COLUMBUS, Ohio (WTVN) --Central Ohio gas prices have dropped in the week leading up to an expected holiday spike. reports the average price of self-serve regular dropped 13-cents this week to $3.57 a gallon. 

The statewide average of $3.63 is a dime cheaper than this time last week according to AAA's Daily Fuel Gauge Report.

The national average has increased 3.5 cents per gallon during the last month and stands 17.7 cents per gallon higher than this day one year ago. 

"Just in time for the July 4 weekend, it appears the national average has hit a new 2014 high in the last week," said Senior Petroleum Analyst Patrick DeHaan.

"The good news is that we're seeing signs that the peak price we hit last week is starting to unwind, but with July 4 just days away, motorists shouldn't be expecting any big retreats in price before the weekend", DeHaan said.

DeHaan notes that as long as the situation in Iraq remains calm and the seas remain hurricane-free, motorists will continue to see a slow decline in prices.

Even so, DeHaan says, "it will still be the most expensive July 4 at the pump since 2008."