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817 
CDUS41 KLWX 200525
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
125 AM EDT MON MAY 20 2024

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 19 2024...

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)                                                          
 YESTERDAY                                                           
  MAXIMUM         76   6:05 PM  92    1996  76      0       77        
                                      1997                           
  MINIMUM         58  11:54 PM  36    2002  54      4       47        
  AVERAGE         67                        65      2       62     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.18 1988   0.15  -0.15     0.00     
  MONTH TO DATE    3.16                      2.83   0.33     0.75     
  SINCE MAR 1      8.79                      9.80  -1.01     5.62     
  SINCE JAN 1     16.24                     15.35   0.89     9.25     

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 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                                                              
  YESTERDAY        0                         3     -3        3        
  MONTH TO DATE   47                        87    -40       95        
  SINCE MAR 1    726                      1054   -328      878        
  SINCE JUL 1   3690                      4564   -874     3842        

 COOLING                                                              
  YESTERDAY        2                         3     -1        0        
  MONTH TO DATE   46                        38      8       16        
  SINCE MAR 1     90                        60     30       61        
  SINCE JAN 1     93                        60     33       61        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    NW (320)       
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    NW (310)       
  AVERAGE WIND SPEED     1.9                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.7                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          12:00 AM                                      
 LOWEST     58           5:00 PM                                      
 AVERAGE    76                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   76        93      1996                      
 MINIMUM TEMPERATURE (F)   54        36      2002                      


SUNRISE AND SUNSET                                                    
MAY 20 2024...........SUNRISE   5:53 AM EDT   SUNSET   8:21 PM EDT     
MAY 21 2024...........SUNRISE   5:52 AM EDT   SUNSET   8:21 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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