Deadly snowstorms in Japan have caused insured losses of about $US585 million ($643.22 million), according to Impact Forecasting’s Global Catastrophe Recap for last month.

The storms, which killed 37 people and injured more than 2750, took worldwide insurance payouts to more than $US1 billion ($1.09 billion) for the period, the Aon Benfield subsidiary says.

In the US a mid-month winter storm killed at least 25 people and damaged more than 50,000 structures. Insurers estimated losses at more than $US250 million ($274.54 million).

Earlier, a separate storm killed at least nine people across eastern US, generating insured losses of more than $US150 million ($US164.71 million).

Severe winter weather also hit China, while windstorms struck vast areas of Europe.

Windstorm Tini caused extensive damage across Ireland and the UK, and flooding across England, Wales and Ireland, causing insured losses of $US685 million ($756.4 million).