Michigan’s lowest gas prices are right here in southwest Michigan. GasBuddy says South Haven’s prices are as low as $1.78, which is the rock-bottom level in the state. Triple-A Michigan’s latest survey of prices shows the Benton Harbor-St. Joseph area has an average of $2 per gallon, which is the lowest of the 10 areas the auto club surveys daily. Statewide, the average is $2.08, down 3¢ from last week. While prices are falling, they’re still up by 23¢ a gallon from last year statewide and up 18¢ in the Twin Cities.