Cooling represents a major source of energy consumption and cost in today's data centers. While using outside air for data center cooling offers opportunities for savings, it has only been available to infrastructures constructed in colder climates. This white paper analyzes climate data across and outside of the country and differentiates between two types of economization. Determine whether your data center is a good candidate for fresh air cooling and explore servers that can allow you to leverage this concept regardless of the temperature extremes of your region.