10-22-2013 2-17-49 PM
Scroll down for an interactive map. IBTimes/Lisa Mahapatra

Gas prices are at a nine-month low, and it’s quite possible they'll stay that way well into next year. The average price per gallon hit $3.35 on Monday -- 14 cents less than it was a month ago, and 33 cents less than it was at this time last year.

Gas prices could be even lower toward the end of the year, Avery Ash, AAA’s manager of regulatory affairs, told Politico.

“Our expectation continues to be that national gas prices are going to be falling; however, the magnitude of that decline may be somewhat limited by high crude prices,” Ash said. “There’s only so low prices can go.”

Gas prices will likely plunge to $3.15/gallon on average in the U.S. by the end of 2013, according to a new forecast from the Energy Information Administration.

The lowest prices are in Tulsa, Okla., at an average $3.00/gallon, and the highest are in Honolulu, around $4.04/gallon.

Overall, gas costs more on the East and West Coasts, and it's cheaper in the Midwest and the South.

Here’s a map of 167 U.S. cities, color-coded by how much gas costs there, based on data from GasBuddy.com. Click on any bubble to see what city it represents, and how much gas costs there, as of Oct. 22, 2013: