In April, the weather in Tumnin is typically cold. Average daily high temperature in April is about 3 degrees above zero. On average, Tumnin has 13 rainy, 7 cloudy, 4 snowy, 4 sunny, and 2 partly cloudy days in April. The rains are usually moderate. April as well as January, February, May, and October is considered the most uncomfortable time to visit Tumnin.