March in Morristown is the rainiest month of the year. In March, the weather in Morristown is typically warm. Average daily high temperature in March is about 14 degrees above zero. On average, Morristown has 12 rainy, 10 partly cloudy, 8 sunny, and 1 cloudy day in March. The rains are usually moderate. March as well as January, February, and December is considered the most uncomfortable time to visit Morristown.