Temperatures plunged across the country overnight with the north Montgomeryshire lake near Llanfyllin recording 7cm of snow.
Snow and ice brought treacherous conditions to many parts of the country, with the cold snap forecast to bite into the new year.
Bands of rain, sleet and snow were moving across the UK on Tuesday morning, bringing dangerous driving conditions, particularly around Manchester, Gloucestershire, Wiltshire and Berkshire, the Met Office said.
Met Office meteorologist Alex Burkill said the agency lacks a comprehensive ability to measure snow depth and anecdotal reports online of 5cm to 10cm of snow across many parts of the UK were likely to be accurate.