It's the coldest morning of the year for parts of the South Island, with temperatures plunging well below zero in a number of places.
Mackenzie Country weather enthusiast Jordan Langley said he recorded a temperature in Fairlie of -9.7C at 6.15am today.
Overnight Twizel recorded -7.5C and Omarama -8C, he said.
"It's definitely the coldest point of the year. Beforehand our coldest point was in late April with -7 in Twizel and this has definitely broken that mark."
At 7am, Tekapo was the coldest spot with -8.2C, according to MetService.
Twizel hit a low of -7 earlier on Wednesday morning and was not expected to rise above zero until 10am.
Langley said he's struggling to recall temperatures dipping this low at such an early stage.
Dunedin Airport was at -7.1C at 7am, and Alexandra Airport was -6.8C.
It's a very different story in the North Island with Gisborne on 12C, Auckland 7C and Wellington 6.6C, at 7am.
"It's been very, very cold this morning especially in the Mackenzie Country and Central Otago," Langley said.
"Absolutely staggering for May. There is no doubt it will be a mostly cold day today."
Motorists have been warned to watch for black ice while travelling on State Highway 8 between Fairlie and Omarama.
