Now is the time to plant beets, Brussels sprouts, carrots, greens, lettuce, onions, English peas, spinach, and turnips.
If you are planning to plant asparagus, broccoli, cabbage, cauliflower, kohlrabi, or potatoes you should do so in the next few days (provided the ground isn't too wet). I planted potatoes today, in big (20") pots. . . I've never done this before so it's a bit of an experiment.