I would suggest you look up grape growing and varieties to clear up your ignorance.
Sun, heat, water, etc, influence production, taste, susceptibility to fungal and other diseases, fruit cracking on the vine, etc.
Cultivars bred suitable to particular areas may not grow or produce well in different areas.
Not just grapes, mind you, this applies to apples, cherries, other fruits... What does well in Zone 7 CA might not necessarily do as well in Zone 7 NY.