AFOS product CLIIAD
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CDUS41 KLWX 080524
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1224 AM EST THU DEC 08 2022

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 7 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2022


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         55   4:20 PM  77    1998  49      6       43        
  MINIMUM         50  11:59 PM   1    2002  31     19       28        
  AVERAGE         53                        40     13       36     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.03          2.14 2011   0.11  -0.08     0.00     
  MONTH TO DATE    0.40                      0.80  -0.40      T       
  SINCE DEC 1      0.40                      0.80  -0.40      T       
  SINCE JAN 1     36.21                     40.74  -4.53    34.50     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           1.6  1969   0.1   -0.1      0.0      
  MONTH TO DATE    0.0                       0.5   -0.5      0.0      
  SINCE DEC 1      0.0                       0.5   -0.5      0.0      
  SINCE JUL 1      T                         0.8   -0.8       T       
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       12                        25    -13       29        
  MONTH TO DATE  164                       172     -8      133        
  SINCE DEC 1    164                       172     -8      133        
  SINCE JUL 1    998                      1072    -74      859        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1   1376                      1231    145     1480        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     N (340)       
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     N (340)       
  AVERAGE WIND SPEED     3.0                                        


SKY COVER                                                             
  AVERAGE SKY COVER 1.0                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT RAIN                                                          
  FOG                                                                 
  FOG W/VISIBILITY <= 1/4 MILE                                        


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           8:00 PM                                      
 LOWEST     89          12:00 AM                                      
 AVERAGE    95                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   48        76      1980                      
 MINIMUM TEMPERATURE (F)   30        13      2002                      


SUNRISE AND SUNSET                                                    
DECEMBER  8 2022......SUNRISE   7:16 AM EST   SUNSET   4:47 PM EST     
DECEMBER  9 2022......SUNRISE   7:17 AM EST   SUNSET   4:47 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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