The outdoor temperature and humidity levels have a direct impact on the energy consumption of a data center’s HVAC system. As the outdoor air temperature and humidity increase, the HVAC equipment requires more work to cool the air to the required levels in the data center. This results in higher energy consumption. For example, if the outdoor air temperature is 95°F (35°C) and the humidity is 60%, the HVAC system will consume more energy compared to a day with an outdoor air temperature of 70°F (21°C) and 40% humidity.