Hindcast test data of Beyond Weather's AI crop forecasting model for US average end-of-year soybean yield and total US production. The dataset comprises data from 2000-2023. The lead time of the forecast is 8 months, meaning the forecast is initialized at the start of February of each year. Other variables include; anomalies compared to USDA August outlook and observations, confidence levels of BW forecast and harvested acres, technological trends, and total production levels.