Season Blizzards Dumps on South Dakota Posted by Todd D. Epp at 12:04 AM Image via Wikipedia On this date, April 20, 1992, a major blizzard that hit the Black Hills , dumping nearly three feet of snow in some areas and packing 60+ mph winds ended. Source: http://www.crh.noaa.gov/fsd/?n=fsdtrivia04 A blizzard