I don't know what the usual pattern is in Tenn, but in 1988 I moved from New Jersey to California and the change in weather took some getting used to. Like much of the east coast, New Jersey gets some torrential downpours in the summer, usually accompanied by thunder and lightning.
I couldn't believe that in the California is doesn't rain during the summer. Not occasionally, not rarely, but practically never from May through October. Day after day of monotonous clear skys and sunshine. The fields turn brown, the grass all dies, and the woods will burn with the slightest encouragment.
In fact that seems to be the pattern for all of the pacific coast. I now live on an island off the northern coast of Washington state and the pattern is pretty much the same. We'll probably have one more shower before July 4th and then nothing until November.