Hammered with record rainstorms and blizzards, nearly half of California is no longer in a drought, and the rest saw dramatic improvement over the past week, federal scientists reported Thursday. Overall, 49 percent of the state is now drought free, the highest level since April 2013, according to the U.S. Drought Monitor, a weekly study by the National Oceanic and Atmospheric Administration, the U.S. Department of Agriculture and the University of Nebraska, Lincoln.