The clean-up bill following storms Dennis and Ciara is set to top £360m, according to insurers.
The Association of British Insurers (ABI) said initial estimates show the industry expects to make payments of £363m to those customers who have been affected.
Some £214m is going on flood claims and £149m is being used to repair windstorm damage.
The last time several large storms struck in quick succession was in December 2015, when Eva, Frank and Desmond caused insured damage valued at £1.3bn, the ABI said.
It also put the cost of flooding in parts of south Yorkshire and the Midlands in November last year at over £110m.
Flood claims breakdown:
Windstorm claims breakdown:
Mark Shepherd, the ABI's assistant director, head of general insurance policy, said: "Insurers' first priority when bad weather strikes is always to help customers recover from the traumatic experience as quickly as possible.
"With some properties still under water, making emergency payments and arranging emergency alternative temporary accommodation or trading premises is very much a live issue.
"When the flood waters recede, the hard work begins.
"Insurers and loss adjusters will continue working around the clock to ensure homes and businesses are fully dried out, so that repairs can start as soon as possible, and people can get their lives back together."