September USDA WASDE Trim Boosts Corn Season‑Average Price Forecast Despite Large Supplies

The U.S. Department of Agriculture’s September World Agricultural Supply and Demand Estimates (WASDE) report, released within the past 30 days, revised its outlook for the 2026/27 corn crop, lowering production and ending stocks and raising the season‑average farm‑price forecast to $4.80 per bushel, up from $4.50 in August.

Specifically, the USDA reduced its projected yield by 2.2 bushels per acre to 178.5 and trimmed harvested acreage by 100,000 acres, together paring national production by 213 million bushels to 15.8 billion bushels. Beginning stocks were also lowered by 23 million bushels, reflecting stronger export performance in the prior marketing year. These adjustments combine to support the revised price outlook.

Downward Revisions to Production and Acreage

The September WASDE cut the expected yield and harvested area for corn in the 2026/27 season, resulting in a substantial 213‑million‑bushel production reduction to a total of 15.8 billion bushels. Simultaneously, beginning stocks were scaled back by 23 million bushels. Despite this, the USDA projects supplies will still rank as the second‑largest on record — behind only the 2025/26 season.

Price Forecast Lifted to $4.80/Bushel

On the demand side, strong performance in exports during the previous marketing year supported tighter carry‑in stocks, helping the USDA to justify lifting the season‑average farm price forecast to $4.80 per bushel, up from the August estimate of $4.50. This upward adjustment signals moderately increased price support heading into the new marketing year.

Why This Matters to Corn Markets

Even with abundant supply, the USDA’s revisions imply that potential price pressure from a large crop may ease somewhat. The forecasted price uptick to $4.80 provides a more constructive signal to producers and traders, especially if yield and acreage trends continue to deteriorate or if export demand remains firm.

What to Watch Next

Going forward, key indicators to monitor include actual crop yield and acreage progress, updated weekly export sales and inspections, and seasonal weather dynamics during the final stretch before harvest. Fund positioning and speculative activity will also influence price movement, especially in light of the price revisions in the WASDE report.

In summary, the USDA’s September adjustments mark a meaningful development: a tightening of the corn outlook relative to prior forecasts, supporting a higher expected price average even amid near‑record supplies.