Aviation Digital Data Service (ADDS)

Output produced by METARs form (0610 UTC 23 August 2017)
found at http://aviationweather.gov/adds/metars/
 
KDCA 230539Z 2306/2406 31005KT P6SM BKN090 
     FM230800 26004KT P6SM BKN090 
     FM231200 33005KT P6SM BKN050 
     FM232100 34006KT P6SM SCT250