
Iowa State's crop status update for August 21, 2019 reports precipitation 2 to 6 inches above normal across the I-states since May 1 and growing degree days running below normal in Iowa but above normal in Illinois and Indiana. Crop maturity differences among states are expected to narrow.
Mixed temperature and moisture conditions leave the yield outlook largely unchanged, so the update has limited direct price impact.
After 2,467 past weather events, Corn moved a median +0.1% over 5 sessions (51% higher; middle half -1.5% to +1.7%), and +0.6% over 20.
After 1,964 past weather events, Soybeans moved a median +0.1% over 5 sessions (51% higher; middle half -1.7% to +1.8%), and +0.3% 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.