freebeer
Most benches in one particular town near me are disassembled and put into storage between (this year) a few days past Reformation day, usually to reappear around Easter.
With a few exceptions that vary year to year (this year the nearest bench remains, yay).
Other nearby towns leave benches up the entire year, allowing them to suffer the ravages of winter weather.
I would not be surprised if the same is true here.