The combination of heavy, wet snow, leaf-laden trees and frigid, gusting winds brought down limbs and power lines. At least three deaths were blamed on the weather, and states of emergency were declared in New Jersey, Connecticut, Massachusetts and parts of New York.
The 750,000 who lost power in Connecticut broke a record for the state that was set when the remnants of Hurricane Irene hit the state in August. People could be without electricity for as long as a week, Gov. Dannel P. Malloy said Sunday.
"If you are without power, you should expect to be without power for a prolonged period of time," he said Saturday night.
The storm worsened as it moved north, and communities in western Massachusetts were among the hardest hit. Snowfall totals topped 27 inches in Plainfield, and nearby Windsor had gotten 26 inches by early Sunday.
"It's a little startling. I mean, it's only October," said Craig Brodur, who was playing keno with a friend at Northampton Convenience in western Massachusetts.
Along the coast and in such cities as Boston, relatively warm water temperatures helped keep snowfall totals much lower. Washington received a trace of snow, tying a 1925 record for the date. New York City's Central Park set a record for both the date and the month of October with 1.3 inches of snow.
Some inland towns got more than a foot of snow. West Milford, N.J., about 45 miles northwest of New York City, saw 19 inches by early Sunday.