391  
CDUS41 KLWX 022122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT TUE OCT 2 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 2 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 84 106 PM 89 1986 73 11 74  
MINIMUM 65 603 AM 32 1998 49 16 40  
1997  
AVERAGE 75 61 14 57  
 
PRECIPITATION (IN)  
TODAY 0.00 2.35 2012 0.10 -0.10 0.00  
MONTH TO DATE 0.00 0.21 -0.21 0.00  
SINCE SEP 1 7.36 4.13 3.23 1.75  
SINCE JAN 1 50.62 32.13 18.49 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 6 -6 8  
MONTH TO DATE 0 11 -11 16  
SINCE SEP 1 13 67 -54 56  
SINCE JUL 1 13 69 -56 57  
 
COOLING  
TODAY 10 2 8 0  
MONTH TO DATE 18 4 14 0  
SINCE SEP 1 259 145 114 155  
SINCE JAN 1 1443 1161 282 1216    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 7.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 65 100 PM  
AVERAGE 83  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 86 2007  
2002  
MINIMUM TEMPERATURE (F) 49 30 2003  
1974  
 
 
SUNRISE AND SUNSET  
OCTOBER 2 2018.......SUNRISE 707 AM EDT SUNSET 651 PM EDT  
OCTOBER 3 2018.......SUNRISE 708 AM EDT SUNSET 649 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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