Early morning temperatures plummeted to 3 degrees in Big Bear, 23 degrees in Lancaster and 40 degrees in Long Beach.
Frost advisories issued by the National Weather Service is expected to expire at 9 a.m. for the San Fernando, San Gabriel and Santa Clarita valleys, inland Orange County, and the Ventura County Coast.
A freeze warning is also set to end at 9 a.m. in Ventura County's interior valleys.
A dry and cold air mass is in place over SW California. A Freeze Warning has been issued for the Central Coast, Santa Ynez Valley and Ojai Valley. Lows 29-32 degrees expected. Cover or bring plants inside. Pets should be kept indoors as well. #CAwx #Socal pic.twitter.com/lr105sBMaC— NWS Los Angeles (@NWSLosAngeles) February 7, 2019