March in Leavenworth is the rainiest month of the year. In March, the weather in Leavenworth is typically cold. Average daily high temperature in March is about 3 degrees above zero. On average, Leavenworth has 25 rainy, 3 cloudy, 2 sunny, and 1 snowy day in March. The rains are usually heavy. March as well as February, April, and November is considered the most uncomfortable time to visit Leavenworth.