614  
CDUS41 KLWX 042133  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
533 PM EDT TUE JUN 04 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 4 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 90 3:27 PM 91 2020 80 10 77  
MINIMUM 62 4:34 AM 40 1976 59 3 54  
1977  
AVERAGE 76 69 7 66  
 
PRECIPITATION (IN)  
TODAY 0.00 1.63 2008 0.15 -0.15 T  
MONTH TO DATE T 0.59 -0.59 T  
SINCE JUN 1 T 0.59 -0.59 T  
SINCE JAN 1 17.30 17.83 -0.53 9.98  
 
SNOWFALL (IN)  
TODAY MM MM MM 0.0 MM 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 11.7 21.0 -9.3 0.4  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 6 -6 0  
SINCE JUN 1 0 6 -6 0  
SINCE JUL 1 3691 4598 -907 3857  
 
COOLING  
TODAY 11 5 6 1  
MONTH TO DATE 28 20 8 22  
SINCE JUN 1 28 20 8 22  
SINCE JAN 1 211 126 85 96    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 2.6  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 3:00 AM  
LOWEST 42 4:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 92 2021  
MINIMUM TEMPERATURE (F) 59 40 1976  
 
SUNRISE AND SUNSET  
JUNE 4 2024..........SUNRISE 5:45 AM EDT SUNSET 8:32 PM EDT  
JUNE 5 2024..........SUNRISE 5:45 AM EDT SUNSET 8:32 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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