The coldest temperature in the UK was recorded on Merseyside on Monday night as the reading in Crosby dropped to -17.6C.
On Saturday, the coastal town recorded its lowest temperature since records began in 1983, with a low of -17.5C.
The severe weather conditions are continuing to cause havoc with public transport across the region.
Merseyrail is operating a Sunday service until further notice on its Wirral and Northern Lines.
This means there will only be two trains an hour on the lines.
Northern Rail is also running reduced services through the day, with all trains between Lime Street and Manchester Airport cancelled.
Bus services have also been affected and passengers are being advised to check on travel operators' websites for the latest information.
Liverpool John Lennon Airport remains open, but passengers are advised to check the latest information about flights direct with the airline or tour operator.
Bin collections suspended
On the roads, one lane is closed for the whole length of the M58 in Merseyside and Lancashire because of ice.
Drivers are being urged to take care, especially on minor and side roads which may not have been treated.
All refuse and recycling collections have been suspended in Sefton because of the snow and ice.
Sefton Council said it did not expect collections to resume before Christmas but would be reviewing the situation each day.
A spokesman apologised for any inconvenience.