Martha's Vineyard AVA citing historical evidence that viticulture has been practiced on the Massachusetts island named Martha's Vineyard since at least 1602. The maritime location helps to create a slightly warmer climate than the nearby coastal regions of Massachusetts, and a growing season that is almost three weeks longer. The hardiness zone is 7a. Martha's Vineyard AVA The Martha's Vineyard AVA is an American Viticultural Area located in Dukes County, Massachusetts, including all of the land on the islands named Martha's Vineyard and Chappaquiddick Island. These two islands are located off the southern Massachusetts coast, surrounded by Vineyard Sound, Nantucket Sound, and the
Martha's Vineyard evenly distributed throughout the year. The highest daily maximum temperature was on August 27, 1948, and the highest daily minimum temperature was on September 4, 2010. The lowest daily maximum temperature was on December 26, 1980, and the lowest daily minimum temperature was on February 2 and 3, 1961. Martha's Vineyard is divided into six towns. Each town is governed by a board of selectmen elected by town voters, along with annual and periodic town meetings. Each town is also a member of the Martha's Vineyard Commission, which regulates island-wide building, environmental, and aesthetic concerns. Some government programs on the