The President called to get an update on the dry conditions, as 17 communities are in danger of running out of water within four months.
The White House says the President told Brown the federal government will keep working to support California's response to the drought.
The White House says the National Drought Resilience Partnership is coordinating the federal response.
The Federal Emergency Management Agency and the Agriculture Department are involved in the effort.
The drought in California, in its fifth consecutive year, has created conditions that are ripe for wildfires. The National Interagency Fire Center predicts "above normal" fire potential through September for portions of California, Nevada and Idaho.
A new report shows there are certain highways in California that are "hot spots" for wildlife-vehicle collisions.
A new report says more people in California are at risk from wildfire and fires are starting earlier and are three times larger than in the 1970s.
A new study finds California’s Central Valley has three times more water beneath it than previously estimated.
UPDATE June 26: Fire managers says the Erskine Fire near Lake Isabella in Kern County has grown to 43,460 acres and is 40 percent contained. Two people have died, and more than 250 structures have been destroyed and an additional 75 damaged.