With the latest round of severe cold now in the rearview mirror, you have found yourself wondering if it’s gotten so cold that the Ohio River froze over. The short answer is yes! However, it’s been decades since that feat has been achieved. The National Weather Service in Louisville says the last time the Ohio River in Louisville froze over because of cold weather was in back-to-back winters of 1976-1977 and 1977-1978.