# Agronomy eUpdate July 14th, 2017 : Issue 642

> Kansas Extension warns that recent heat can harm summer row crops. With over 40 percent of corn silking by July 10, temperatures above 95 F and reduced day-night temperature swings could reduce kernel number and grain weight.

- Date: 2017-07-14 · published 2017-07-14T12:00:00.000Z
- Category: weather · region US · magnitude low
- Page: https://feedsoft.ai/events/69803-agronomy-eupdate-july-14th-2017-issue-642
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Sorghum](https://feedsoft.ai/c/SORGHUM.md)

## Why it matters

Heat during silking and grain fill can cut final corn yields, tightening feed grain supplies and supporting prices. The effect is greatest where heat combines with drought.

## Read by commodity

- CORN: bullish ▲
- SORGHUM: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2019-05-17 | [Agronomy eUpdate May 17th, 2019 : Issue 747](https://feedsoft.ai/events/59011-agronomy-eupdate-may-17th-2019-issue-747.md) | +1.6% | +9.9% |
| CORN | 2018-01-26 | [Agronomy eUpdate January 26th, 2018 : Issue 671](https://feedsoft.ai/events/66921-agronomy-eupdate-january-26th-2018-issue-671.md) | +0.3% | +1.2% |
| CORN | 2020-08-01 | [July 2020 ENSO update: La Niña Watch!](https://feedsoft.ai/events/52034-july-2020-enso-update-la-nina-watch.md) | -1.4% | +7.2% |
| CORN | 2022-07-29 | [Grain Market Update 29th July - Irish Farmers' Association](https://feedsoft.ai/events/11487-grain-market-update-29th-july-irish-farmers-association.md) | +2.4% | +3.2% |
| CORN | 2020-07-20 | [Grain Market Update 21st July - Irish Farmers' Association](https://feedsoft.ai/events/6207-grain-market-update-21st-july-irish-farmers-association.md) | -1.2% | -0.3% |

## Sources

- eupdate.agronomy.ksu.edu: https://eupdate.agronomy.ksu.edu/article_new/impacts-of-hot-weather-on-summer-row-crops-642-4

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