It was so cold at the Santa Monica Pier Monday that the temperature tied a record low of 55 degrees, according to the National Weather Service.
The old record was set in 1949.
Record low temperatures for the day were tied at other coastal locations in Los Angeles, Orange and San Diego counties.
The temperature hit a low of 66 in Newport Beach, which tied a record set in 1934. At Oceanside Harbor, the temperature was also 66, tying a record set in 1953, according to the weather service.
Temperatures across the Los Angeles region will continue to remain below normal for much of the week as an onshore flow pushes coastal low clouds and fog inland, the weather service reported.