Enrique, I don't think you'll need to water anything this winter. I think some of the relevant questions are: how old are your plants? Are they well-established or recently transplanted? Are they in the ground, or in containers? In the Fruit Growing section of this web site, Ted Swensen recommends watering newly planted fruit trees through their first August. I believe that recommendation is for all parts of the US, though most of the people who post here seem to be in the Pacific Northwest, where winter is our rainy season.

If you're concerned, the Extension Service for your county is the most likely place to find good information. Here's a link to a pamphlet from the Virginia Cooperative Extension Service on backyard fruit trees.