# What’s the deal with variable corn yields?

> Farm Progress agronomist Mike Witt explains that corn yields varied widely within individual fields in 2017 due to drought, floods, heat and cold planting conditions. He advises farmers to evaluate hybrid performance field by field rather than by farm averages.

- Date: 2017-10-24 · published 2017-10-24T12:00:00.000Z
- Category: report · region US · magnitude low
- Page: https://feedsoft.ai/events/68310-what-s-the-deal-with-variable-corn-yields
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Yield variability is an agronomic advisory point with little direct price effect, since the harvest-level picture is already captured in USDA estimates.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2018-04-30 | [What’s Moving The Market? - Corn South](https://feedsoft.ai/events/65535-what-s-moving-the-market-corn-south.md) | +1.4% | +3.8% |
| 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% |
| CORN | 2020-01-31 | [What is the corn supply truth? - High Plains Journal](https://feedsoft.ai/events/55096-what-is-the-corn-supply-truth-high-plains-journal.md) | -0.6% | -3.2% |
| 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 | 2025-09-12 | [USDA Delivers Another Corn Surprise With Yield Cut, Acres Hike](https://feedsoft.ai/events/6853-usda-delivers-another-corn-surprise-with-yield-cut-acres-hike.md) | +5.1% | +3.6% |
| SOY | 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) | -1.9% | -2.5% |
| SOY | 2024-01-17 | [2023 Corn and Soybean Yields](https://feedsoft.ai/events/13212-2023-corn-and-soybean-yields.md) | +1.0% | -3.3% |
| SOY | 2026-05-13 | [2025 NASS County Corn, Soybean, and Winter Wheat Yields](https://feedsoft.ai/events/12994-2025-nass-county-corn-soybean-and-winter-wheat-yields.md) | -0.3% | -7.5% |

## Sources

- farmprogress.com: https://www.farmprogress.com/crops/what-s-the-deal-with-variable-corn-yields-

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