# Early Season Hot Spells and Corn Grain Yield Potential  (Purdue University)

> Purdue agronomist Bob Nielsen explains that an early-season heat spell in the Corn Belt does not automatically cut corn yield potential. Plant population and kernel number are set by about the V12-V14 growth stage, so the effect depends on timing and conditions. Late-planted fields remain vulnerable to stand loss.

- Date: 2024-06-20 · published 2024-06-20T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/13175-early-season-hot-spells-and-corn-grain-yield-potential-purdue-university
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

The analysis suggests early heat is not yet a clear yield threat, so it is unlikely by itself to shift corn prices.

## Read by commodity

- CORN: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2018-08-15 | [Warm Nights & High Yields of Corn: Oil & Water? (Purdue University)](https://feedsoft.ai/events/63399-warm-nights-and-high-yields-of-corn-oil-and-water-purdue-university.md) | -0.6% | -1.5% |
| CORN | 2022-07-27 | [Early Look at Corn Yield Prospects Shows High Variability](https://feedsoft.ai/events/13346-early-look-at-corn-yield-prospects-shows-high-variability.md) | +3.1% | +5.3% |
| CORN | 2019-03-13 | [Weather at key growth stages predicts US Midwest corn yield and grain quality - Grain Central](https://feedsoft.ai/events/59917-weather-at-key-growth-stages-predicts-us-midwest-corn-yield-and-grain-quality.md) | +4.3% | -1.0% |
| CORN | 2022-03-29 | [Corn yield winners look to new growing season](https://feedsoft.ai/events/13375-corn-yield-winners-look-to-new-growing-season.md) | +2.7% | +4.0% |
| CORN | 2021-08-27 | [Potential Brazil corn and soybean production in 2021/22](https://feedsoft.ai/events/45432-potential-brazil-corn-and-soybean-production-in-2021-22.md) | -4.6% | -10.8% |

## Sources

- agry.purdue.edu: https://agry.purdue.edu/Ext/corn/news/articles_24/EarlyHeatCornStress-0620.html

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