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.
California needs one and a half times the maximum volume of water in Lake Mead, the largest US reservoir, to end its drought.
A new study by the National Oceanic and Atmospheric Administration says natural occurring climate patterns –not climate change- are the primary drivers of California’s drought.
A Republican- backed drought relief bill for California is headed to the floor of the US House of Representatives for a vote Tuesday. The legislation ignited an hour of debate Monday.
Pollution from abandoned mines in the Sierra Nevada could threaten California's primary water supply.
The City of Roseville hopes to break the 20-percent water conservation mark for the year. The city posted its best conservation mark for the year in November.