616  
CDUS41 KLWX 060521  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
121 AM EDT SUN JUN 06 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 5 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92R 3:21 PM 90 2002 80 12 87  
MINIMUM 61 4:41 AM 40 1976 59 2 67  
AVERAGE 77 70 7 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.42 1963 0.15 -0.15 0.57  
MONTH TO DATE 0.03 0.74 -0.71 1.87  
SINCE JUN 1 0.03 0.74 -0.71 1.87  
SINCE JAN 1 13.61 17.98 -4.37 18.39  
 
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 12.0 21.0 -9.0 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 7 -7 5  
SINCE JUN 1 0 7 -7 5  
SINCE JUL 1 4152 4599 -447 4154  
 
COOLING  
YESTERDAY 12 6 6 12  
MONTH TO DATE 41 26 15 42  
SINCE JUN 1 41 26 15 42  
SINCE JAN 1 150 132 18 119    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 32 3:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 92 2005  
MINIMUM TEMPERATURE (F) 59 39 1976  
 
SUNRISE AND SUNSET  
JUNE 6 2021..........SUNRISE 5:45 AM EDT SUNSET 8:33 PM EDT  
JUNE 7 2021..........SUNRISE 5:44 AM EDT SUNSET 8:33 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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