The national average price of a gallon of regular gas today is $3.534, up from last week's price of $3.490, AAA reports. Last month, prices were lower, at $3.329 for a gallon of regular. Premium fuel is averaging $3.814 a gallon today, up from $3.770 last week and $3.622 last month.
In Chicago, today is the first day in a while that we've seen prices break the $4 barrier for a gallon of regular. Still, we've still got it pretty good. AAA's national average price for a gallon of regular on this date last year was $3.703; premium cost $3.953 a gallon.