A yield monitoring system is provided for an agricultural harvester. The yield monitoring system has an in-cab display and at least one configurable user defined window operable to display at least two previously collected parameters simultaneously and comparatively in graphical format. The at least two previously collected parameters include previously collected data from at least one yield monitoring sensor or vehicle sensor. The in-cab display may have a menu allowing the choice of paired data sources to be viewed simultaneously and comparatively. Data sources may include quantity of crop yielded, moisture content of crop yielded, rate of flow of crop through the agricultural harvester, protein content of crop yielded, ground speed, speed of operation of the grain elevator, and height of the header above the ground.