March weather forecast in Walla Walla

March in Walla Walla is the rainiest month of the year. In March, the weather in Walla Walla is typically warm. Average daily high temperature in March is about 11 degrees above zero. On average, Walla Walla has 17 rainy, 6 partly cloudy, 5 sunny, and 3 cloudy days in March. The rains are usually moderate. March as well as January, February, November, and December is considered the most uncomfortable time to visit Walla Walla.