
Much of Brazil's center-south received below-average rain over the past 30 days, a critical period for the second corn crop, which makes up about three-quarters of the country's corn output. INTL FCStone cut its second-crop forecast 1.75% to 72.6 million tonnes because of the drought.
A smaller Brazilian safrinha crop tightens export supplies during the period when Brazil typically competes most with US corn, supporting corn prices.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), 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.