MADISON, Wis. -

Gas prices are at their cheapest level in four years, with prices dropping six cents in the last two weeks.

Pain at the pump is easing around the country. According to AAA, prices have dropped every day for the last six weeks, which is not a typical pattern for the summer.

But the Midwest is seeing a hike in prices because of problems at oil refineries.

"We have the events taking place in the Middle East, and we have the wildcard of hurricane season approaching," AAA spokesman Michael Green said. "And anytime you have a hurricane that could hit the Gulf Coast that could send gas prices as high as 15-20 cents per gallon."

AAA officials said the national average is at $3.47 a gallon, which is three cents cheaper than a week ago.

Drivers in Wisconsin are averaging about $3.48 a gallon. Madison and Janesville drivers are both paying around $3.41 a gallon. Milwaukee drivers are paying $3.50, which is up seven cents.