Motorists are being warned to take care on roads overnight as more snowfall and ice is forecast for Devon.
Most of the county was affected by waves of snow throughout Friday, with about 4in (10cm) falling in Honiton.
Operations manager at Devon County Council Chris Cranston said: "My advice would be for people not to travel overnight."
The county council said it was continuing to treat roads and had used 1,000 tons of salt during the day.
Mr Cranston said: "We will be working through our response plan, deploying resources and have gritters constantly running.
"In the morning it's a question of listening to the weather forecast and seeing what the conditions are likely to be."
A relay system of snow ploughs operated throughout the day keeping key routes such as Telegraph Hill on the A380 and Haldon Hill on the A38 clear.
BBC Travel reported icy conditions had caused problems on the A38 at Dean Prior and the A3052 in east Devon and police closed the North Devon Link Road due to hazardous driving conditions before 1000 GMT.
The council currently has 15,000 tons of salt in reserve which Mr Cranston said would be adequate for most winters but "we're not in normal times at the moment" so "we do need to keep a careful eye on it."
The Met Office has warned that snow showers are expected to continue during Friday night with widespread ice forming on untreated surfaces.
Exeter Airport was temporarily closed during the morning after 4cm of snow fell within an hour on the runway, with many flights still being cancelled or delayed.
Sixty schools were closed around the county bringing an early start to the Christmas holidays for many pupils.