Aviation Digital Data Service (ADDS)

Output produced by METARs form (0646 UTC 23 April 2014)
found at http://aviationweather.gov/adds/metars/
 
KPHL 230533Z 2306/2412 29011G20KT P6SM SCT030 BKN070 
     FM231200 30018G29KT P6SM SCT200 
     FM231500 31021G32KT P6SM SCT040 
     FM240000 31015G25KT P6SM SKC 
     FM240500 31015KT P6SM SKC