Residents affected by storm and flooding damage in February and March have already claimed around $25 million through their insurers.
Insurance Council chief executive Tim Grafton said the most damaging storm occurred between March 4 and 5 when $21.9 million of damage occurred.
While the storm system also hit Wellington and the Hawkes Bay, most of the damage, totalling $19.6 million, was in Canterbury where there was extensive flooding in Christchurch.
"Most of the damage in Canterbury was to home and contents with $13.4 million in losses followed by damage to commercial property ($2.8 million) and motor vehicles ($2.5 million),'' he said.
A less damaging storm also hit Canterbury on February 23 when $3.3 million of damages were claimed on insurance. The storm was marked by a hailstorm and reports of tornado damage, Mr Grafton said.