
19-20 April 2006, The Dakotas: An intense spring snowstorm sweeps across the region, dumping up to 5 feet (152 cm) of snow. The heaviest snow falls in the Black Hills, with 59.4 inches (151 cm) at Lead, South Dakota. Bowman, North Dakota, accumulates about 18 inches (45 cm). The storm closes highways including I-94 in North Dakota, cuts power to thousands and is blamed for at least four deaths.
21 April 1958, Montana: Portions of the State experiences spring snowburst. Snowfall accumulations ranged up to 55 inches (140 cm) at Red Lodge, 61 inches (155 cm) at Nye Mine, and 72 inches (183 cm) at Mystic Lake.
23 April 1870, Estherville, Iowa: The Estherville Vindicator uses the term blizzard in reference to a storm that produced heavy snow and high winds in Minnesota and Iowa from 14-17 March 1870. This is the first published application of blizzard as a weather term according to David Ludlum (Early American Winters, Volume II, 1968).
23 April 1885, Denver and Idaho Springs, Colorado:Snow storm in Colorado covers the city of Denver in 23 inches (58 cm) of snow in 24 hours. Storm at Idaho Springs produces 32 inches (81 cm) of snow.