Aviation Digital Data Service (ADDS)

Output produced by METARs form (1440 UTC 21 April 2015)
found at http://aviationweather.gov/adds/metars/
 
KDCA 211130Z 2112/2212 29007KT P6SM SCT080 
     FM211500 29011G20KT P6SM FEW070 
     FM212100 25013G22KT P6SM SCT070 
     FM212300 24009KT P6SM FEW070 
     FM220800 22006KT P6SM BKN090