588  
CDUS41 KLWX 082123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
523 PM EDT TUE JUN 08 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 8 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 91 3:21 PM 97 2007 81 10 82  
MINIMUM 73 4:35 AM 36 1977 60 13 57  
AVERAGE 82 70 12 70  
 
PRECIPITATION (IN)  
TODAY 0.00 1.71 2014 0.15 -0.15 0.00  
MONTH TO DATE 0.03 1.19 -1.16 1.87  
SINCE JUN 1 0.03 1.19 -1.16 1.87  
SINCE JAN 1 13.61 18.43 -4.82 18.39  
 
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 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  
TODAY 0 1 -1 0  
MONTH TO DATE 0 10 -10 5  
SINCE JUN 1 0 10 -10 5  
SINCE JUL 1 4152 4602 -450 4154  
 
COOLING  
TODAY 17 6 11 5  
MONTH TO DATE 91 44 47 64  
SINCE JUN 1 91 44 47 64  
SINCE JAN 1 200 150 50 141    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 4:00 AM  
LOWEST 50 2:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2011  
MINIMUM TEMPERATURE (F) 60 43 1975  
 
SUNRISE AND SUNSET  
JUNE 8 2021..........SUNRISE 5:44 AM EDT SUNSET 8:34 PM EDT  
JUNE 9 2021..........SUNRISE 5:44 AM EDT SUNSET 8:34 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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