Aren't weather markets fun? For the third year in a row, the U.S. crop production has been bedeviled by various kinds and combinations of adverse weather ranging from too wet, too dry, too hot and too cold. The spring and summer growing season of this 2013/14 year has been unusually complex. At one time or another and in one region or another, crops have experienced three of those four conditions. So far, it has not been too cold although that is still a possibility and a risk.The level of volatility seen in grain and soy futures markets has been a popular topic since 2008 when markets rose to record heights by mid-year only to collapse later in the year. That price action was extreme enough that it captured political attention even among...