"Going forward, we're predicting warmer and wetter springs, and drier, hotter summers," Davis says. "The season fragments and we start to see an early-early season, so that March starts looking like a good target for planting in the future. In the past, March has been the bleeding edge; nobody in their right mind would have planted then. But we've already seen the trend for early planting. It's going to keep trending in that direction for summer annuals." Those drier, hotter summers are likely to change farming practices too, particularly in southern Illinois."Drought periods will intensify in mid- to late-summer under all the climate scenarios. If farmers decide to plant later to avoid the wet period in April and May, they're going to run into drought that will hit yield during the anthesis-silking interval, leading to a lot of kernel abortion. That second planting window is probably pretty risky," Davis says.Risk is the key word. If farmers bet on the early planting window and get hit with a frost or more March precipitation than expected, are they out of luck? Davis says they will have to choose to mud the seed in, plant a different hybrid, or even scrap corn and go for winter wheat later in the season. But given that many farmers choose hybrids and purchase seeds the previous fall, they're unlikely to have that kind of flexibility come spring. Any miscalculation will be incredibly costly.