# Weather Extremes and Variability in Corn Yield | Crop Science US

> Wet spring planting followed by dry conditions during grain fill reduced corn yields in southern Minnesota and northern Iowa. Wet soils delayed planting, encouraged soilborne diseases, shallowed root growth and caused nitrogen loss.

- Date: 2024-11-13 · published 2024-11-13T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/13137-weather-extremes-and-variability-in-corn-yield-crop-science-us
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Yield losses in these key corn-belt areas tighten supplies and support corn prices, though the effect is regional rather than national.

## Read by commodity

- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2025-12-19 | [2025: Year of Extreme Weather, Corn Disease and Worry in Illinois - Field Advisor](https://feedsoft.ai/events/13033-2025-year-of-extreme-weather-corn-disease-and-worry-in-illinois-field-advisor.md) | +0.4% | -3.3% |
| CORN | 2022-06-27 | [Hot and Dry Weather Tees Up a Tense July in the US Corn Belt](https://feedsoft.ai/events/13352-hot-and-dry-weather-tees-up-a-tense-july-in-the-us-corn-belt.md) | +1.8% | -12.0% |
| CORN | 2023-07-27 | [How Extreme Heat Can Affect Corn Yield](https://feedsoft.ai/events/13265-how-extreme-heat-can-affect-corn-yield.md) | -13.2% | -14.2% |
| CORN | 2022-06-28 | [Dry weather stresses US corn yields 28.06.2022 - UkrAgroConsult](https://feedsoft.ai/events/13356-dry-weather-stresses-us-corn-yields-28-06-2022-ukragroconsult.md) | +4.0% | -16.7% |
| CORN | 2022-03-24 | [Mixed Weather Conditions for Second-Crop Corn in Brazil](https://feedsoft.ai/events/13733-mixed-weather-conditions-for-second-crop-corn-in-brazil.md) | +1.8% | +8.1% |

## Sources

- cropscience.bayer.us: https://www.cropscience.bayer.us/articles/bayer/weather-extremes-and-variability-in-corn-yield

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