A dried-out lawn is seen in the city of Glendora, east of Los Angeles, this week. About 58 percent of California is now under the most extreme drought conditions, a new report says. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images

A sign over a highway in Glendale, Calif., warned motorists in February to save water in response to the state's severe drought. But a study released earlier this week showed residents in the southern coastal part of the state used more water this spring than they did last year. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images

Farmworkers pull weeds from a field of lettuce near Gonzales, Calif. Salinas Valley farms like this one rely on wells, which haven't been affected much by the drought. George Rose/Getty Images hide caption

itoggle caption George Rose/Getty Images

Recent rains kept Suzanne and Mike Collins' orange grove alive, but the rainy season is ending. If they don't get federal irrigation water by this summer, their trees will start dying. Kirk Siegler/NPR hide caption

itoggle caption Kirk Siegler/NPR

Pacific Or Bust: Fingerling Chinook salmon are dumped into a holding pen Tuesday as they are transferred from a truck into the Sacramento River in Rio Vista, Calif. From here, they'll be towed downstream for a bit, then make their own way out to the Pacific Ocean. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

An alfalfa farmer on the Duck Valley Reservation in Nevada laser levels a field to more evenly and efficiently distribute water. While alfalfa is still the main crop for many farmers in northern Nevada, some are experimenting with grapes, too. USDAgov/Flickr hide caption

itoggle caption USDAgov/Flickr

A steady cascade of water is released below Peters Dam in Marin County, Calif. Recent rainfall has improved conditions in parts of California, but the state remains in a drought. Mark Andrew Boyer/KQED hide caption

itoggle caption Mark Andrew Boyer/KQED

Raindrops on a windshield blurred the view of a woman Wednesday in San Francisco. California, which is suffering through a drought, is getting some much-needed precipitation this week. Ben Margot/AP hide caption

itoggle caption Ben Margot/AP

Images of Folsom Lake, a reservoir in Northern California, show the severity of the state's drought. The photo at left, taken on July 20, 2011, show the lake at 97 percent of total capacity and 130 percent of its historical average for that date. The photo at right shows the lake on Jan. 16, 2014, when it was at 17 percent of capacity and 35 percent of its historical average. California Department of Water Resources hide caption

itoggle caption California Department of Water Resources

Lagunitas Brewing Company's owners are nervous that the Russian River water they currently use to make beer could run out in the drought that's hammering California. Courtesy of Lagunitas Brewing Company hide caption

itoggle caption Courtesy of Lagunitas Brewing Company