We might be reaching the peak of gas prices, though that's little consolation to consumers who have seen prices skyrocket over the last few weeks.

According to gasbuddy.com, prices in Colorado have increased by almost 60 cents in the last month. Colorado now has the 10th lowest prices in the country, up from second lowest last week.

The national average is creeping closer to the $4 a gallon mark for regular gasoline. Chicago is the most expensive city in the country at $4.56 a gallon.

Oil analysts say it might not go much higher because crude oil prices have started to ease.

But the prices some drivers of a certain age remember may never be coming back. It's been more than a decade--March of 1999--since the national average was under $1. 2004 was the last year the national average stayed below $2.