
Harvest began in southern Iowa, where farmers in dry areas reported yields better than expected. One Ottumwa farmer measured about 150 bushels per acre on field edges, and an 85-acre field averaged 190 bushels.
About 30% of Iowa's corn had reached maturity by September 17.
Yields in the drought-hit areas are better than feared, which eases concern about a sharp production shortfall and limits price upside for corn.
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 324 past neutral weather events, Soybeans moved a median +0.0% over 5 sessions (52% higher; middle half -1.4% to +1.7%), and +0.7% 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.