What is your gardening goal?
It is a bummer you missed the main season, but if the ground isn't frozen you can start prepping your beds for next year, researching and planning. Source the perennials you want for next year.
I have this book: Perennial Vegetables: From Artichokes to Zuiki Taro, A Gardener's Guide to Over 100 Delicious and Easy to Grow Edibles. I was very surprised at how many are cold hardy.
Get prepared to start seedlings indoors.
I don't know haksops but you're shooting yourself in the foot if you don't have a bed of blueberries.
Second the hardy greens.