Dog Days begin.
Weather - As the Dog Days commence, so they end.
If it rains on the first Dog-Day, it will rain for forty days after [or for thirty days after. Take your pick]
Dog Days bright and clear, indicate a happy year.
But when accompanied by rain, we hope for better times in vain.
[Well, it is bright, sunny, and HOT in the Smallest State, so by gum! it had better be a happy year!]