March in Lenoir City is the rainiest month of the year. In March, the weather in Lenoir City is typically warm. Average daily high temperature in March is about 14 degrees above zero. On average, Lenoir City has 13 rainy, 10 partly cloudy, and 8 sunny days in March. The rains are usually moderate. March as well as January, February, and December is considered the most uncomfortable time to visit Lenoir City.