More than 2.3 million people in at least five states were without power early Monday, a day after the storm moved offshore.
At least five deaths were blamed on the storm.
The Massachusetts Bay Transportation Authority, or MBTA, warned riders that the storm could affect Monday morning commute. And with the chilly temperatures and piles of snow, Halloween plans were touch and go for many cities.
Worchester, Massachussets, asked residents to postpone celebrations until Thursday when temperatures are expected to climb to 60 degrees.
"Safety doesn't take a holiday. Halloween tomorrow night will put families and our youth in harm's way as they negotiate piles of snow and downed limbs," the city said Sunday night.
Early Monday morning, the state's largest utility - Connecticut Light and Power - reported nearly 763,000 customers were still without electricity. A total of about 773,000 households were in the dark in Connecticut.
Elsewhere, about 250,000 customers were without power early Monday in Pennsylvania; 556,000 in Massachusetts' 477,000 in New Jersey; and 288,000 in New York, according to figures from power companies in those states. Thousands also lost power in Maryland, Virginia and West Virginia.FULL STORY