A method for determining an inlet terminal temperature of an electric vehicle charging inlet using an electronic controller, comprising: obtaining an initial temperature value of a temperature sensor configured to measure the temperature of an inlet terminal of the electric vehicle charging inlet via the electronic controller prior to application of electrical power to the inlet terminal; obtaining a current temperature value of the temperature sensor via the electronic controller at a time after application ( t 0) of electrical power to the inlet terminal; calculating the inlet terminal temperature using the electronic controller based on the initial temperature value, the current temperature value, a predetermined temperature sensor normalization factor, and a predetermined terminal normalization factor stored in a memory device that is in electronic communication with the electronic controller for the time after application of electrical power to the inlet terminal; and regulating the application of electrical power to the inlet terminal using the electronic controller to maintain the inlet terminal temperature below a predetermined threshold based on the calculated inlet terminal temperature, wherein a time series of the temperature sensor normalization factors is previously derived based on experimental simultaneous measurements of the current temperature value from the temperature sensor and the inlet terminal temperature, and wherein the inlet terminal temperature is calculated by the electronic controller using the formula: T terminal t = T sensor t 0 + T sensor t − T sensor t 0 NF sensor t ∗ NF terminal t, wherein T terminal (t) is the inlet terminal temperature, T sensor (t 0) is the initial temperature value of the temperature sensor, T sensor (t) is the current temperature value of the temperature sensor, NF sensor (t) is the temperature sensor normalization factor, and NF terminal (t) is the terminal normalization factor. obtaining an initial temperature value of a temperature sensor configured to measure the temperature of an inlet terminal of the electric vehicle charging inlet via the electronic controller prior to application of electrical power to the inlet terminal; obtaining a current temperature value of the temperature sensor via the electronic controller at a time after application ( t 0) of electrical power to the inlet terminal; calculating the inlet terminal temperature using the electronic controller based on the initial temperature value, the current temperature value, a predetermined temperature sensor normalization factor, and a predetermined terminal normalization factor stored in a memory device that is in electronic communication with the electronic controller for the time after application of electrical power to the inlet terminal; and regulating the application of electrical power to the inlet terminal using the electronic controller to maintain the inlet terminal temperature below a predetermined threshold based on the calculated inlet terminal temperature, wherein a time series of the temperature sensor normalization factors is previously derived based on experimental simultaneous measurements of the current temperature value from the temperature sensor and the inlet terminal temperature, and wherein the inlet terminal temperature is calculated by the electronic controller using the formula: T terminal t = T sensor t 0 + T sensor t − T sensor t 0 NF sensor t ∗ NF terminal t, wherein T terminal (t) is the inlet terminal temperature, T sensor (t 0) is the initial temperature value of the temperature sensor, T sensor (t) is the current temperature value of the temperature sensor, NF sensor (t) is the temperature sensor normalization factor, and NF terminal (t) is the terminal normalization factor.