Aviation Digital Data Service (ADDS)

Output produced by METARs form (1008 UTC 04 December 2016)
found at http://aviationweather.gov/adds/metars/
 
KDCA 040840Z 0409/0506 33007KT P6SM FEW040 BKN250 
     FM041200 36004KT P6SM BKN200 
     FM050300 15004KT 6SM -RA BR OVC050