You need the proper climate for growing grapes if you're going to have a successful vineyard. However, the proper climate is a variable term, since different types of grapes need different climates in order to thrive.
You can grow some sort of grape just about anywhere that has four seasons including at least a three months of summer. You can also grow grapes anywhere with more than three months of summer-like temperatures, since many grape varieties like it hot. The only places you really can't grow grapes are places where it's too cold year-round or in rainy areas where you don't get enough sunlight.
Grape vines prefer full sun and mild winters. Most varieties of grapes cannot stand much of a frost, but some hardy varieties simply go dormant in the winter and produce their grapes on a shorter growing season. In general, grapes prefer sandy, slightly acidic soil with good drainage.
You can determine if your areas gets enough sunlight by measuring how many hours of full sunlight your vineyard gets a day and figuring out how much sunlight a grape vine would get in a growing season. Your vines need at least eight hours of sun per each day in the growing season, preferably more. The growing season consists of days where the daytime temperature is at least 50 degrees or warmer. Your typical grape vine needs 170 days like this.
If you live in a warm, sunny climate, you can grow just about any kind of grape you please. The tough climate with which to work is the colder climate. The following grapes are well suited to colder climates:
Red Wine Grapes That Thrive in Cold Climates:
Baltica, Landot Noir, Savrevois, St. Croix and Swenson Red
White Wine Grapes That Thrive in Cold Climates:
Alpenglow, Brianna, Edelweiss, Frontenac Gris, LaCrosse, LaCrescent, Prairie Star, Swenson White and Vignoles
Eating or Juicing Grapes That Thrive in Cold Climates:
Bluebell, King of the North, Reliance, Somerset Seedless, Toldi, Trollhaugen and Valiant
Germinating grape seeds is a painstaking process, and most of the time, only a fraction of the seeds will germinate. This is why most people buy grape vines that have already been established in a nursery.
There are over 600 types of grapes grown around the world. Some will grow in your backyard, but others will not. Learn their names.