In March, the weather in Leavenworth is typically cold. Average daily high temperature in March is about 4 degrees above zero. On average, Leavenworth has 10 cloudy, 8 partly cloudy, 5 rainy, 5 sunny, and 3 snowy days in March. The rains are usually heavy. March as well as January, February, April, and May is considered the most uncomfortable time to visit Leavenworth.