LOS ANGELES — With California entering its fifth year of a statewide drought, Gov. Jerry Brown moved on Monday to impose permanent water conservation measures and called on water suppliers to prepare for a future made drier by climate change.

Under the governor’s executive order, emergency drought regulations, like bans on hosing down driveways or watering lawns within 48 hours of a rainstorm, will remain indefinitely. Urban water suppliers will be required to report their water use to the state each month and develop plans to get through long-term periods of drought.

Despite winter rains that replenished reservoirs and eased dry conditions in parts of Northern California, Mr. Brown suggested that the drought may never entirely end, and that the state needed to adapt to life with less water.

“Californians stepped up during this drought and saved more water than ever before,” Mr. Brown said in a statement. “But now we know that drought is becoming a regular occurrence and water conservation must be a part of our everyday life.”