Average gasoline prices in Billings jumped 6 cents a gallon last week, averaging $3.12 a gallon on Monday, according to gasoline price website BillingsGasPrices.com.
The national average price for gas increased 5 cents a gallon last week to $3.53.
Billings prices Monday were 18 cents per gallon higher than one year ago and are 9 cents per gallon higher than a month ago. The national average has increased 18 cents per gallon during the last month and stands 36 cents per gallon higher than one year ago.
The average gas price in Montana was $3.11 a gallon on Monday. In Wyoming, the average price was $2.99 a gallon.
In Wyoming, prices in Cody ranged between $3.07 and $3.09 a gallon Monday. In Casper, prices ranged from $2.85 to $2.95 a gallon. In Sheridan, prices reported were between $2.87 and $2.91 a gallon.
"Gasoline prices have perked up a bit in the last week," said Patrick DeHaan, GasBuddy.com senior petroleum analyst. "As we continue to move towards warmer weather, gasoline prices will follow, with prices accelerating higher at a faster pace come late March into April, so if motorists think this is bad, they should really hold on to their chairs," DeHaan said.