I just built it this summer. Rain has taken out quite a few riding days, but the biggest I think was when I was working at the theater 7AM to 11PM or later for 2 weeks straight... Not much time for riding there. I may have ridden, but I had to carry so many tools and stuff with me I needed to use my car.
And now my bike is really broken

It should be up and running some times this week though
And then since I live in Maine, there won't be any riding in the winter. So moped will be stored for many months probably.