[Corey]

Beer which will be consumed within a month should always be in a fridge, no doubt about that. Also, remember beer in the fridge should never be stored on its side.

Cellaring beer and wine presents problems that you must actively seek to prevent, but that's a thread unto itself.

That being said, skunking usually results from rapid changes of temperature, not necessairly being too cold or too hot. Direct sunlight will just accelerate this process. Humidity changes can also affect cork or not-properly sealed bottles (home-brews can succumb to this).