March in John Day is the rainiest and the windiest month of the year. In March, the weather in John Day is typically cold. Average daily high temperature in March is about 5 degrees above zero. On average, John Day has 17 rainy, 5 cloudy, 5 partly cloudy, and 4 sunny days in March. The rains are usually moderate. March as well as February, April, and November is considered the most uncomfortable time to visit John Day.