Average retail gasoline prices in Wyoming have risen 2.2 cents per gallon in the past week, averaging $2.25/g yesterday, according to GasBuddy's daily survey of 494 gas outlets in Wyoming. This compares with the national average that has increased 3.0 cents per gallon in the last week to $2.32/g, according to gasoline price website GasBuddy.com.

Including the change in gas prices in Wyoming during the past week, prices yesterday were 39.6 cents per gallon lower than the same day one year ago and are 17.3 cents per gallon higher than a month ago. The national average has increased 11.1 cents per gallon during the last month and stands 42.7 cents per gallon lower than this day one year ago.

According to GasBuddy historical data, gasoline prices on May 31 in Wyoming have ranged widely over the last five years:

$2.65/g in 2015

$3.48/g in 2014

$3.58/g in 2013

$3.60/g in 2012 

$3.64/g in 2011

Areas nearby Wyoming and their current gas price climate:

 Fort Collins- $2.25/g, up 3.6 cents per gallon from last week's $2.22/g.

 Ogden- $2.42/g, down 1.7 cents per gallon from last week's $2.44/g.

 Billings- $2.28/g, up 0.6 cents per gallon from last week's $2.28/g.

"What a start to the summer driving season! The lowest gasoline prices in 11 years are greeting motorists hitting the road this summer," said Patrick DeHaan, senior petroleum analyst for GasBuddy. "Not only gasoline prices, but diesel too. In fact, every single state in the nation is seeing  lower gasoline and diesel prices than where we started summer last year- both of which currently average $2.32 per gallon. Going forward, much of the country will spend much of the summer in the twos for both gasoline and diesel. Prices in the biggest cities: New York, Los Angeles and Chicago could break $3/gallon at some stations, but the bigger the city, the more motorists stand to save by shopping for the lowest prices," DeHaan added.

For LIVE fuel price averages, visit HERE.