# In-season weather data give reliable estimates of corn and soybean yields | South Dakota Business

> Research using in-season weather data finds that weather variability alone explains more than 75% of corn yield variation in several areas of the central Corn Belt. The study supports using weather observations to forecast yields during the growing season. The article is a research summary with no new supply event.

- Date: 2019-06-11 · published 2019-06-11T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/58456-in-season-weather-data-give-reliable-estimates-of-corn-and-soybean-yields-south
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Better in-season yield forecasting helps buyers anticipate supply changes, but this research does not shift near-term prices on its own.

## Read by commodity

- SOY: neutral
- CORN: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2025-11-03 | [2025: Year of Extreme Weather, Corn Disease and Worry in Illinois \| Illinois Soybean Association](https://feedsoft.ai/events/13039-2025-year-of-extreme-weather-corn-disease-and-worry-in-illinois-illinois.md) | -0.7% | +2.3% |
| CORN | 2024-10-16 | [Corn and soybeans regain a little ground after sell-off - Markets - Business Recorder](https://feedsoft.ai/events/27881-corn-and-soybeans-regain-a-little-ground-after-sell-off-markets-business.md) | +2.5% | +3.9% |
| CORN | 2022-01-12 | [Drought Took the Top End Off Corn and Soybean Yields \| Red River Farm Network](https://feedsoft.ai/events/13390-drought-took-the-top-end-off-corn-and-soybean-yields-red-river-farm-network.md) | -2.6% | +3.6% |
| CORN | 2023-02-01 | [Contrasting impacts of dry versus humid heat on US corn and soybean yields](https://feedsoft.ai/events/13304-contrasting-impacts-of-dry-versus-humid-heat-on-us-corn-and-soybean-yields.md) | +1.2% | -4.9% |
| CORN | 2018-09-27 | [Spotty Corn and Soybean Yields \| Red River Farm Network](https://feedsoft.ai/events/62878-spotty-corn-and-soybean-yields-red-river-farm-network.md) | -0.5% | -0.3% |
| SOY | 2025-11-03 | [2025: Year of Extreme Weather, Corn Disease and Worry in Illinois \| Illinois Soybean Association](https://feedsoft.ai/events/13039-2025-year-of-extreme-weather-corn-disease-and-worry-in-illinois-illinois.md) | +0.2% | +2.6% |
| SOY | 2025-09-12 | [Western Corn Belt Yields Shine as Eastern States Struggle With Impact of Disease, Dryness](https://feedsoft.ai/events/13056-western-corn-belt-yields-shine-as-eastern-states-struggle-with-impact-of.md) | +2.2% | +0.7% |
| SOY | 2024-10-16 | [Corn and soybeans regain a little ground after sell-off - Markets - Business Recorder](https://feedsoft.ai/events/27881-corn-and-soybeans-regain-a-little-ground-after-sell-off-markets-business.md) | +0.1% | +1.3% |

## Sources

- spotonsouthdakota.com: https://spotonsouthdakota.com/sd-business/112726/in-season-weather-data-give-reliable.html

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