Crystal Peak is a 6,595-foot (2,010 meter) summit located in eastern Mount Rainier National Park, in Pierce County of Washington state.

Crystal Peak is located in the marine west coast climate zone of western North America.

[4] Most weather fronts originating in the Pacific Ocean travel northeast toward the Cascade Mountains.

As a result, the west side of the Cascades experiences high precipitation, especially during the winter months in the form of snowfall.

[4] The months of July through September offer the most favorable weather for viewing or climbing this peak.