Number of wineries in British Columbia, Canada, up from just 19 in 1990. Despite its northern latitude, B.C. is warmer and more arid than the Napa Valley. It also gets 2 hours more sunlight each day in July and August. The most planted white grape variety in B.C. is pinot gris; the most planted red is merlot. (In 1990, it was riesling and pinot noir, respectively.