171  
CDUS41 KLWX 062133  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
533 PM EDT MON MAY 6 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 6 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 77 359 PM 90 1986 73 4 68  
MINIMUM 57 426 AM 36 1968 48 9 53  
AVERAGE 67 60 7 61  
 
PRECIPITATION (IN)  
TODAY 0.00 0.92 2016 0.13 -0.13 0.20  
MONTH TO DATE 2.20 0.79 1.41 0.24  
SINCE MAR 1 9.57 7.64 1.93 5.58  
SINCE JAN 1 17.03 13.06 3.97 11.97  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 26.5 22.0 4.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 6 -6 4  
MONTH TO DATE 5 39 -34 9  
SINCE MAR 1 887 1021 -134 1198  
SINCE JUL 1 4392 4611 -219 4549  
 
COOLING  
TODAY 2 1 1 0  
MONTH TO DATE 17 6 11 26  
SINCE MAR 1 39 26 13 41  
SINCE JAN 1 39 26 13 46    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1200 AM  
LOWEST 43 400 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 2000  
1986  
MINIMUM TEMPERATURE (F) 48 28 1970  
 
 
SUNRISE AND SUNSET  
MAY 6 2019...........SUNRISE 606 AM EDT SUNSET 807 PM EDT  
MAY 7 2019...........SUNRISE 605 AM EDT SUNSET 808 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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