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It will feel warm in the sunshine with temperatures reaching 17C in places and the nights should stay frost-free.

Make sure the plants you select have sufficient frost-free growing days to mature and flower or produce fruit.

There's a patch of concrete on Drexel University's campus that could portend a frost-free future for sidewalks and highways in the Northeast.

Those extra weeks of frost-free weather mean a moose meandering in the brush can acquire tens of thousands of more ticks on its coat than it would otherwise.

Despite a summer of extreme weather - leading to stunted crops and shrunken vegetables - apples have fared pretty well overall, benefitting from a frost-free spring and long hours of summer sunshine.