The park is open year round. Be prepared for abrupt weather changes in any season. Expect windy conditions most of the year.
Spring is usually mild, but heavy snowfall can occur.
Summer days are warm with temperatures in the 80s. Afternoon thunderstorms are likely July to September. In winter, snow and freezing temperatures alternate with mild weather. Accessibility Accessible restrroms are located at the Visitor Center and the Lava Flow Nature Trail. The Visitor Center and portions of the Lava Flow Nature Trail are also accessible.