Average gas prices in Appleton have jumped nearly 26 cents over the past week, according to GasBuddy.Appleton's average gas price now sits at $4.56 per gallon, up 25.7 cents in the last week.Appleton tops Green Bay's average of $4.54 per gallon, which rose 14.8 cents in the past week. GasBuddy says prices in Green Bay are just over 78 cents per gallon higher than a month ago.As for the national average, the price of gas has dropped 1 cent per gallon in a week, averaging $4.47 per gallon as of Monday up 45.2 cents per gallon from a month ago and $1.33 per gallon higher than a year ago, according to GasBuddy.GasBuddys Patrick De Haan said geopolitical tensions, especially involving Iran, could push prices higher ahead of Memorial Day. ...read more read less