218  
CDUS41 KLWX 062125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
524 PM EDT SAT OCT 6 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 6 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 72 359 PM 89 2013 71 1 85  
MINIMUM 63 1223 AM 28 1968 47 16 57  
AVERAGE 68 59 9 71  
 
PRECIPITATION (IN)  
TODAY 0.00 1.05 2006 0.11 -0.11 0.00  
MONTH TO DATE T 0.63 -0.63 0.00  
SINCE SEP 1 7.36 4.55 2.81 1.75  
SINCE JAN 1 50.62 32.55 18.07 34.75  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 7 -7 0  
MONTH TO DATE 0 36 -36 25  
SINCE SEP 1 13 92 -79 65  
SINCE JUL 1 13 94 -81 66  
 
COOLING  
TODAY 3 1 2 6  
MONTH TO DATE 47 8 39 9  
SINCE SEP 1 288 149 139 164  
SINCE JAN 1 1472 1165 307 1225    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 400 AM  
LOWEST 84 1000 AM  
AVERAGE 92  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 91 2007  
MINIMUM TEMPERATURE (F) 47 31 1988  
 
 
SUNRISE AND SUNSET  
OCTOBER 6 2018.......SUNRISE 710 AM EDT SUNSET 645 PM EDT  
OCTOBER 7 2018.......SUNRISE 711 AM EDT SUNSET 643 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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