Aviation Digital Data Service (ADDS)

Output produced by METARs form (0801 UTC 18 April 2014)
found at http://aviationweather.gov/adds/metars/
 
KDEN 180522Z 1806/1912 19012KT P6SM SCT220 
     FM180800 22014KT P6SM FEW220 
     FM181600 20007KT P6SM FEW140 FEW220 
     FM182200 24012KT P6SM FEW140 SCT220 
     FM190300 21010KT P6SM SCT140 BKN200