# Hot dry spells and extreme rain increased corn and soybean prices in the United States Midwest

> A study using weather, crop and price data from 1971 to 2019 finds that hot dry spells and excessive rain contributed to price increases for Midwest soybeans and corn at the Chicago Mercantile Exchange. In extreme cases, the predicted market response to weather shocks was comparable to a 10% price increase. The impact of excessively wet spells grew stronger in later decades.

- Date: 2026-02-01 · published 2026-02-01T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/13022-hot-dry-spells-and-extreme-rain-increased-corn-and-soybean-prices-in-the-united
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

The findings show that weather shocks in the Midwest can move corn and soybean prices sharply, which matters for feed cost planning when summer weather is poor. The effect of wet extremes appears to be growing.

## Read by commodity

- SOY: bullish ▲
- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2020-08-26 | [Low rainfall in US Midwest drives corn prices higher](https://feedsoft.ai/events/51639-low-rainfall-in-us-midwest-drives-corn-prices-higher.md) | +1.5% | +7.0% |
| CORN | 2026-02-11 | [Lack of rain pressures corn and soybeans in the South](https://feedsoft.ai/events/13451-lack-of-rain-pressures-corn-and-soybeans-in-the-south.md) | -0.5% | +1.7% |
| CORN | 2022-06-30 | [U.S. Midwest forecast spells bad news for corn, soybeans \| The Western Producer](https://feedsoft.ai/events/13357-u-s-midwest-forecast-spells-bad-news-for-corn-soybeans-the-western-producer.md) | +1.0% | -16.7% |
| CORN | 2026-05-29 | [Will Midwest Dryness Hurt Corn and Soybean Yields This Summer?](https://feedsoft.ai/events/12998-will-midwest-dryness-hurt-corn-and-soybean-yields-this-summer.md) | -5.3% | -7.3% |
| CORN | 2025-01-22 | [CBOT corn and soybean prices surge amid drought in Argentina – ProAgri Media](https://feedsoft.ai/events/11810-cbot-corn-and-soybean-prices-surge-amid-drought-in-argentina-proagri-media.md) | -0.8% | +3.8% |
| SOY | 2026-02-11 | [Lack of rain pressures corn and soybeans in the South](https://feedsoft.ai/events/13451-lack-of-rain-pressures-corn-and-soybeans-in-the-south.md) | +1.0% | +6.9% |
| SOY | 2024-05-06 | [Rains in the South concern players; demand for soybean meal increases – Eita Gota](https://feedsoft.ai/events/6449-rains-in-the-south-concern-players-demand-for-soybean-meal-increases-eita-gota.md) | +0.3% | -1.4% |
| SOY | 2022-06-30 | [U.S. Midwest forecast spells bad news for corn, soybeans \| The Western Producer](https://feedsoft.ai/events/13357-u-s-midwest-forecast-spells-bad-news-for-corn-soybeans-the-western-producer.md) | -5.0% | -3.9% |

## Sources

- nature.com: https://www.nature.com/articles/s44458-025-00016-4

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