Ohioans will be paying a little more for gas as the new work week begins. The average Monday is $338 for a gallon of regular gas in the survey for Auto Club AAA. That’s up 9 cents from last week. The national average is $3.31, down a penny from last week. Monday’s national average is identical to the average price one year ago. The Ohio average is 23 cents higher than a month ago, and 12 cents higher than this time last year.