DENVER (KDVR) — Summer travel is already starting, and gas prices continue to surge across the country. The national average for a gallon of regular fuel is $4.48 as of Monday morning.

The most expensive state for gas is California, with a gallon of regular fuel priced at $5.98 on average. The least expensive state for gas is Kansas, with a gallon of regular fuel priced at $3.98 on average.

There are only 3 states with gas under $4.00 per gallon on average: Kansas, Georgia, and Oklahoma.

Colorado’s average price for a gallon of regular fuel ranks as one of the 10 cheapest in the country.

Here are the 10 cheapest states for a regular gallon of gas, according to AAA:

  1. Kansas: $3.98
  2. Georgia: $3.99
  3. Oklahoma: $3.99
  4. Missouri: $4.05
  5. Arkansas: $4.05
  6. Mississippi: $4.07
  7. Nebraska: $4.09
  8. Minnesota: $4.10
  9. North Dakota: $4.11
  10. Colorado: $4.11

Here are the 10 most expensive states for a regular gallon of gas, according to AAA:

  1. California: $5.98
  2. Hawaii: $5.31
  3. Nevada: $5.17
  4. Washington: $5.03
  5. Oregon: $4.99
  6. Alaska: $4.88
  7. District of Columbia: $4.83
  8. Illinois: $4.82
  9. New York: $4.75
  10. Arizona: $4.75

One year ago, the average price for a gallon of regular gas in Colorado was $3.07, which is more than $1.00 per gallon lower than the current average of $4.11.

The national average for a gallon of regular fuel on this day last year was $3.04, which is $1.44 less than today’s average of $4.48 per gallon.