Rainfall is advancing across Brazil, supporting second-crop corn and cotton in Mato Grosso, Goiás and the Cerrado Mineiro with 30 to over 70 mm expected this week. Rain may slow soybean harvesting in Mato Grosso and the north, while Paraná, São Paulo and southern Mato Grosso do Sul stay dry and warm.
Adequate moisture for safrinha corn is mildly bearish for corn yield risk, while harvest delays in Mato Grosso could slow soybean and meal exports at the margin.
After 357 past bearish weather events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -2.2% to +1.3%), and -0.5% over 20.
After 1,079 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.