Most of Clutha was coated in snow yesterday, with up to 25cm in high areas such as Mahinerangi.
A combination of hail and snow on Sunday night caused slippery roads for motorists and closed parts of several state highways.
In South Otago, the Manuka Gorge on SH8, between Milton and Lawrence, proved to be dangerous yesterday with several vehicles sliding off the carriageway.
Constable Robert Wallace, of Lawrence, said one person was taken to hospital with minor injuries, and the Lawrence ambulance was involved in a minor accident while attending one of the crashes.
Three vehicles also left the road north of Lawrence on the Beaumont Hill on Sunday night, he said.
Snow on roads in Balclutha restricted traffic until mid-morning with light rain and sunshine turning snow into slush.
Balclutha District Court trials were postponed until today due to the weather.
The TrustPower Clutha District Community Awards will take place this evening.
Coastal areas did not escape the icy blast, with more than 2cm of snow settling on the beach at Toko Mouth yesterday.
West Otago had up to 17cm of snow around Heriot and Tapanui, with 15cm at Moa Flat.
Snowploughs cleared roads yesterday.
The Clutha District Council urged extreme caution on roads in the district as some were still very icy and 4WDs were essential in all higher areas.
In Southland, roads between Invercargill and Gore were closed for most of the day yesterday with State Highway 1 reopening mid-afternoon.
