Gas prices are at a 12-year low heading into the Labor Day weekend.

Labor Day is often the last road trip of the summer for Americans, and filling up the car for the long weekend will be cheaper this year than it has been in past years. The average U.S. gas price is currently $2.24 a gallon—almost thirty cents lower than it was at this time last year.

Prices in Wyoming, Colorado and North Dakota are hovering around that average, while prices on the West Coast are significantly higher, and prices in the south are significantly lower.

Cheaper gas prices in recent months have prompted more driving, resulting in Americans purchasing more gas in June than ever before.

But with fall around the corner, driving is expected to drop off and gas prices are likely to drop even lower.