After a "wetter than normal" but mild May, temperatures in Rotorua are about to drop.
The rainfall for Rotorua reached 212mm last month, 96mm above average, according to data collected at the MetService weather station at Rotorua Airport. The wettest day was May 11 when 64mm fell.
Duty forecaster Angus Hines said much of that rain could be attributed to two events.
"The remnants of tropical cyclone Donna impacted New Zealand on May 11th and 12th, and bought 82mm to Rotorua over two days, and then another low pressure system on the 17th of May bought a further 35mm," he said.
Mr Hines said the city's high rainfall wasn't a surprise as it had been a wet month for most of the North Island.