369  
CDUS41 KLWX 262124  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT SUN AUG 26 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 26 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 87 351 PM 95 2016 86 1 79  
1998  
1993  
MINIMUM 62 142 AM 48 1977 63 -1 59  
AVERAGE 75 74 1 69  
 
PRECIPITATION (IN)  
TODAY 0.00 1.48 1965 0.11 -0.11 0.00  
MONTH TO DATE 4.53 3.02 1.51 3.12  
SINCE JUN 1 19.91 10.67 9.24 13.20  
SINCE JAN 1 40.56 27.49 13.07 32.29  
 
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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 5 15 -10 6  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 10 9 1 4  
MONTH TO DATE 301 278 23 252  
SINCE JUN 1 909 878 31 911  
SINCE JAN 1 1101 970 131 1048    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 6.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 100 AM  
LOWEST 51 200 PM  
AVERAGE 76  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 100 1987  
MINIMUM TEMPERATURE (F) 63 46 1969  
 
 
SUNRISE AND SUNSET  
AUGUST 26 2018........SUNRISE 633 AM EDT SUNSET 749 PM EDT  
AUGUST 27 2018........SUNRISE 634 AM EDT SUNSET 748 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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