US Farm Weather Shifts with Rain and Cooler Air Across Major Crop-Producing Regions

A significant shift in US farm weather has been reported on September 21. Cooler air and rain have spread across major crop-producing regions, slowing down corn and soybean harvest work in the Corn Belt while improving moisture conditions for newly planted winter wheat on the Plains.

USDA agricultural meteorologists stated that the contrasting pattern is bringing beneficial rainfall to some farms while creating new delays and frost concerns elsewhere. Across the Corn Belt, cool and damp conditions are slowing or temporarily halting fieldwork, including early corn and soybean harvest operations.

In contrast, Plains rain has improved winter wheat prospects as corn belt harvest slows down. Recent and ongoing rainfall across the northern and central Plains has increased topsoil moisture and improved prospects for germination and establishment of recently planted winter wheat, according to USDA's Office of the Chief Economist and World Agricultural Outlook Board.

The moisture improvement is significant because winter wheat establishment depends heavily on adequate topsoil moisture during the first stages of development. Better emergence before dormancy can help crops enter winter with stronger stands, although future rainfall and temperature patterns will ultimately determine crop performance.