PORTLAND — A price-watching website says average retail gasoline prices in Maine have risen 0.4 cent per gallon in the past week to an average of $3.19 per gallon.

MaineGasPrices.com says Sunday’s price compares with the national average, which has increased 2.9 cents per gallon in the last week to $3.11.

Including the change in prices in Maine during the past week, prices Sunday were 45.4 cents per gallon higher than they were the same day a year ago, and 3.9 cents per gallon higher than a month ago.