By Lenn Thompson, Executive Editor Grape growing dates to 1677 in the Hudson River Region AVA, but that doesn't mean that its an easy endeavor. Yes, the river that gives the region its name helps moderate the climate, but it's not nearly deep enough to have the same effect that the Finger Lakes do to the west. It rains a lot in the Hudson Valley. It's also humid. And like the rest of New York, it's a cool-climate region with a relatively short growing season often with early and late frosts on either end. Growing grapes, particularly vinifera, can be…