Disclosed are exemplary embodiments of apparatus and methods for adjusting controller set points based on outdoor temperature. In an exemplary embodiment, a climate control system controller for providing climate control in a structure includes a processor and memory configured to obtain adjusted heating and cooling set point values determined by combining adjustment amounts with heating and cooling set points set for the climate control system. The adjustment amounts are determined in accordance with deviations of sensed outdoor ambient temperature (OAT) values from an intermediate OAT value predefined in a range of OAT values. The controller, in response to sensed outdoor temperatures in the range of OAT values, controls heating and cooling in the structure in accordance with the adjusted heating and cooling set point values.
