# The rain dilemma for U.S. corn, soybeans - Manitoba Co-operator

> Karen Braun writes that localized summer storms make the GFS and European weather models less useful for judging US corn and soybean yields. USDA rated 57% of soybeans and 62% of corn good or excellent as of July 23, both five-year lows.

- Date: 2017-08-14 · published 2017-08-14T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/69305-the-rain-dilemma-for-u-s-corn-soybeans-manitoba-co-operator
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Weather-model uncertainty raises the risk of yield surprises, which keeps a risk premium in corn and soybean prices.

## Read by commodity

- SOY: bullish ▲
- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2018-03-01 | [U.S. grains: Wheat, soybean futures rally - Manitoba Co-operator](https://feedsoft.ai/events/12431-u-s-grains-wheat-soybean-futures-rally-manitoba-co-operator.md) | +0.8% | +1.3% |
| CORN | 2019-05-14 | [U.S. grains: Corn, soy rally as slow planting pace ignites short-covering - Manitoba Co-operator](https://feedsoft.ai/events/6665-u-s-grains-corn-soy-rally-as-slow-planting-pace-ignites-short-covering-manitoba.md) | +7.0% | +11.7% |
| 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 | 2021-03-18 | [Argentine farm heartland set for more high temperatures, limited rain - Manitoba Co-operator](https://feedsoft.ai/events/47977-argentine-farm-heartland-set-for-more-high-temperatures-limited-rain-manitoba.md) | +10.8% | +13.2% |
| 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% |
| SOY | 2018-03-01 | [U.S. grains: Wheat, soybean futures rally - Manitoba Co-operator](https://feedsoft.ai/events/12431-u-s-grains-wheat-soybean-futures-rally-manitoba-co-operator.md) | +1.0% | -2.6% |
| SOY | 2019-05-14 | [U.S. grains: Corn, soy rally as slow planting pace ignites short-covering - Manitoba Co-operator](https://feedsoft.ai/events/6665-u-s-grains-corn-soy-rally-as-slow-planting-pace-ignites-short-covering-manitoba.md) | +5.2% | +8.6% |
| 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% |

## Sources

- manitobacooperator.ca: https://www.manitobacooperator.ca/crops/the-rain-dilemma-for-u-s-corn-soybeans/

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