When I returned to Oregon after three plus years in Florida, I found myself looking upward, a lot. There’s nothing taller than a palm tree in Florida. 100-plus foot tall trees are everywhere, here. And it rained in buckets in the summer, where I was. Apples and oranges, as far as fires go.
Yes, in the South it typically rains more in the summer than in the winter. The West Coast usually gets rain and snow in the winter and varying degrees of drought during the summer. It is a recipe for wildfires if the forests are not managed.