Temperatures fell as low as -11C overnight in parts of the UK as the cold snap continues.
The frigid temperature was recorded at Loch Glascarnoch in the Scottish Highlands, while the mercury dipped to 0C in London, according to the Met Office.
Temperatures fell below -7C across much of the country, with lows of -6C at Trawsgoed in Ceredigion, Wales and -4C at Rostherne, Cheshire.
But the Met Office has told Londoners that the Arctic snap that has gripped the country should end by the weekend, with temperatures set to jump to 9C on Saturday.
Forecaster Simon Partridge said the chill stemmed primarily from “a little ridge of high pressure moving across the UK overnight”, adding “the main difference between that and previous nights is the winds are a lot lighter”.
Mr Partridge said that much of the country will see frost in the morning but that later in the day there is expected to be widespread sunshine.
He said: “Friday is really the end of the really cold weather as things turn back to average by the time we get into the weekend.”
It comes after hundreds of schools were forced to close, roads were disrupted and homes were left without power because of snow.
About 100 schools closed in northern Scotland on Thursday, while in Wales, 36 were closed in Pembrokeshire, 14 in Carmarthenshire and seven in Ceredigion.
In North Yorkshire, 33 schools were closed while eight were listed as fully closed in East Yorkshire.
The Met Office has a spate of yellow ice warnings in place across the UK on Friday morning, including north, east, south-east and south-west England, northern and south-eastern areas of Scotland and north and west Wales.
London saw its first snow of the season on Wednesday with footage on social media showing snowfall from Twickenham to Cricklewood.
The Mayor of London Sir Sadiq Khan activated the first Severe Weather Emergency Protocol (SWEP) of the season shortly after the snowfall began to protect rough sleepers as temperatures head towards 0C.
© The Standard Ltd