USGS Water Data for California

data californiaFure 1: Observed and projected changes (compared to the 1901–1960 average) in near-surface air temperature for California.Observed data are for 1900–2020. Projected changesCalifornia is home to a population of 39.2M people, from which 87.8% are citizens. As of 2025, 26.7% of California residents were born outside of