New data shows Young was one of the most storm affected towns in South East NSW and the state's South Coast during the past financial year.

NRMA Insurance said its figures showed NSW had experienced its most intense storm season in years.

It said 61 per cent of its home insurance claims in NSW that 12 months were due to storm damage - the highest proportion since 2014-15.

The top five hardest-hit areas in the region were Merimbula, Young, Goulburn, Crookwell and Harden.

Mr Bailey said Young during February this year experienced some of its worst storms in years.

One storm during February dumped close to 80mm of rain in less than an hour, according to records at the Bureau of Meteorology's gauge at the Young Airport.

The heavy rain also brought widespread blackouts, with hundreds of people around Young, Boorowa, Bribbaree and Milvale without power for hours.

"I was looking at the Bureau of Meteorolgy forecast and they are saying the same as the 12 months. It's going to be hotter without a lot of potential for large scale flooding," he said.

"It's the intense storms we have to look out for. February was one of the worst in Young and we didn't have a lot of warning which was the scary thing.

"Hopefully we get more warning, that one in February really had us scrambling."

Mr Bailey encouraged residents to secure any loose backyard items, trim trees near houses and sheds and clean gutters.

"Cleaning gutters is one of the big things people may not realise they should do. Rain goes into the eaves and into the house," he said.

"Get things like trampolines secured they can end up in power lines or on a roof."

Car insurance claims in NSW after storms - including for hail damage - was more than double the long-term average during the past financial year, data shows.

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