Selecting outdoor design weather conditions involves considering factors such as temperature, wind direction and speed, and other conditions specific to the location. The type of structure (heavy, medium, or light), insulation, exposure to high winds, infiltration or ventilation load, amount of glass, time of building occupancy, type of building occupancy, and length of reduced indoor temperature also influence the selection of outdoor design weather conditions. For example, a building in a hot and humid climate will require a higher outdoor design temperature than one in a mild climate.