
Summer 2025 weather in the central U.S. was mainly warm rather than hot, with above-normal rainfall especially in the Western Corn Belt. These conditions helped produce the record 2025 corn yield of 186.5 bushels per acre and a record production of 17.0 billion bushels, according to USDA-NASS.
Ten states set record yields.
Record production adds large corn supplies, which pressures prices and lowers feed costs for buyers. The weather explanation suggests yields were driven by favorable conditions rather than a one-off measurement effect.
After 357 past bearish weather events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -2.2% to +1.3%), and -0.5% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.