Wattisham in Suffolk saw 15cm of snow fall overnight Saturday and into Sunday morning, while Nottingham awoke to a covering 13cm deep.
The Met office said: "Outbreaks of snow affecting many areas will turn mostly light and showery". Chance of showers in east. Snow will thaw in most places except across highest ground where temperatures remain below freezing. These will be heaviest and most frequent across southwestern areas, so we're talking parts of Wales and the south west of England in particular.
Bitterly cold temperatures will feel as low as minus 10C today, with Met Office warnings in place across nearly the entire country and some areas likely to see up to 25cm of snow.
"The last couple of days have been quite mild across parts of the United Kingdom - we got to around 16C (on Thursday) in Wales - but by (Saturday) all of us will be back to very cold weather".
Forecasters predict it will be brighter, drier, and less cold through the week, with average temperatures for this time of year expected to return.
Richard Leonard, head of road safety at Highways England, said: "Gritters will be out treating our roads around the clock, but it is still important to drive to the conditions when snow is forecast".
"So if you know someone in any of these groups, and most of us do, please keep an eye on them over the coming days make sure they're heating their homes to at least 18C and keeping an eye on the weather forecast".
An amber warning for snow - meaning there is a potential risk to life - remains in place for Cornwall, Devon, Somerset and Dorset until 3am, with up to a foot (30cm) expected in parts of Dartmoor.
These warnings will begin at 4pm on Saturday and are due to extend to 9am on Sunday.
The county is covered by a yellow weather warning issued by the Met Office and it is thought that five buildings were at risk.
An extra warning has been added for the southwest on Sunday between midnight and 6pm.
"And we have plenty of snow showers to start the day".
In France, orange warnings are in force in the north where snowfall is expected until late on Monday evening.
And data from NetWeather shows where the snow has hit the United Kingdom - with Scotland, parts of the north east including Durham and London seeming to be the worst hit.