Rainiest Place in the U.S.: The North Shore of Kauai Most people would probably say it’s a toss-up. Seattle. Portland. Either one’s the rainiest city in the U.S. Read More Hawai'i, United StatesImaginexxusMay 15, 2019most rainfall in the United States, Seattle and Portland aren't the rainiest U.S. cities, 460 inches of annual rainfallComment