I general, beer should be stored in a cool place. In warmer climates
     this often means refrigeration and you get used to letting your beer
     warm a little before you drink it. Cooler climates often use cellars
     to store beer which works quite well. As long as temperatures are
     kept between 35F(2C) and 60F(15C) you're probably OK. Keep in mind
     that storing at the warmer end of this scale will increase any aging
     effects since any yeast remaining in the beer will be more active.
     This is a Good Thing if you're aging a barleywine but will cause
     lower gravity beers to go "stale" sooner.