Abstract: A method and apparatus for determining a representative average weight reading is disclosed, based on a series of weight readings from a scale subject to vibrations. Signals are generated at regular intervals, representative of the weight readings from said scale. Each new weight signal is compared with the previous weight signal, and one of two alternative labels is assigned to each new weight signal according to whether it is greater or less than the previous weight signal, and the opposite of the previous label is assigned if the signals are equal. The weight signals occurring in a weight averaging interval, which extends from a label change in one direction to the next label change in the same direction, are then averaged.