AFOS product CLIIAD
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CDUS41 KLWX 280528
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
128 AM EDT MON AUG 28 2023

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 27 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         91   1:51 PM 100    1987  85      6       90        
  MINIMUM         73   6:38 AM  46    1969  64      9       70        
  AVERAGE         82                        74      8       80     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.98 1971   0.12  -0.12     0.00     
  MONTH TO DATE    1.84                      3.09  -1.25     2.10     
  SINCE JUN 1      9.23                     11.54  -2.31    10.08     
  SINCE JAN 1     19.21                     28.78  -9.57    27.30     

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      5                        13     -8        0        
  SINCE JUL 1      0                         0      0        0        

 COOLING                                                              
  YESTERDAY       17                        10      7       15        
  MONTH TO DATE  337                       299     38      340        
  SINCE JUN 1    992                       915     77      993        
  SINCE JAN 1   1066                      1021     45     1122        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SE (140)       
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (170)       
  AVERAGE WIND SPEED     4.9                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.8                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82          11:00 PM                                      
 LOWEST     38           3:00 PM                                      
 AVERAGE    60                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   85        98      1993                      
 MINIMUM TEMPERATURE (F)   64        44      1986                      


SUNRISE AND SUNSET                                                    
AUGUST 28 2023........SUNRISE   6:35 AM EDT   SUNSET   7:47 PM EDT     
AUGUST 29 2023........SUNRISE   6:36 AM EDT   SUNSET   7:45 PM EDT     


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




$$