Hottest year ever update: Long winter and cold spring threaten Minnesota's growing season

Spring planting in Minnesota is still behind schedule | StarTribune.com

“Cool and wet weather prevailed again in Minnesota for the week ending June 2,” the USDA’s weekly crop report said. “Standing water and muddy fields continued to hamper field work.”
Minnesota farmers were plagued by a long winter and wet spring; they started May with nary a seed in the ground. Then, May turned out to be one of the gloomiest months in decades as measured by cloudy days. The Twin Cities experienced its sixth-wettest March-through-May on record.
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Late planting can reduce crop yields by shortening growing seasons. For corn, yields decline rapidly for every day of planting past mid-May.
“Does this late planting have an effect? Most definitely,” said David Nicolai, a University of Minnesota Extension crop educator in Farmington.
Due to the late start, corn yields on average should be about 84 percent of maximum, he said.