634  
CDUS41 KLWX 072125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
525 PM EDT MON JUN 07 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 7 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 3:38 PM 96 1999 81 10 81  
MINIMUM 72 4:53 AM 45 1977 60 12 57  
AVERAGE 82 70 12 69  
 
PRECIPITATION (IN)  
TODAY 0.00 1.88 1989 0.15 -0.15 T  
MONTH TO DATE 0.03 1.04 -1.01 1.87  
SINCE JUN 1 0.03 1.04 -1.01 1.87  
SINCE JAN 1 13.61 18.28 -4.67 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 9 -9 5  
SINCE JUN 1 0 9 -9 5  
SINCE JUL 1 4152 4601 -449 4154  
 
COOLING  
TODAY 17 6 11 4  
MONTH TO DATE 74 38 36 59  
SINCE JUN 1 74 38 36 59  
SINCE JAN 1 183 144 39 136    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 7.1  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 50 4:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2007  
MINIMUM TEMPERATURE (F) 60 36 1977  
 
SUNRISE AND SUNSET  
JUNE 7 2021..........SUNRISE 5:44 AM EDT SUNSET 8:33 PM EDT  
JUNE 8 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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