With around 30 million people, California is America's most populous state. Throughout most of California there are essentially only two seasons, the dry season and the wet season. Annual precipitation in the state varies from an average low of 5 cm in Imperial Valley to an average high of 173 cm at Crescent City. Heavy fog is common along the coast during the summer months and tropical rainstorms are typical during the winter months. Los Angeles has an average of 38 cm of precipitation annually, while San Francisco averages 54 cm.
Temperatures vary throughout the state.
Cultural Profile California's rich cultural heritage reflects the diversity of its citizens. San Francisco's M.H. de Young Memorial Museum exhibits paintings by European and African artists, cultural artifacts created by early native Americans, and, in the Asian Art Museum located in the west wing, many fine works of oriental art. Other noted museums in San Francisco are located in the California Academy of Sciences and the California Place of the Legion of Honor. The oldest public art museum in the West is the Crocker Art Museum in Sacramento. San Diego has twenty-three museums, including the Timben Art Gallery, the Serra Museum, and the Reuben H. Fleet Space Theater and Science Center.