A second day of showers and thunderstorms in southern and central California is expected to again set new regional records for monthly rainfall.

Sunday's warm rain is a remnant of tropical storm Dolores off Baja California, which has carried warm, muggy conditions northward.

National Weather Service meteorologist Joe Sirard says Saturday's rainfall broke at least 11 regional records for daily rainfall in July, including five records for any day in July.

July is typically the driest month of the year in Southern California. Saturday's 0.36 inches of rainfall downtown broke the July 14, 1886, record of 0.24 inches — a nearly 130-year record. Sirard said.

He called the record especially significant because downtown Los Angeles has the longest recording climate station, dating back to July 1, 1877.