We are on location at a client in northern Vermont, and are in the process of migrating their server from a failing server to a healthy server. Migrating Active Directory, Exchange, and user files can be tricky, but we have it under control.
With sensitive equipment there comes the need for air conditioning. Typically, a server room should be kept as close to 70 degrees as possible to avoid costly and potentially long term damage to your hardware. Failure to properly supply cool air to your heat generating devices will slowly but surely ends in the need to replace your hardware. Don't risk it, keep it cool. Think of the thousands of dollars you won't need to spend to fix what your air conditioner could have prevented.