The average price has dropped 42.8 cents over the past 50 days, according to figures from the AAA and Oil Price Information Service.
In the Los Angeles/Long Beach area, regular is going for $3.45 a gallon.
Drivers in Orange County are paying $3.39 a gallon - this price is 8.2 cents less than one week ago.
The average price of a gallon of self-serve regular gas in Riverside County is $3.32 a gallon. In Ventura County, drivers are paying $3.45 per gallon.
All those prices are down about a cent from Tuesday.
City News Service contributed to this report.