Right on cue: Seasonal trends nudge gas prices higher 

As spring approaches, refineries are beginning their transition to summer blend fuel, which often results in higher prices this time of year.

This week, gas prices are up across the board, according to AAA, bringing the average for a gallon of regular unleaded in Gainesville to $2.99, compared to $2.91 a week ago. The statewide average is up by six cents to $3.00. The national average, meanwhile, is $3.16, a three cents-a-gallon increase.

In addition to the conversion to summer blends, routine seasonal maintenance and an offline refinery in Northern California are putting additional strain on supply, AAA says. These factors are pushing gas prices up, which means we may see higher prices at the pump as warmer months approach.