What temperature is ideal to store my beer? What temperature is ideal to store my beer? Is there a difference depending on the beer type?
The ideal temperature for storing beer is between 10 to 15 ˚C (50 to 59 ˚F). If you are planning to preserve your beer for several years, it is better to have an even lower temperature of about 4 to 10 ˚C (40 - 50 ˚F). 

A cold cellar is ideal to preserve your beer as a humidity of about 60% - 65%. The reason being that it can affect the airtightness of the cork (or cap). Dry corks are bad for preserving beer as they will tend to break down and cause wild yiests or bacteria to enter the bottle (which would render the beer undrinkable).

And as commented by Grohlier:

Remember, light can drastically affect beer. Darker bottles can withstand more light than their green and clear counterparts. However, light is not good for beer in general, even if it is stored at the appropriate temperature.