Aviation Digital Data Service (ADDS)

Output produced by METARs form (2136 UTC 22 October 2014)
found at http://aviationweather.gov/adds/metars/
 
KDCA 222050Z 2221/2318 33017KT 6SM -SHRA OVC025 
     FM222200 33017KT P6SM SCT015 OVC025 
     FM230100 33017KT P6SM SCT025 BKN045