There is a strawberry farm behind my house here in a very similar climate. They grow the best strawberries around here. They are growing Albion, Chandler, and Seascape. They are all good but the Albion and Chandler are the best. I grow Albion and get strawberries all season long, very large, conical shape, and delicious. These also last longer than other varieties due to being extra firm. I think Albion is your best bet if you like large and firm berries. The Seascape are also planted a lot here, very tasty, just not quite as good and firm as Albion imo. Good luck, remember to thin if you want the jumbos!