In mid November we built a simple pair of hoops over one of our raised beds. We have not tried this before but are taking the year round garden attempt seriously, so thought we would give it a try. You might ask, where does one find instructions about this sort of endeavor for this climate? Long story short, we can't find any.
Then, before we could decide exactly which seeds to plant, it snowed like crazy. It got really cold (like 10 degrees F cold) and we thought, hey look at that...row cover is awfully tough stuff. We decided to try skipping the plastic.