Aviation Digital Data Service (ADDS)

Output produced by METARs form (1350 UTC 22 October 2014)
found at http://www.aviationweather.gov/adds/metars/
 
KDCA 221230Z 2213/2312 35014G23KT 4SM RA BR SCT015 OVC030 
     FM221800 34017G25KT P6SM OVC025 
     FM230100 34018G26KT P6SM BKN040 
     FM230900 31015KT P6SM BKN030