Same latitude as France, yes, but not the same climate: New York is (roughly) 40 degree North, Chicago is 42 degree North, Madrid (Spain) is 40.5 North and Bordeaux (South of France, and 1 of the largest wine producing region) roughly 45 degree North, but there is almost never snow, nor freezing in Bordeaux (average low 3 Celsius in January, 1 day snow every 3 years), and Madrid rarely (elevation is 667 meters). And you have white wines in Alsace (where winter is very cold) and in the Moselle valley (close to Belgium) with snow and freezing every years. In Switzerland, Wallis and Vaud counties produce lot of (white) wines and in Germany, the Neckar valley is a continuous vineyard.