A rare and historic October Nor'easter brought very heavy snow to portions of southern New England on Saturday October 29. Snowfall accumulations of one to two feet were common in the Monadnocks, Berkshires, Connecticut Valley, and higher elevations in central Massachusetts. Up to 31 inches of snow was reported at Jaffrey, New Hampshire and Plainfield, Massachusetts. Minor accumulations were even reported down to the south coast as the rain changed to a period of snow late Saturday night before ending. The accumulation of the heavy wet snow on trees and power lines resulted in widespread tree damage and power outages across many communities in Connecticut, Massachusetts and southern New Hampshire.

The precipitation started as mainly snow early Saturday afternoon across the interior of southern New England, although a brief period of rain at the onset was common across the lower elevations. Several hours of heavy snow occurred from mid afternoon through late evening on Saturday October 29. Snowfall rates reached 3 inches per hour for several hours in the Berkshires and Monadnocks as a nearly stationary band of heavy snow set up across this region. The snow tapered off just after midnight Saturday night in western New England with the last of the precipitation exiting eastern New England Sunday morning. This storm also brought damaging winds to Cape Cod and the islands with wind gusts up to 70 mph occurring early Sunday morning October 30 as well as minor to moderate coastal flooding to east coastal Massachusetts during the high tide early Sunday morning.

Low pressure tracked northeast from the North Carolina coast Saturday morning, rapidly strengthening as it passed well south of Nantucket Saturday evening. As the storm intensified, colder air from aloft was drawn into New England resulting in heavy snow in the interior.