Power has been restored throughout the storm-hit areas of Auckland, the Coromandel, Wairarapa and Whanganui.
Several thousand homes had been without electricity since the storm brought slips, flooding and downed power lines from Tuesday.
Some 6600 properties had their electricity cut off at some point during the night.
MetService is predicting more rain overnight and has issued severe weather warnings for eastern Marlborough and Northland.
Emergency services and roading contractors spent Wednesday clearing slips, flooding and debris in the wake of the wet and windy weather.
Fire Service shift manager Scott Osmond says firefighters were called out to 175 weather-related incidents, most of them involving trees falling onto roads, power lines, cars and buildings. About 150 trees came down during the night.
Mr Osmond says there were a small number of cases of roofs lifting but there was no serious structural damage to buildings.
The callouts were mainly to Auckland, Coromandel, the Hauraki Plains, Tauranga and Hamilton.
Police say they had to evacuate several houses in Tolaga Bay on the East Coast because of flooding about 11.30pm on Tuesday.
Auckland's Orewa Beach was closed to the public on Wednesday morning, after tidal surges on Tuesday night caused significant erosion.
Police and Civil Defence told residents in the area they could evacuate to a local primary school but none chose to.
Puhoi Beach north of Auckland was flooded, in one of 65 reports of flooding across the Auckland region.