Gas prices in Michigan continue to buck the historical summertime upward trend, falling 6-cents a gallon this week to a statewide average of $2.29. Locally, AAA Michigan says the price in the Benton Harbor-St. Joseph area is down 11-cents to $2.23, which is also two-cents lower than this time last year. The auto club notes the Great Lakes region is finally experiencing some price stability, and Michigan’s price drop over the past week and the last month is the second-largest in the nation. The lowest prices in Michigan are in the Saginaw-Bay City-Midland area at $2.22, while Ann Arbor drivers are paying the most for the third straight week at $2.35 a gallon. GasBuddy spotters put the South Haven average at $2.14, though just one station is selling gas for more than $2.13 a gallon.