# Late-Year Rain Benefits South America

> Christmas-weekend rains verified across central Argentina and southern and south-central Brazil, easing moisture stress on developing corn and soybeans. Forecasters said the southwest Argentine grain belt remains dry, and La Nina could still bring drier conditions in January. The Southern Oscillation Index has reversed from La Nina values.

- Date: 2017-12-27 · published 2017-12-27T12:00:00.000Z
- Category: weather · region South America · magnitude low
- Page: https://feedsoft.ai/events/67326-late-year-rain-benefits-south-america
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Adequate rainfall reduces the risk of South American crop losses, which weighs on corn and soybean prices, although the January outlook keeps some risk premium.

## Read by commodity

- SOY: bearish ▼
- CORN: bearish ▼

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2021-01-19 | [Soybeans fall on South American rainfall](https://feedsoft.ai/events/8231-soybeans-fall-on-south-american-rainfall.md) | +0.0% | +0.0% |
| CORN | 2017-12-08 | [No South America Weather Calamity Yet](https://feedsoft.ai/events/67400-no-south-america-weather-calamity-yet.md) | +2.9% | +5.8% |
| CORN | 2019-11-19 | [An Early Look at South American Crops](https://feedsoft.ai/events/55874-an-early-look-at-south-american-crops.md) | +0.6% | +2.5% |
| CORN | 2023-10-30 | [U.S. grains: South America rains push soy futures down - Grainews](https://feedsoft.ai/events/33658-u-s-grains-south-america-rains-push-soy-futures-down-grainews.md) | -3.3% | -6.3% |
| CORN | 2021-12-13 | [Soybeans, corn down after rain in South America - Brownfield Ag News](https://feedsoft.ai/events/9262-soybeans-corn-down-after-rain-in-south-america-brownfield-ag-news.md) | -0.1% | +0.8% |
| SOY | 2021-01-19 | [Soybeans fall on South American rainfall](https://feedsoft.ai/events/8231-soybeans-fall-on-south-american-rainfall.md) | -5.2% | -2.3% |
| SOY | 2017-12-08 | [No South America Weather Calamity Yet](https://feedsoft.ai/events/67400-no-south-america-weather-calamity-yet.md) | -2.4% | -3.4% |
| SOY | 2019-11-19 | [An Early Look at South American Crops](https://feedsoft.ai/events/55874-an-early-look-at-south-american-crops.md) | -2.0% | +2.0% |

## Sources

- dtnpf.com: https://www.dtnpf.com/agriculture/web/Ag/blogs/ag-weather-forum/blog-post/2017/12/27/late-year-rain-benefits-south

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