For a foodie, Opening Day is April 19, when the region's first farmers markets open! (According to Cincinnati Locavore, both markets at Findlay Market and Burlington open that day!)
It doesn't get much more local than farmers markets, and our region has a bounty. Now, there's a comprehensive (but unofficial) Web site for local farmers markets: www.cincinnatifarmersmarkets.org.
Check it out, and don't forget your reusable totes for all that produce!