Agronomy Conditions in Wisconsin Week of May 12, 2025

May 16, 2025


The week of May 12th featured some early summertime weather with highs in the upper 70’s and low 80’s. The three “chilly saints” were nowhere to found last week. (According to weather lore, the Ice Men days refer to saints associated with May 11th, 12th, and 13th. Those days traditionally are the coldest days of May. According to tradition, it is safe to plant your garden after those days as the risk of frost damage is greatly reduced.) The planting progress continued fast and furious across the area. Many growers have wrapped up planting operations. 85-90% of the planting is complete in the Malone area. Soil temperatures have warmed nicely to around 60F at the 4-inch depth thanks to the warm days and nights. Rainfall for the week in Malone was in the 0.5 to 1 inch range thanks to thunderstorms that rolled through Thursday and Friday evenings.

Planting progress across the nation is ahead of the five-year average as of May 13th. 62% of the corn and 48% of the soybeans are in the ground as of May 13th. Locally in the state of Wisconsin 44% of the corn and 40% of the soybeans have been planted. In addition, 62% of the oats have been planted as well. These numbers will likely be significantly higher in today’s planting progress report.

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The United States early in its history had seen the importance of collecting plant germplasm from this nation and around the world. (Germplasm are living genetic resources such as seeds or tissues that are maintained for plant breeding, preservation, and research.) Benjamin Franklin and Thomas Jefferson were huge believers in collecting seed from countries where the US had ambassadors stationed.

By Kevin Mueller, Senior Agronomist, WI CCA of the Year