There has been a slight thaw in places but more snow in parts of central England.
Temperatures fell to -11C (12F) in parts of Somerset overnight, but no more snow fell.
Temperatures are expected to fall again next week, bringing a risk of more snow and ice.
There is likely to be more snow in eastern parts of Northern Ireland later on Sunday.
BBC: Belfast City Airport runway temporarily closed due to snow
While gritting was being carried out more snow was expected overnight, said North Yorkshire County Council.
BBC: North Yorkshire drivers warned of ice after heavy snowfall
More snow will fall on Sunday, particularly in Northern Ireland, western Scotland and north-west England.
Many roads have been blocked or have slow-moving traffic after more snow fell across the county.
The Met Office said more snow was expected at the weekend, with a high risk of ice.
That made Wales colder than Greenland, with the chill continuing next week, and more snow possible from Tuesday.
More snow is expected across the county throughout the weekend and on Monday, the Met Office has said.
BBC: Cambridgeshire Police warn of ice patches on some roads
Plows made some thoroughfares passable but piled even more snow on cars parked on the city's narrow streets.
The Met Office said more snow would continue to fall, but would gradually ease later in the day.
Some schools in upstate New York, Massachusetts and Connecticut closed, adding a few more snow days to the calendar.
Even more snow had fallen in other places, including 19 inches in Jefferson, about 70 miles southwest of Denver.
Motorists in Herefordshire are being warned to expect more snow as the Met Office issued a yellow weather warning.
More snow is expected over the weekend and a "bitterly cold south-easterly wind" will remain, the Met Office added.
The result, according to Mr Vik, is about 25% more snow per gun.
Forecasters said there may be a few more snow flurries in places and warned of icy stretches on untreated roads.
North, east and south west Wales are in line for more snow overnight and the Met Office has warned of ice.
But with the temperature dropping and still more snow, it was obvious it was not going to be any time soon.
Classes were cancelled in some districts in Massachusetts, Connecticut and upstate New York, adding a few more snow days to the calendar.
The storm could linger a bit longer in parts of eastern Long Island, which might see a bit more snow pile up.
Weather forecasts, however, call for more snow and also rain on Tuesday.
Worcestershire County Council highways manager Jon Fraser said more snow had fallen in the north of the county than they had anticipated.
More snow is possible overnight, especially in the east of the county, and the Met Office is warning of ice on untreated surfaces.
More snow is likely in the Pennines and Scottish and Welsh hills but the Environment Agency has warned about flooding in some areas.
Nebraska, where strong winds caused a train derailment in the eastern part of the state earlier in the day, also was expecting more snow.
It was forecast to head to the northeast on Thursday, bringing strong winds, more snow and the possibility of coastal flooding to New England.
Some parts of the state saw even more snow, and Missouri was not far behind, with accumulations of around a foot in some places.
The spruce and pine trees all around are weighed down, more snow than tree, and the steep mountainside that falls away beneath the farm is hidden behind cloud.
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