In this below-sea-level basin, steady drought and record summer heat make Death Valley a land of extremes, yet each extreme has a striking contrast. Towering peaks are frosted with winter snow, rare rainstorms bring vast fields of wildflowers, and lush oases harbor tiny fish and refuge for wildlife and humans. Despite its morbid name, a great diversity of life survives in Death Valley. Autumn arrives in late October with warm but pleasant temperatures and generally clear skies. Winter has cool days, chilly nights, and rarely, rainstorms, and with snow capping the high peaks and low-angled winter light, this season is especially beautiful for exploring the valley. Springtime is the most popular time to visit, with warm and sunny days and the possibility of spring wildflowers. Summer starts early, and by May the valley is too hot for most visitors.