The following maps show estimated spring crop yields for harvest year 2018. Yields were estimated using a agricultural computer model that simulates crop growth, farm management, soil nutrients, weather, and other processes. We used weather data generated from observed values from Sept. 1 2017 to Feb. 1st 2018 and then estimated future weather based on observed historic data until the simulated crops were harvested. More information on our methods can be found at Ag Data Commons.