Aviation Digital Data Service (ADDS)

Output produced by METARs form (1759 UTC 12 December 2017)
found at http://aviationweather.gov/adds/metars/
 
KORD 121732Z 1218/1324 31013G21KT P6SM SCT035 SCT200 
     FM122300 30009KT P6SM BKN100 
     FM130700 20006KT P6SM SCT045 OVC060 
     FM131100 17010KT P6SM SCT030 OVC040 
     TEMPO 1312/1316 2SM -SN SCT020 OVC030 
     FM131600 21012G18KT P6SM SCT030 OVC060 
     FM131800 23013G19KT 6SM -SN OVC025 
     TEMPO 1319/1321 1 1/2SM -SHSN SCT015 OVC020 
     FM132100 30014G24KT P6SM OVC018