After weeks of mild weather winter came in with a bang last night with widespread frost across the county.
Snow has been reported on high grounds throughout Wicklow.
Gardai are warning motorists to drive with caution, a number of minor incidents were reported this morning.
Gardai are also warning drivers on the M11 to keep their distance following a large increase in collisions this week, Sergeant John Fitzpatrick has pleaded with drivers to obey the two second rule. Stating that drivers are driving too close to one another.
The M11 was closed for almost two hours on Wednesday evening following in a collision north of Rathnew.
The N81 was closed for a time on Thursday night due to a collision.
There has also been an increase in drivers using the hard shoulder between Glen of the Downs and Kilmacanogue, Gardai say they will be clamping down on motorists using the hard shoulder.