Gas prices, as expected, seem to be hitting a plateau now that summer is over. The weekly average price of a gallon of regular gas is $3.85, up less than a penny compared to a week ago, according to the Department of Energy. This price is still up 19 cents from a year ago.

Notably, prices in the Midwest and the Gulf regions are down compared to last week. Prices in those regions were most affected by Hurricane Isaac.

A lot of the gas sold and oil refined in the Midwest comes from the Gulf. Now that the effects of Hurricane Isaac are diminishing, prices are coming down in those regions.