Rick-the plants that are most susceptable to rot are kept in the tent but I have over the years lost some but not too manyat all. The worst was last June when we were away in AK for a month & I had no control & it rained here almost every day according to others.This year hasn't been bad at all for us.A lot of the heavy storms that you have had went also through NJ but petered out before they reached us.
As for squirrels-my Maltese keeps them hopping

so they haven't been a problem lately at all.The setup is at the back facing south--(this year with a new fence) & above it I have towering spruce trees for the dappled shade.