Its strange how climates are changing. I figured ours had changed and sure enough we have been downgraded to 4a....which comes as no surprise. Last year it was the middle of June when the last snow storm dumped on us. I was saddened when our first snow storm came again in mid September. I know most don't feel that growing in a greenhouse is good for the environment, but some of us are in a position where we either need to up and move or we need to put them in. The garden was productive, but little lived to see harvest with the cold freezing everything just three months after the seeds went into the ground.