In 1959, a storm dumped a huge amount of snow on Mount Shasta, Calif. The 189 inches (4.8 m) of snow recorded at the Mount Shasta Ski Bowl is the largest snowfall from a single storm in North America [source: NOAA]. However, many believe that 1993's "Storm of the Century" has eclipsed this mark in terms of the actual volume of snow, due to heavy snowfall across such a massive area.
Oddly enough, the storm didn't have much of an effect on locals. For one thing, residents of the Mount Shasta area were used to big snowstorms, so aside from some delays while they waited for plows to clear the wet, heavy snow, it didn't affect them much. Also, the bulk of the snow fell away from the communities of Weed and Mount Shasta City, covering unpopulated mountainous areas. Few people at the time even noted that the town had broken the single storm snowfall record [source: College of the Siskiyous].