…for apples, broccoli, pears and potatoes–in Oregon at least. 
Oregon Grown Fresh Produce Calendar (pdf)
If you’re looking for information about what’s in season in your state, Sustainable Table might be a good place to start. Though not every state is listed on their “eat seasonal” page, there is lots of more general information available too, from the sustainable dictionary to sustainable shopping guides.
Looking at the weather outside, it’s hard to believe there’s anything in season; it appears to be snowing horizontally.
