
© Met ServiceThe ice halo was captured by the MetService's camera at Mt Cook.
A rare "ice halo" visible around the moon overnight coincided with a big chill, with temperatures dropping below freezing point in both the North and South Islands.
Ashburton was the coldest spot on Sunday morning, with an icy temperature of -3.4C between 5am and 6am. Christchurch dropped to -2.9C, while in the North Island, both Masterton and Hamilton were -2.7C. "They'll be waking up to a really cold start," MetService meteorologist April Clark said. Hamilton was probably having the worst start to the day, she said.
"They have a little bit of fog around as well - they cool and get frost, and they also get fog, which is a bit miserable." Temperatures dropped even lower on Saturday night in Queenstown, dipping to -3.6C between 9 and 10pm when the skies were clear, before "heating up a little bit" when cloud set in. "It's really a huge difference when you get cloud - it's just like a little blanket over everyone."
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