Prices then usually rally into late November or early December after harvest is complete and end users begin needing corn. Prices often fall in January and February as stored crops begin moving to market. Prices then decline as the crop is planted and gets off to a good start in May. Crop problems or dry weather can produce a price rally in late June or early July. Prices typically fall through late July and August as the markets begin to anticipate the coming new crop. A late season rally may occur in September as the market bids for remaining old crop supplies prior to the new crop harvest.
Seasonal patterns are useful for setting time goals in marketing plans.
Seasonal patterns provide clues as to when marketing opportunities might occur. They also suggest periods of the year to avoid for making sales. Seasonal patterns occur every year in most agriculture commodities. Knowing these patterns can help to plan for a time when sales may be made on determining how much longer the crop may have to be stored. Seasonal patterns aren't very useful for setting price goals.