# Hot, dry grain fill weather affects yield estimates

> Hot, dry weather in late grain fill has caused early top dieback in some cornfields in Indiana and elsewhere. Breeders report that kernel size and plumpness may be reduced, with the effect varying by hybrid.

- Date: 2023-10-03 · published 2023-10-03T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/13242-hot-dry-grain-fill-weather-affects-yield-estimates
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Possible kernel weight losses could trim final corn yields, a modest upside risk for corn prices.

## Read by commodity

- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2020-07-31 | [Hot, dry weather takes a toll](https://feedsoft.ai/events/51954-hot-dry-weather-takes-a-toll.md) | -0.7% | +7.0% |
| CORN | 2023-12-11 | [Brazil reduces estimates for grain harvest amid extreme weather events](https://feedsoft.ai/events/13603-brazil-reduces-estimates-for-grain-harvest-amid-extreme-weather-events.md) | +1.0% | -0.7% |
| CORN | 2021-12-16 | [Featured \| Dry weather affects Rio Grande do Sul's crop](https://feedsoft.ai/events/13756-featured-dry-weather-affects-rio-grande-do-sul-s-crop.md) | -2.7% | +0.4% |
| CORN | 2020-11-30 | [How Badly Has Weather Hurt Yields? \| Feed & Grain](https://feedsoft.ai/events/49991-how-badly-has-weather-hurt-yields-feed-and-grain.md) | -1.5% | -1.0% |
| CORN | 2023-06-12 | [Coceral cuts EU grain harvest outlook on dry weather](https://feedsoft.ai/events/35420-coceral-cuts-eu-grain-harvest-outlook-on-dry-weather.md) | +6.8% | -3.2% |

## Sources

- farmprogress.com: https://www.farmprogress.com/corn/hot-dry-grain-fill-weather-affects-yield-estimates

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