Global warming NIWA declares that the previous summer, which had an average temperature of 18.8 C, was the hottest in New Zealand history. Weather: It's official! Niwa declares it the hottest summer on record © The New Zealand Herald Sources: The New Zealand Herald
/arc-anglerfish-syd-prod-nzme.s3.amazonaws.com/public/4GNQK7CQENH4RAKH2VXSQWZPQA.jpg "Weather: It's official! Niwa declares it the hottest summer on record © The New Zealand Herald")