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666 
CDUS41 KLWX 182126
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
526 PM EDT SAT MAY 18 2024

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 18 2024...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         63   3:59 PM  91    1987  75    -12       70        
  MINIMUM         61   8:11 AM  33    1973  54      7       46        
  AVERAGE         62                        64     -2       58     

PRECIPITATION (IN)                                                    
  TODAY            0.64          3.13 1988   0.15   0.49     0.00     
  MONTH TO DATE    3.11                      2.68   0.43     0.75     
  SINCE MAR 1      8.74                      9.65  -0.91     5.62     
  SINCE JAN 1     16.19                     15.20   0.99     9.25     

SNOWFALL (IN)                                                              
  TODAY            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                         4.0   -4.0       T       
  SINCE JUL 1     11.7                      21.0   -9.3      0.4      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            3                         3      0        7        
  MONTH TO DATE   48                        84    -36       92        
  SINCE MAR 1    727                      1051   -324      875        
  SINCE JUL 1   3691                      4561   -870     3839        

 COOLING                                                              
  TODAY            0                         3     -3        0        
  MONTH TO DATE   44                        35      9       16        
  SINCE MAR 1     88                        57     31       61        
  SINCE JAN 1     91                        57     34       61        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (160)       
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SE (150)       
  AVERAGE WIND SPEED     3.9                                        


SKY COVER                                                             
  AVERAGE SKY COVER 1.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           3:00 AM                                      
 LOWEST     81          10:00 AM                                      
 AVERAGE    87                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   76        92      1996                      
                                             1997                     
 MINIMUM TEMPERATURE (F)   54        36      2002                      


SUNRISE AND SUNSET                                                    
MAY 18 2024...........SUNRISE   5:54 AM EDT   SUNSET   8:19 PM EDT     
MAY 19 2024...........SUNRISE   5:53 AM EDT   SUNSET   8:20 PM EDT     


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




$$