
USDA NASS data show 18% of US corn was mature as of September 15, 21 points behind the five-year average of 39%. Corn condition held at 55% good-to-excellent, the lowest for this time of year since 2013.
The first harvest estimate was 4% complete.
The lagging maturity keeps the risk of frost damage and lower yields in play, which supports corn prices. Buyers should watch for a shift in weather before the crop matures.
After 1,040 past bullish report events, Corn moved a median +0.5% over 5 sessions (62% higher; middle half -0.9% to +2.0%), and +0.8% 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.