In March, the weather in Estes Park is typically cold. Average daily high temperature in March is about 1 degree above zero. On average, Estes Park has 9 cloudy, 8 rainy, 6 partly cloudy, 5 sunny, and 3 snowy days in March. The rains are usually moderate. March as well as April, May, and July is considered the most uncomfortable time to visit Estes Park.