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Rain remains scarce across western Corn Belt

Drier than normal trends to continue through September.

The second full week of September, the week ending September 17, brought more of the same precipitation trends to the United States growing region. Rainfall was generally below normal across the Corn Belt for the week. Precipitation was most widespread in the Eastern Corn Belt, though many received only about 0.25 inches to 0.75 inches of rain for the week.

Heavier rainfall amounts of up to 3 inches fell across more localized areas of northern Illinois and southern Wisconsin. Light rain was present in areas of Nebraska, northern Kansas, and western Texas as well, but totals remained below normal for the week and likely provided minimal if any help to the persistent drought conditions present.

Overall, temperatures trended warmer than normal for the week in the Western Corn Belt, but near average further east in the growing region. This was the 10th warmest second full week of September in 30+ years for the Corn Belt as a whole, according to data from WeatherTrends360. While the start of the week felt a bit more like fall across the region, trends well above normal returned to the Western Corn Belt by mid-week, expanding eastward by the weekend. 

The week ending September 24 is forecast to be dry for much of the Corn Belt. Only scattered light rains are currently forecast by WeatherTrends360. While drier trends will aid with early harvest efforts, the lack of moisture could allow existing drought conditions to worsen in the Western Corn Belt and Southern Plains.

wt 360 US forecast 091822 to 092422

For the week on average, temperatures for a majority of the Corn Belt and to the East Coast will trend 5°F to 10°F above normal. However, don’t let the weekly trend catch you off guard. While temperatures will be well above normal to start the week – with many trending 10°F to >15°F above normal - colder than normal trends start to push into the Dakotas by mid-week. Expanding southward and eastward during the latter part of the week, the entire Midwest will be feeling more autumn-like by the weekend. These cooler trends look to stick around through the end of September and into early October. 



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