# The Split Personality of 2026 US Corn Yield Estimates

> NASS has revised the national corn yield estimate several times in 2026, lowering, raising and lowering it again after a data processing error in the September Crop Production report was later corrected. The November report was the most recent revision. The October report raised the yield by nearly three bushels per acre and coincided with a 20 cent per bushel price drop on report day.

- Date: 2026-11-13 · published 2026-11-14T00:11:47.474Z
- Category: report · region US · magnitude medium
- Page: https://feedsoft.ai/events/98603-the-split-personality-of-2026-us-corn-yield-estimates
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Swings in USDA yield estimates move corn prices, and the market is now more skeptical of the numbers. Because remaining yield uncertainty is higher this season, the price effect may be smaller if it arrives late in the season.

## Read by commodity

- CORN: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2024-03-19 | [The Curious Case of US Corn Yields in 2023 - farmdoc daily](https://feedsoft.ai/events/13198-the-curious-case-of-us-corn-yields-in-2023-farmdoc-daily.md) | -1.1% | -6.2% |
| CORN | 2023-10-19 | [USDA defends ballooning US corn yield estimates in data meeting](https://feedsoft.ai/events/13243-usda-defends-ballooning-us-corn-yield-estimates-in-data-meeting.md) | +1.0% | -2.6% |
| CORN | 2017-01-17 | [2016 Corn Yields, % of Trend 2017](https://feedsoft.ai/events/72841-2016-corn-yields-of-trend-2017.md) | +2.6% | +3.6% |
| CORN | 2025-05-05 | [Reality check: Does timely US corn planting boost acres and yield?](https://feedsoft.ai/events/13088-reality-check-does-timely-us-corn-planting-boost-acres-and-yield.md) | -2.9% | -1.6% |
| CORN | 2017-01-20 | [County-by-county variability of bioenergy crop yields in the U.S.](https://feedsoft.ai/events/72840-county-by-county-variability-of-bioenergy-crop-yields-in-the-u-s.md) | +0.4% | +1.9% |

## Sources

- farmdocdaily.illinois.edu: https://farmdocdaily.illinois.edu/2026/11/the-split-personality-of-2026-us-corn-yield-estimates.html

---
Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.