# Featured | Dry weather affects Rio Grande do Sul's crop

> StoneX cut expectations for Rio Grande do Sul corn after November rainfall ended well below normal during a critical stage, with its earlier estimate of 5.75 million tonnes at risk. The state's soybean crop is not expected to exceed 21 million tonnes.

- Date: 2021-12-16 · published 2021-12-16T12:00:00.000Z
- Category: weather · region Brazil · magnitude medium
- Page: https://feedsoft.ai/events/13756-featured-dry-weather-affects-rio-grande-do-sul-s-crop
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

A sizable corn crop failure in a top producing state reduces Brazilian supply and supports corn prices, while lower soybean output adds to South American tightness.

## Read by commodity

- SOY: bullish ▲
- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2023-03-08 | [Drought affects crops in Rio Grande do Sul](https://feedsoft.ai/events/13658-drought-affects-crops-in-rio-grande-do-sul.md) | -1.6% | -0.6% |
| CORN | 2023-10-03 | [Hot, dry grain fill weather affects yield estimates](https://feedsoft.ai/events/13242-hot-dry-grain-fill-weather-affects-yield-estimates.md) | -0.4% | -2.9% |
| CORN | 2019-10-16 | [Crop Weather -- After the Snow](https://feedsoft.ai/events/56420-crop-weather-after-the-snow.md) | -1.2% | -1.8% |
| CORN | 2021-03-06 | [U.S. grains: Soy futures rally on dry Argentina weather - Grainews](https://feedsoft.ai/events/8633-u-s-grains-soy-futures-rally-on-dry-argentina-weather-grainews.md) | +2.7% | +3.0% |
| CORN | 2023-04-06 | [Brazil: Rains at the end of March collaborated with the soybean crop in Rio Grande do Sul](https://feedsoft.ai/events/13657-brazil-rains-at-the-end-of-march-collaborated-with-the-soybean-crop-in-rio.md) | -0.4% | -2.0% |
| SOY | 2023-03-08 | [Drought affects crops in Rio Grande do Sul](https://feedsoft.ai/events/13658-drought-affects-crops-in-rio-grande-do-sul.md) | -1.7% | -0.5% |
| SOY | 2019-10-16 | [Crop Weather -- After the Snow](https://feedsoft.ai/events/56420-crop-weather-after-the-snow.md) | +0.0% | -3.0% |
| SOY | 2025-03-12 | [Drought shrinks soybean crops, wiping R$13bn from Rio Grande do Sul economy](https://feedsoft.ai/events/13510-drought-shrinks-soybean-crops-wiping-r-13bn-from-rio-grande-do-sul-economy.md) | +1.5% | -0.5% |

## Sources

- stonex.com: https://www.stonex.com/en/insights/featured-dry-weather-affects-rio-grande-do-sul-s-crop/

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