949  
CDUS41 KLWX 112129  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
528 PM EDT MON JUN 11 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 11 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 65 230 PM 95 2016 83 -18 91  
MINIMUM 58 511 AM 40 1972 60 -2 64  
AVERAGE 62 71 -9 78  
 
PRECIPITATION (IN)  
TODAY 0.74 1.07 2004 0.13 0.61 0.00  
MONTH TO DATE 2.97 1.52 1.45 0.18  
SINCE JUN 1 2.97 1.52 1.45 0.18  
SINCE JAN 1 23.62 18.34 5.28 19.27  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 11.9 22.0 -10.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 3 1 2 0  
MONTH TO DATE 4 13 -9 6  
SINCE JUN 1 4 13 -9 6  
SINCE JUL 1 4565 4715 -150 3858  
 
COOLING  
TODAY 0 7 -7 13  
MONTH TO DATE 61 64 -3 45  
SINCE JUN 1 61 64 -3 45  
SINCE JAN 1 253 156 97 182    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 8.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 500 AM  
LOWEST 87 200 PM  
AVERAGE 94  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 96 1986  
MINIMUM TEMPERATURE (F) 60 44 1980  
1972  
 
 
SUNRISE AND SUNSET  
JUNE 11 2018..........SUNRISE 544 AM EDT SUNSET 835 PM EDT  
JUNE 12 2018..........SUNRISE 544 AM EDT SUNSET 836 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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