The big jumps came Tuesday, Wednesday and Thursday of last week, and then prices stabilized over the weekend, AAA said.
Pensacola had the least expensive gas in Florida on Sunday with prices averaging $2.46 per gallon followed by Tallahassee at $2.48 and Jacksonville at $2.49 per gallon.
"Colder weather, uncertainty over the corruption crackdown in Saudi Arabia and more tensions in the Middle East could overwhelm any hope that a strengthening Loonie might help see pump prices taper off this week", said Dan McTeague, senior petroleum analyst at GasBuddy.
The national average price for regular unleaded was $2.56, AAA reported, up 3.4 cents over the week and almost 39 cents more than this time past year.
AAA Michigan surveys daily fuel prices at 2,800 gas stations across the state.
The rising price at the pump contradicts the usual trend of dropping gas prices during the fall season.
In most states, the cost of filling up increased over the past week, but as with most things, the pain was not spread equitably. That's caused supply levels to tighten and gas prices to increase.
Isn't it interesting that gas prices never fall that fast following steep oil-price declines?
Prices didn't rise so sharply in South Florida, primarily because they were already higher than in those northern markets at the beginning of the week. The highest was about $2.78 per gallon in the Marquette area.
The state price has risen 41 cents since this time past year, when it was averaging $2.12 per gallon. On the other side of the spectrum, Lawrence was one of the two that saw declines and they're paying a nickel less per gallon.