AFOS product CLIIAD
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CDUS41 KLWX 210522
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
122 AM EDT SUN AUG 21 2022

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 20 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         88   3:34 PM 104    1983  86      2       84        
  MINIMUM         64   5:56 AM  47    1964  65     -1       71        
                                      1976                           
                                      1998                           
  AVERAGE         76                        76      0       78     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          2.17 1963   0.11  -0.11     0.31     
  MONTH TO DATE    2.05                      2.28  -0.23     3.60     
  SINCE JUN 1     10.03                     10.73  -0.70     9.68     
  SINCE JAN 1     27.25                     27.97  -0.72    23.26     

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 JUN 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        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE JUN 1      0                        13    -13        6        
  SINCE JUL 1      0                         0      0        0        

 COOLING                                                              
  YESTERDAY       11                        10      1       13        
  MONTH TO DATE  251                       229     22      257        
  SINCE JUN 1    904                       845     59      971        
  SINCE JAN 1   1033                       951     82     1080        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (180)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     S (180)       
  AVERAGE WIND SPEED     5.0                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           3:00 AM                                      
 LOWEST     45           3:00 PM                                      
 AVERAGE    71                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   86        96      1962                      
 MINIMUM TEMPERATURE (F)   65        47      1976                      


SUNRISE AND SUNSET                                                    
AUGUST 21 2022........SUNRISE   6:29 AM EDT   SUNSET   7:56 PM EDT     
AUGUST 22 2022........SUNRISE   6:30 AM EDT   SUNSET   7:55 PM EDT     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$