SAN DIEGO (KGTV) -- Gas prices continue to soar in Southern California, rising nearly two cents more Monday.
According to figures from AAA, the price for a gallon of gas gone up more than 50 cents in less than a month.
AAA also says that the price has risen for 21 consecutive days and 27 of the last 28 days in San Diego County.
The price per-gallon is more than 20 cents more than a week ago, 51.7 cents more than a month ago and over 27 cents higher than a year ago. California's gas tax is also set to increase by 5.6 cents on July 1, 2019.
Meanwhile, the national average for a gallon of gas Monday was $2.74.
AAA says a series of refinery issues reduced gas supplies.
Bloomberg Phillips 66 refinery in Los Angeles, and Chevron Corp.'s El Segundo plants all experienced shut downs and stalls in oil production due to various problems.
"Four dollars a gallon on average is certainly within the realm of possibility," Patrick HeHaan, with GasBuddy, told 10News.
City News Service contributed to this report.