June to August features warmer temperatures and plenty of sunshine, ideal for enjoying Mammoth Lakes’ numerous outdoor activities, such as hiking, mountain biking, and fishing. This period is great for taking advantage of the clear weather and engaging in summer adventures. September to November offers cooler temperatures and a quieter atmosphere, making it an excellent time to appreciate the fall colors, explore the trails, and participate in local events. December to February brings colder weather and snowfall, providing a picturesque setting for winter sports like skiing and snowboarding, as well as enjoying the cozy mountain ambiance.