Updated — There’s a huge contrast in morning temperatures across New Zealand today with over 20 degrees separating the north from the south as sub-tropical rain pushes down over northern regions and the cold air left over from last week’s southerly remains stuck over the south.

As of 9:30am there were still a string of -4 to -6C temperatures across Southland, Otago and parts of inland Canterbury, even -7C. 

Meanwhile at the northern end of the country the sub-tropical airflow has places as high as +17C.

Live observations can be found here

@WeatherWatchNZ Inversion layer of cloud/fog rising and falling near Cardrona village has coated these trees in ice. Currently -2 deg here. pic.twitter.com/xQclBZRlLB

— John Wedlake (@Oletinner) June 2, 2018

-4c in Balfour this morning @WeatherWatchNZ pic.twitter.com/SkJfWEIzdt

— Anieka Venekamp (@AniekaNick) June 1, 2018

@WeatherWatchNZ Dead gorse with a sparkly coat of frost here in Dipton. -3°C frost, cloudy and cold. pic.twitter.com/HRJoVqalT8

— Heather Milligan (@MilliganHeather) June 1, 2018

@WeatherWatchNZ -6°c, hardest frost so far this year in Dipton. Frost on the bailage this morning pic.twitter.com/x0O8xTRYYG

— Heather Milligan (@MilliganHeather) June 2, 2018