                       270   -103      177        
  SINCE SEP 1    228                       326    -98      182        
  SINCE JUL 1    228                       328   -100      182        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE   18                        16      2       51        
  SINCE SEP 1    153                       157     -4      289        
  SINCE JAN 1   1405                      1173    232     1524        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (320)       
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NW (330)       
  AVERAGE WIND SPEED     8.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 1.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          12:00 PM                                      
 LOWEST     86           1:00 AM                                      
 AVERAGE    92                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   64        84      2016                      
 MINIMUM TEMPERATURE (F)   40        20      1969                      


SUNRISE AND SUNSET                                                    
OCTOBER 30 2020.......SUNRISE   7:35 AM EDT   SUNSET   6:11 PM EDT     
OCTOBER 31 2020.......SUNRISE   7:37 AM EDT   SUNSET   6:10 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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