People walk and sled through a snowy Prospect Park in Brooklyn, New York, on Saturday, February 9. The powerful storm has knocked out power to 635,000, is blamed for six deaths and dumped more than 2 feet of snow in parts of New England.
People attempt to push a stuck vehicle in the Back Bay neighborhood of Boston on Saturday.
A boy pulls a sled through a snowy Prospect Park in Brooklyn on Saturday.
A boy snowboards in Boston Common on Saturday.
People play in the snow in New York's Central Park on Saturday.
A young woman jumps down from snow piled in front of the Massachusetts State House after posing for a photo in Boston on Saturday.
A man walks along a snow-covered trail in Central Park on Saturday.
A child tubes down snow-covered stairs in Central Park on Saturday.
Emmet's on Beacon Street is covered in snow in Boston on Saturday.
A front loader and truck drive down Warren Street in the Brighton neighborhood on Saturday in Boston.
People walk along the Brooklyn Bridge following a major winter storm on Saturday in New York City. Possible record-setting blizzard conditions are expected with heavy snow warnings in effect from New Jersey through southern Maine.
The sculpture "Double Check" by John Seward Johnson II is seen in Zuccotti Park following a major winter storm on Saturday in New York City on Saturday.
People walk along a street devoid of snow due to ocean flooding Saturday in Winthrop, Massachusetts. Coastal flooding is expected as the storm lingers into the day.
A person walks through the snow in an alley in Hoboken, New Jersey, on Saturday.
Children carry a sled through the Financial District in New York City on Saturday.
Saniyyah Phillips, 8, scrapes the snow off of the top of her father's car in the Brighton neighborhood of Boston on Friday.
Snow covers a sidewalk and building awning in Boston on Saturday.
Josephine Sipayung and her son Eric, 6, sled down an empty street past snow-covered vehicles in Boston on Saturday.
Snow-covered vehicles sit on Commonwealth Avenue in the Brighton neighborhood of Boston on Saturday.
A worker carries a snow shovel across the Ground Zero construction sight on Saturday, February 9 in New York City. A massive blizzard that dumped as much as 3 feet of snow in some parts of the Northeast is heading out to sea, as workers across New York and New England struggle to get airports, trains and highways back online.
A woman walks through the snow as a worker clears snow from a sidewalk in the Back Bay neighborhood of Boston.
Snow gathers on shoes hung from power lines in the Lower East Side of New York City.
Mary Leahy shovels her sidewalk in Medford, Massachusetts.
Paul DeCarlo uses a snow blower to clear the walk in front of his house in Greenfield, Massachusetts.
A man walks through snowy Central Park in New York.
Mike Streeter shovels snow in his front yard as ocean water crashes over the sea wall just feet away on February 9 in Winthrop, Massachusetts.
A pair of cows feed in the snow at Eden Pond Farm in Leyden, Massachusetts.
A child drags his toboggan up a hill in Central Park.
A woman walks in Boston on Saturday.
Phoebe Lightburn, 9, makes a snow angel in Central Park in New York.
A man shovels snow along Winthrop Shore Drive in Winthrop, Massachusetts.
A cyclist rides through the snow in the Back Bay neighborhood of Boston.
Snow blankets Boston on February 9.
Pedestrians shield themselves from blowing snow as a blizzard arrives in the Back Bay neighborhood of Boston on Friday, February 8.
Two women look for a taxi in snow-covered Times Square on February 8.
A food vendor stands under his cart as snow falls in Times Square.
A man shovels snow in front of the Apple store in New York on February 8.
People wait for a taxi in the snow in Times Square.
A pedestrian makes his way through driving snow with a broken umbrella in the Back Bay neighborhood on Friday, February 8 in Boston.
A fashion week attendee makes her way through the snow in high-heeled shoes on Friday.
Snow is cleared in front of Boston Public Library on Friday.
New York City residents cross a street covered in slush on Friday during a storm affecting the Northeast on Friday.
A woman walks through the snow past Copley Square on Friday in Boston. Massachusetts and other states from New York to Maine are preparing for a major blizzard with possible record amounts of snowfall in some areas.
A snowplow sits on the street while snow falls near Boston Common on Friday.
People walk through Times Square as a major winter storm moves in on Friday.
A snowman sits on the duck pond in the Boston Common.
A woman hails a taxi as snow and freezing rain fall over Midtown Manhattan as the city braced for the major storm on Friday.
A man operates a snow blower in the Back Bay neighborhood on Friday in Boston.
Memorial Drive sits empty following a driving ban and state of emergency that was issued in Boston on Friday.
Pedestrians battle wind, snow and sleet in Manhattan on Friday.
People walk through the snow in Boston's Back Bay neighborhood on Friday.
Bicyclists wait at a light in wind, snow and sleet on Friday.
Jeannine Strampel walks through the snow past a statue of Alexander Hamilton along Commonwealth Avenue Mall on February 8.
Jerry Trebino loads sand onto the back of a snowplow February 8 in Wrentham, Massachusetts. The storm is expected to spawn travel headaches for a large swath of the region.
A woman battles her way to the subway in Boston on February 8.
Skiing seems like a good idea as snow begins to fall in Boston on February 8.
A woman struggles with her umbrella in New York's Financial District on February 8. Accumulations of up to a foot of snow are expected in the Big Apple.
Ines Cuadrado, left, and Anne Levine trek along a snow-covered road in Middlefield, Connecticut, on February 8. The heaviest snowfall will extend into Connecticut, Rhode Island and eastern Massachusetts, forecasts say, and governors in all three states have declared states of emergency.
Alfie Times shovels snow from the sidewalk outside the XL Center in Hartford, Connecticut, on February 8.
Ricky Varona copes with the wind and precipitation February 8 in New York.
Tourists brave the high winds in New York's Financial District on February 8.
A sweeper clears snow in front of the Mercedes-Benz Fashion Week tents on February 8 at Lincoln Center in New York.
A man walks along the promenade in Brooklyn Heights as Lower Manhattan stands in a cloud of snow and sleet in the early hours of a major winter storm on February 8.
A man walks across the Brooklyn Bridge in the snow and sleet on February 8.
Cars are lined up outside a gas station in Queens borough of New York on February 8.
A sign bears bad news on a fuel pump in Manhasset, New York, on February 8.
A woman tries to shield herself from wind and precipitation as the beginnings of a large winter storm hits the New York area on February 8.
Snow falls over Lower Manhattan in the early hours of a major winter storm on February 8.
A woman tries to right her umbrella while dealing with wind and precipitation in New York on February 8.
Two people carefully walk across the Brooklyn Bridge in the snow and sleet on February 8.
A satellite image released by the National Oceanic & Atmospheric Administration on February 8, shows a large storm over the Northeastern United States.
A sign warns drivers along Interstate 495 of a blizzard watch in Franklin, Massachusetts, on Thursday, February 7.
People walk through the blowing snow while a blizzard arrives in the Back Bay neighborhood on February 8, 2013 in Boston, Massachusetts.
A man operates a snowblower while a blizzard arrives in the Back Bay neighborhood on February 8, 2013, in Boston, Massachusetts.
- NEW: About 270,000 power customers remain without electricity
- About 400 flights called off Sunday, website says
- At least nine people are killed, including a 14-year-old Boston boy
- The next major winter storm is expected to strike between Colorado and Minnesota
Did you get hit by the blizzard? Send your time-lapse videos and photographs to CNN iReport, but stay safe.
(CNN) -- For millions in the Northeast, the storm is over -- but being snowed in isn't.
The mammoth blizzard that broke records in some areas left its heavy footprint in place Sunday. Temperatures topping out only in the low to mid-30s were too low to melt the piles of snow.
President Barack Obama announced a state of emergency in Connecticut, which got some of the heaviest snowfall. The city of Hamden had a whopping 40 inches.
"Tomorrow the melting will begin as temperatures climb into the 40s," said CNN Meteorologist Alexandra Steele. "But it will come with some issues."
Expect a messy commute Monday morning in hard-hit Boston with a mix of rain and snow, she said.
Boston residents digging their cars out were having trouble finding a place to throw the snow. One shoveler said she was considering taking the train to work instead of trying to drive Monday morning.
Blizzard bombards Northeast
Kids get super excited about snow
Snowball fight breaks out in Boston
"There's a ton of snow and there's nowhere to put it," Lena Berc said. "So it's really frustrating trying to find nooks and crannies."
But on Sunday, some normalcy returned to the roads and skies. At Logan International Airport in Boston, a few dozen flights had landed by midmorning, and a spokesman for the airport said airlines were telling him that they would be back on schedule by the end of the day.
The flight-tracking website Flight Aware listed more than 400 U.S. flights canceled Sunday.
Amtrak announced a limited schedule of train service between Boston and New York, while other routes in the Northeast were still canceled and some were operating on a normal schedule.
As of 4:30 p.m. ET Sunday, about 270,000 power customers were still in the dark, an improvement from the 635,000 without electricity Saturday afternoon.
At least nine deaths in three states and Canada are blamed on the snowstorm, which was spawned by two converging weather systems.
Residents from Pennsylvania to Maine are trying to dig out from as much as 3 feet of snowfall.
Rhode Island Gov. Lincoln Chafee said Sunday he was pleased with the work done in preparation and response to the storm. He told those without power -- more than 38,000 customers -- that help was coming.
"We're working as hard as we can. We're seeing progress every hour," he told reporters in Cranston, Rhode Island.
He added that cleanup had been made easier because many residents had complied with a 24-hour driving ban, allowing crews easier access to trouble spots.
Boston Mayor Thomas Menino said his city was making side streets its priority Sunday, as crews borrowed additional snow-clearing equipment from other cities. He urged drivers to stay home one more day and said schools there would be closed Monday.
Streets left to skiers in Boston snow
Cars stuck in snow on Long Island
Deadly consequences
At least nine people were killed in accidents related to the storm, including five in Connecticut, two in Ontario, Canada, one in New York and one in Massachusetts -- a 14-year-old Boston boy who was helping his father shovel snow.
The boy hopped in the snowed-in family car to warm up, but the engine was running and the exhaust pipe was blocked by snow, causing carbon monoxide to accumulate in the car. Firefighters were unable to resuscitate the boy.
Boston police were investigating another death possibly caused by carbon monoxide, when a man in his early 20s was found dead a vehicle.
The storm by the numbers
The department warned about the dangers of carbon monoxide poisoning from trying to stay warm in a car with exhaust pipes blocked by snow.
In Poughkeepsie, New York, an 18-year-old woman lost control of her car in the falling snow and struck a 74-year-old man walking near the side of the road, police said. He later died from his injuries.
The situation could have turned out worse for some drivers in Long Island, who had to be rescued from cars that were stuck and virtually frozen in place.
Epic mounds of snow
On Interstate 95 in Connecticut, traffic cameras showed most lanes were open underneath a bright afternoon sun, but traffic was extremely light. One single car accident had stymied travelers in the northbound lanes near mile marker 56.
In New York, the Long Island Expressway was closed through 9 p.m. ET in Suffolk County, New York, a Suffolk County Police spokesman said. Kerry Pecorino said the highway was shut down between mile markers 57 and 73.
In Boston, students at the Wentworth Institute of Technology took a series of photographs covering the 26-hour storm.
iReporter Filipe Pereira said Wentworth students, who were expecting to go to class on Monday, had enjoyed the weekend storm, engaging in massive snowball fights and building snowmen everywhere. People were even skiing down one street, he said.
The streets around the small school were still a mess but they were no longer closed.
"People have been going all over the roads with no problem," he said.
Map, timeline of the storm
At its height, the storm heaped snow on Connecticut at a dizzying rate of 4 to 5 inches an hour.
A city official said it snowed so hard that even the snow plows were stuck.
The city has 240 miles of road, Curt Leng said, but only one sixth of the roads were clear. Many others had only one lane open.
"Due to the amount of snow that came down, it seems not even the plows came out," photographer Mia Orsatti told CNN's iReport from Hamden. "The street was a white, wide, soft blanket of snow."
Scott Green posted a photo of his deck in Cromwell -- covered waist-high with snow.
Snowfall in Manhattan reached just under a foot, but heavier accumulations piled up in Long Island, where 27 inches fell in Stony Brook.
"Suffolk County has not seen a winter storm like (this) in years, and the massive amount of snow left behind effectively shut down the entire region," New York Gov. Andrew Cuomo said. "From the moment that it became clear that Suffolk County would bear the worst of the storm's impact on New York, the state dispensed an unprecedented level of resources, equipment, and manpower to support local relief efforts."
And some flooding, too
Coastal areas of Massachusetts and Maine were hit by storm surge and flooding.
Some homes and cars were flooded and several areas reported up to 2 feet of water in areas on the sounds or Atlantic Ocean.
In Nantucket, Massachusetts, water reached several blocks inland. In the town of Hull, people on several streets were asked to leave their homes, and in Sandwich several homes were flooded and the access stairs to the beach were swept away.
The Midwest is next
While the blizzard that pummeled Northeastern states has wandered out over the Atlantic Ocean, trouble now brews for northern Midwest states.
A major winter storm will bring heavy snow and strong winds from northeast Colorado to central Minnesota from Sunday into Monday, the National Weather Service said. Eastern South Dakota could see more than a foot of snow and 50 mph winds, "creating whiteout conditions," the weather agency said.
CNN's Brian Rokus, Jill Martin, AnneClaire Stapleton, Pauline Kim, Erinn Cawthon, Chris Boyette and Christi Wolf contributed to this report.