Farmers and gardeners who feel like Maine’s growing season is changing are right. And soon, the state’s hardiness zones will reflect that. It’s just a question of when. “Our average annual temperature has increased by about three [degrees Fahrenheit] over the last century, and is expected to increase an additional two to three [degrees Fahrenheit] read more MECAN members Mallory and Birkel explain effects of climate change on planting dates in Maine