Spring is in full swing, and like the weather, so are the thunderous weather-themed proverbs. As we start April, you may have not heard these next two weather proverbs, but they still ring true today. "If it thunders on All Fools' Day, it brings good crops of corn and hay," and "The first thunder of the year awakens all the frogs." The thunder and frogs -- called "spring peepers" -- officially sound the trumpets of spring. These lesser-known proverbs proclaim the beginning of the season and the effects that April's first thunderstorms have on farmers across the world, pointing to...