The weather is starting to get warm in April. While the skiing is generally great in April beware of mountains at lower elevations particulary if a warm spell occurs. Copper and Breckenridge both have base elevations of approximately 9700'. Copper has a great beginners area that is totally isolated from the main ski traffic.

April of 2006?

Steamboat Springs' snow is iffy in the spring, too. It has south-facing slopes to catch the sun. So it gets slushy on warm days, then has chunky frozen slush in the mornings.