Temperatures across Britain plunged to levels colder than in Iceland last night as the coldest night of the year set in for most people across the country.
England, Wales, and Northern Ireland experienced their coldest nights of 2014 with temperatures of -7.6C, -5.6C and -8.1C respectively.
Scotland faced a wintry -6.7C, though this did not break the record of -8.9C set in Aberdeenshire early in December.
The big freeze means Britain was significantly colder than Iceland overnight. The Nordic country sits in the border of the Arctic circle and is plunged into perpetual darkness during the winter.
Iceland’s capital of Reykjavík, which lies just outside the Arctic Circle, saw lows of 6C at 3am GMT last night, significantly warmer than all of Britain.
Large parts of the north are covered in snow, with heavy frost covering the ground as the sun rose even in central London.
The Met Office has issued cold weather alerts across the country. The entire North and Midlands faced an amber warning, the highest the Met Office can give without declaring a national emergency.
UK winter weather
UK winter weather
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Cars make their way through the snow in the Loxley area of Sheffield
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A cyclist makes his way through a blizzard in Durham
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Heavy snow falls on the A690 into Durham
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Picture of snow taken through a window of a plane stuck at Manchester Airport
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A woman walks in heavy snow in the Loxley area of Sheffield
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Heavy snow in the Loxley area of Sheffield
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A snow covered Durham Cathedral
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Snow covered graves at St Joseph's Church in west Belfast, as an orange weather alert is announced in Northern Ireland
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Sheep in snow, in the Glens of Antrim, as an orange weather alert is announced in Northern Ireland
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Snow Blizzards on the A9 road near Blackford, Perthshire as snow blizzards sweep across the country
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A cyclist on Dumbarton Road in Stirling during a snow blizzard
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A dog walker walks through the Kings Knot area below Stirling Castle during a snow blizzard
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Vehicles driving down Dumbarton Road in Stirling during a snow blizzard
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Scotrail train travels through snow covered country side near Lenzie, Scotland
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A man digs his car out of the snow near Shaw, northern England
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A dog walker in the snow on the Pennine hilltops near Reeth in the Yorkshire Dales, as many parts of the UK were on snow alert with wintry showers threatening to disrupt travel
John Giles/PA Wire
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A snow plough on the A93 near Guildtown, as snow brings fresh disruption to parts of the UK
Danny Lawson/PA Wire
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Andrew Millington (left) and Stephen Peacock walk near the Spittal of Glenshee as snow brings fresh disruption to parts of the UK
Danny Lawson/PA Wire
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Snow covers the A68 near Corbridge in Northumberland, as many parts of the UK were on snow alert with wintry showers threatening to disrupt travel
Owen Humphreys/PA Wire
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A car makes its way through snowfall in Gortin near Omagh, as many parts of the UK were on snow alert with wintry showers threatening to disrupt travel
Niall Carson/PA Wire
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Sleaford Lincolnshire in the snow Boxing Day 2014
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Snow at Liverpool's John Lennon Airport, which closed temporarily on Friday night
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Maisy Byrne, aged nine, (left) and sister Lulu Byrne, aged seven, have fun as snow falls on Boxing Day in Gateacre, Liverpool
Peter Byrne/PA Wire
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A decorative snowman surrounded by real snow outside a house in Eccleston Park, near Prescot, Merseyside
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Maisy Byrne, 9, left, and sister Lulu Byrne, 7, have fun as snow falls in Gateacre, Liverpool
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Snowfall in Uttoxeter, Staffordshire on Boxing Day
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A man pushing a motorcycle through snow in Newtown Linford, Leicestershire on Boxing Day
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On the M6 near Sandbach
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Snow swirling around the grounds of Lichfield Cathedral on Boxing Day
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Referee Mark Clattenburg during the Premier League football match between Manchester City and West Bromwich Albion at The Hawthorns in the Midlands
The forecasters said social and healthcare services should be mobilised to make sure high-risk groups including pensioners were not in danger.
The South West, South East face the slightly less severe yellow warning, meaning there was a 75% chance of freezing conditions.
Although there is not expected to be further major snowfall in the coming days, the RAC has warned motorists to be careful in icy conditions on the roads.
Northern Ireland’s low came in Katesbridge, County Down, and was nearly a full two degrees lower than the previous low of -6.2C.
England’s lowest temperature came in Oxfordshire and was about one degree lower than the previous 2014 record of -6.8C.
Forecasters have warned of temperatures just as cold across Britain over the next few days.