US President Joe Biden declares a major disaster in the state and ordered federal aid to supplement local recovery efforts in affected areas.
Soggy Californians have wearily endured their ninth successive storm in a three-week period that has brought destructive flooding, heavy snowfalls and at least 19 deaths, and forecasters said more of the same loomed for another day.
"Rain and heavy mountain snow to continue across the West," the National Weather Service (NWS) said on Sunday.
One to three feet (30 to 91 centimetres) of new snow fell over the weekend in parts of California's Sierra Nevada range.
Some areas of the central Sierra have received more than seven feet of snow in the last seven days, a research station run by the University of California at Berkeley reported. And the white stuff just keeps falling.
"Periods of moderate to heavy snow will continue into Monday," the NWS's Sacramento office tweeted.
US President Joe Biden late on Saturday declared a major disaster in the country's most populous state, allowing the federal government to expedite aid - including help with temporary housing and repairs - to Californians hit by flooding and landslides.
Drier weather appeared in the offing later in the week for a state more used to drought than to deluges that have flooded farm fields, closed major highways and inundated some urban areas.
"Dry weather returns on Tuesday, followed by a weak system Wednesday," the NWS tweeted.
Some flooding remains possible, the NWS said, "especially given the very wet antecedent conditions."
More than 11,000 homes remained without power Sunday in California, according to poweroutage.us.
READ MORE: New storms batter California amid 'disastrous' floods
'It happened crazy fast'
Parts of coastal California received a brief break in the rain, and residents there took advantage of the less inclement weather.
On a beach in Santa Cruz still covered with flood debris from the San Lorenzo River, 29-year-old Evan Short and three friends found room for a volleyball game.
"I saw a little break in the weather and convinced a couple other desperate friends to join us," Short, a data analyst, told AFP.
But much of the state was still struggling to cope with weeks of flooding and sometimes with personal disasters.
"I'm so angry, it just makes me want to cry," said Camilla Shaffer, a Briton in the northern town of Felton whose house flooded Saturday for the third time in two weeks.
Amberlee Galvin, a chef at a local restaurant, said her front room was inundated.
"Within 10 minutes it had flooded completely to the ceiling. It happened crazy fast," the 23-year-old said. "We had to get canoed out by a neighbour."
In Spreckels, a community a few hundred yards from the Salinas River in central California, most residents opted not to evacuate despite warnings from authorities.
"It looks like we might have missed kind of the worst of it," said Robert Zagajeski, out walking his dog.
But Governor Gavin Newsom urged Californians to remain vigilant and exercise "common sense over the course of the next 24 to 48 hours."
Between the repeated storms of recent weeks, workers have rushed to clear some of the mess, shovelling mud from roads and using heavy machinery to remove fallen trees or clear rockslides.
Winter storms are not unusual in California. But global warming is making them wetter and more powerful.
The past three months in San Francisco have been the rainiest - with 20 inches of rain in the period - since the winter of 1972-73.
Despite that, the farm fields of California, a breadbasket to the country, have yet to fully recover from years of drought.
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